1. Absorbable antacids such as calcium carbonate must be discontinued.

2. This method produces the following colour differentiation in carbonate minerals: Calcite Varying through very pale pink to red.

3. The mineral calcite is made up of carbonate sheets and intervening planes of calcium ions.

4. Brown calcareous soils contain carbonate materials in the form of rock or shell fragments.

5. Calcium permanent hardness requires the more expensive sodium carbonate, whereas magnesium permanent hardness requires both lime and sodium carbonate.

6. When calcium carbonate is heated it decomposes into calcium oxide and carbon dioxide.

7. These are most abundant in the paler, carbonate rich zones but are also present in the darker diatom mat laminations.

8. Carbonate and evaporite sediments also have a high diagenetic potential.

9. Calcareous regosols contain free calcium carbonate in the parent material, shelly sand.

10. Chemically, chalk is largely calcium carbonate, he argues, and so should yield carbon dioxide if immersed in an acid.

11. The same could be said of carbonate deposition in the mid-Silurian.

12. Doctors have treated manic depression with lithium carbonate since the 1970s.

13. Softies Leather corals lack the hard calcium carbonate skeleton of stony corals.

14. Groups of carbonate ions are arranged in sheets in a manner somewhat like that of the sheet silicates.

15. Zeolite-softened water may be quite alkaline because it contains substantial quantities of sodium carbonate and bicarbonate.

16. The skeletal parts of hard corals are made of calcium carbonate and if this is in short supply they can suffer.

17. Very soft water is not suitable, as there is not enough dissolved calcium carbonate, the main material of the shell.

17. is a sentence dictionary, on which you can find good sentences for a large number of words.

18. The Stinkdolomit is composed mainly of dark, thinly bedded and dolomitised carbonate mudstones.

19. Ferrite, the low-cost non-cobalt material made of ferric oxide and barium or strontium carbonate, was launched in the 1950s.

20. The problem was not helped by each lab having its own preference for the indicator to be used with sodium carbonate.

21. Calcareous soils are freely drained soils containing free calcium carbonate within the profile.

22. Evaporite sediments have a yet higher diagenetic potential than modern carbonate sediments, producing a near-metamorphic fabric.

23. Beneath each machine a wrought-iron pan was installed to collect the water, which contained carbonate of soda to prevent rust.

24. As the time for the moult approaches, the animal absorbs much of the calcium carbonate from its shell into its blood.

25. So the early Carboniferous was again a time of very widespread carbonate deposition.

26. For example, at elevated temperatures, sodium bicarbonate decomposes and releases carbon dioxide and leaves sodium carbonate as mentioned earlier.

27. They use it to fashion the coccoliths shown here, their armoured skeletons made of chalk or calcium carbonate plates.

28. It is also necessary specifically to select veined material for study, hitherto not a regular practise in traditional carbonate petrography.

29. This may be a factor of environment of deposition, or a consequence of rapid sedimentation rates, particularly in carbonate environments.

30. The potassium ferricyanide component is very sensitive, and will detect iron in calcite with 1% ferrous carbonate in solid solution.

31. The production method of industrial barium carbonate was introduced.

32. Calcium carbonate occurs in the allomorphs calcite and aragonite.

33. Impregnation with calcium or calcium salts ascalcium carbonate.

34. Dolomites usually have higher rhombic carbonate / CaO ratio.

35. Diphenyl carbonate shows a typical vinyl ester effect.

36. They extracted some calcium carbonate ores in the mine.

37. Aging of cerous carbonate in aqueous solution was investigated.

38. The northeastern Sichuan area is evaporative carbonate platform.

39. Limestone is rock composed of calcium carbonate.

40. Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate.

41. Bolivian chemist displays a small amount of lithium carbonate.

42. Crude nickel carbonate can be precipitated from raffinate.

43. Meanwhile, we also provide you trisodium phosphate, alkali protease , Sodium carbonate , sodium sulphide and bicarbonate, etc.

44. The high quality of the product with recovery of 82% was obtained by cancelling azeotropism of dimethyl carbonate and methanol.

45. Dimethyl carbonate is synthesized directly from carbon dioxide and methanol in the presence of magnesium methoxide.

46. The characters of heterogeneity widely exist in shaly sand, carbonate and igneous reservoirs.

47. They looked at how the ratios of oxygen isotopes locked in the corals' carbonate skeletons varied month by month as the colonies grew.

47. is a online sentence dictionary, on which you can find good sentences for a large number of words.

48. The rule of the gas - liquid - solid - phase carbonation reaction of lithium carbonate was revealed by double film theory.

49. Using ammonium carbonate to produce complex fertilizer is one of ways to adjust product structure for small size ammonia plant.

50. Acidizing on carbonate rock oil-gas field is one of the most effective measure to reduce pollutant near the wellbore, reform the output section of oil-gas well, and improve the production capacity.

51. Ground calcium carbonate is one of the most important mineral fillers.

52. The effects of solidified agent, nanometer silicon dioxide powder and calcium carbonate powder on line contraction percentage of silicon rubber mould were discussed in this paper.

53. And proceeded the research to a series of influence factor in activate process, such as the activation time, activation temperature the concentration of calcium carbonate and the dose of activators.

54. Upscale cigarette paper appropriation carbonate is placed in to lead the position in England, German etc.

55. The reaction mechanism of carbonation for the production of light magnesium carbonate from dolomite is discussed.

56. The carbonate from calcium carbonate, if not remoyed by calcining may cause foaming in the reactors.

57. GBEIBE Oilfield is a - permeability fractured carbonate reservoir with gas cap and active edge and bottom water.

58. Result discovery that, Gathers aspartic acid to have the fine anti - filthy performance to the calcium carbonate.

59. Carbonate cement is universally more than 10% in sandstones of the upper Yungang formation in Yungang Grottoes area. It's mainly composed of ferriferous calcite and ferriferous dolomite.

60. In this study, homo-and co-PP were modified by nano- calcium carbonate and the effect of additive on scratch resistance evaluated.

61. Analyzing the three-column system of extractive distillation, two-column system adopting o-xylene as an extraction agent for separation of azeotropic methanol-dimethyl carbonate mixture is developed.

62. What is more, the influence of karst surface of carbonate terrane on red clay formation was analyzed.

63. Abstract: The preparing technology of transparent magnesium carbonate and its operating conditions were discussed.

64. The aminolysis reaction rate constants of ethylene carbonate by ethanolamine, diethanolamine and butylamine were obtained according to the kinetic curves under different reaction conditions.

65. The well log responses of the FMI obtained in the carbonate reservoir was analyzed the various applications of the FMI log data.

66. The calcium carbonate content of phosphate rock determines the pore structure.

67. The treatment effect of acidic waste water of the flue gas absorbed, neutralized by crude calcium carbonate, was studied by crystal membrane distillation.

68. For example: HP vesicant, lees, light calcium carbonate, active white earth, magnetic powder, graphite, medical slag and so on.

69. Moreover, some suggestions were given for the development of potassium carbonate industry in China.

70. This paper introduced the research progress of the allochthonous carbonate blocks and carbonate gravity flow for the line sourced carbonate aprons and the point sourced carbonate submarine fans.

71. The determination method of molybdenum and sodium carbonate content in sodium molybdate was proposed.

72. IV. carbonate mineral contain iron , include siderite, ankerite, etc.

73. In the light of that sodium hydroxide, sodium carbonate and their intermixture inhibit hydrolysis of magnesium chloride in mixed salt, it is rational to inject sodium hydroxide in crude processing.

74. Complicated changes have taken place in evaporite rocks in the later years. Yet, a series of nonmetallic and metallic deposits have formed in carbonate rocks bearing evaporite rocks.

75. X-ray studies show that carbonate minerals are aragonite, high-Mg calcite, and lesser dolomite, ankerite and siderite.

76. Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

77. Sodium, sulfate, magnesium, calcium, carbonate, bicarbonate, chloride, and boron should be determined in a water anylasis.

78. This technology changes the ore magnesium, calcium carbonate and fertilizer through calcination, separation, carbonization and roasting.

79. Nanometer sized lead oxide was prepared by pyrogenetic decomposition of lead carbonate synthesized by chemical precipitation.

80. Results The in patients with schizophrenia and disorders are treated by using of clozapine(38. 2%), chlorpromazine(25. 2%), Lithium carbonate (8. 3%), and imipramine (3. 8%).

81. Carbonate sediments in all environments are basically products of an ancient biochemical system.

82. Hydrated Lime , Quicklime , Calcium Hydroxide, Calcium Oxide, Calcium Carbonate, Refractory Products Chemical Supplies.

83. Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.

84. Landfenture of dilapidation such as vagarious peak, stelae, cliff, grotto, gorge and deep slit was formed by the falling action of massif formatted of mallve quartz sandstone and carbonate rocks.

85. Synthesis process of dimethyl carbonate is reviewed. Oxidative carbonylation of methanol to DMC and the possibilities of replacement of DMS and COCl_2 by DMC are discussed.

86. Stony coral skeleton of a goblet, the body that surround the Hydra, its composition almost solely for calcium carbonate.

87. It is synthesized from alkyl-phenol-polyoxyethylene ether, sodium gluconate, sodium tripolyphosphate, sodium carbonate, sodium silicate, sodium sulfate, defoaming agent and penetrant.

88. The synthesis process of light magnesium carbonate from low - grade magnesite by carbonation method is described.

89. Due to the lower mol ratio of the methyl carbonate to the glycerol, the consumption of the methyl carbonate is lowered.

90. N-Methyl-2-(4-phenoxyphenoxy) acetamide was synthesized from 4-phenoxyphenol and 2-chloroacetyl methylamine with DMF as solvent and potassium carbonate as catalyst.

91. Aragonite whiskers were prepared by carbonate process. and the structure properties were analyzed.

92. Carbonate reservoir in Tahe Oilfield is characterized by large burial depth, great thickness variations and strong anisotropism which result in the difficulty of making layer contrast.

93. High alkyl sulfate, non-ionic surfactant, sodium metasilicate , calcium carbonate, sodium carbonate.

94. Pigments have clay ( white clay ), calcium carbonate , sand , small white , aluminum hydroxide and titanium dioxide.

95. The main type of carbonate cement was calcite cementing, with little ferrocalcite cement and rare ferrodolomite cement.

96. By tetrabutyl titanate as titanium source, the ammonium carbonate as the doping agent, used the sol-gel method to prepare titanium dioxide photocatalyst.

97. The isomeric branched carbonate also produced the branched allylic ether selectively (entry 10).

98. The tetrachloroethylene carbonate is decomposed by heating same with a catalytic amount of a tertiary amine or amide.

99. Reservoir acidification reconstruction is one of main measures for low permeability carbonate oil - gas reservoir increasing production.

100. A solidification matrix includes a straight chain saturated carboxylic acid salt, sodium carbonate, and water.

101. The results indicated that rodlike and linear superfine strontium carbonate particles were prepared respectively by adding different crystal shape controlling agents with proper quantity.

102. The results show that the transesterification is an endothermic reaction and higher temperature is favorable for the synthesis of diphenyl carbonate(DPC).

103. A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced.

104. Due to somewhat higher chloride in cobaltous carbonate prepared by cobaltous chloride and sodium carbonate, its application is limited.

105. Calcium silicate slag is the residue from sinter of fly ash with lime stone after alumina extracted by solution of sodium carbonate.

106. As the polyvalent metal inorganic salt, use is made of calcium carbonate, zinc carbonate or calcium phosphate.

107. This article introduced the usual terms of grain size, measurement and production control for high -purity barium carbonate. it also presented some measures to control grain size in the production.

108. The grained Carbonate rocks of Qianjiang Formation in Qianjiang Sag can be divided into oolitic limestone, sand-clastic limestone, mud-crystal sand-clastic dolomite, alga-gobbet limestone etc.

109. The soluble rocks in this area are the carbonate rock constructions of the Sinian, the Cambrian and the Ordovician period.

110. Taoyuan gold deposit locates in impurity carbonate rock containing volcanic materials of Lower Carboniferous, lower rock formation, littoral- neritic facies.

111. Objectives To evaluate the efficacy and safety of oral calcium carbonate suspension on the treatment of childhood indigestion caused by hyperacidity.

112. During the middle-late period of basin as arid climate , except wide developed land facies red coarse clastic rock was deposit, there was a little carbonate deposit.

113. Some proposals about prepassivation of mild steel equipments in hot potassium carbonate CO _ 2 - stripping systems are suggested.

114. Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.

115. The application of an active nano - calcium carbonate in tire was experimentally investigated.

116. The synthesis of magnesium pyruvate from pyruvate acid with magnesium carbonate was studied.

117. Adding vinylene carbonate(VC) into electrolyte could enhance the conductivity and stability of anode surface.

118. The effects of potassium titanate whiskers and calcium carbonate whiskers and needle-like wollastonite on the tribological properties of braking friction material were studied.

119. The composition of special-purpose degasifier for cleaning aluminium alloy is formed from fluorite, active carbon, calcium carbonate and potassium carbonate.

120. The process and characteristics agitated continous bubbling carbonation for producing superfine calcium carbonate are introduced.

121. The paper briefly introduced new preparation technology of the wider application of white carbon black which is made by the material of water glass and ammonium hydrogen carbonate .

122. The air sac can also be internally filled with a certain amount of gas generant which includes carbonate and pharmaceutically acceptable organic acid.

123. The experimental results indicate that the mode of hydrocarbon expulsion of carbonate source rocks is different from that of the argillite, and has its own special characteristics.

124. The vertical miler mills applied to producing non-metallic minerals such as ground calcium carbonate, barite, pyrophyllite and others were discussed.

125. Cavity constitutes the main reservoir space of fracture-cavity carbonate reservoirs in Tahe Oilfield and shows highly discrete distribution.

126. It is a new process that using sodium carbonate decahydrate develope sodium percarbonate. Its'technoligic condition and economic feasibility is studied.

127. The pilot - scale test results of producing Boric acid and manganese carbonate from B - Mn ore are elucidated.

128. The main kinds of rocks include carbonate rocks , tuffite, siliceous rocks and quartz sand - stone.

129. The cleaning active system is comprised of a solid oxidizing agent and a metal chelating agent or a carbonate.

130. The substrate composted with sawdust and cotton seed hull supplemented with calcium carbonate have been proved to be suitable for P. platypus cultivation in Kunming.

131. The catalysts and reaction conditions have been studied for esterinterenange between propenyl carbonate and methanol to produce dimethyl carbonate (DMC).

132. The synthesis of ethyl methyl carbonate(MEC) using the transesterification of ethanol and dimethyl carbonate(DMC) catalyzed by K 2CO 3 under certain temperature was studied.

133. Ingredients: Natural sea salt, aloe moisturizing essence, Carbonate, cell activator.

134. Coast-dune-rocks are formed in deposits of wind-drift sands through, carbonate cementation and show typical features of wind-borne deposits in texture and structure.

135. The design feature, hardware configuration and software implementation of JX-300XP ACS ap- plied in methyl carbonate device in Heilongjiang Chemical Industry Group were introduced.

136. During metamorphization the siderite is transformed into magnetite under the action of high temperature and high pressure, while other Fe-bearing carbonate rocks are changed in to skarns.

137. The products in the preparation of diethyl carbonate (DEC) from diethyl oxalate (DEO) by decarbonylation over K2CO3/AC (activated carbon) were analyzed by gas chromatography-mass (GC-MS).

138. The Lower Ordovician in Tazhong area is dominated by marine carbonate.

139. A small rounded accretionary mass, usually of calcium carbonate,(/carbonate.html) larger and less regular than an oolite.

140. The molten carbonate fuel cell ( MCFC ) - gas turbine hybrid system was analyzed.

141. Present situation of matrix acidizing on carbonate rock and sandstone is discussed.

142. Dissolution gave secondary porosity and increased porosity, and it occurred mainly in feldspathic grains and carbonate cementation.

143. Based on the theory of sonochemistry, the influence of ultrasound on the carbonation process of the synthesis of nanometer light calcium carbonate is studied initiatively.

144. Thus the term dialkyl carbonate includes, for example, methyl ethyl carbonate.

145. The application of dimethyl carbonate in thermoplasticacrylic varnish, pyroxyline varnish, alkyd varnish and PU vamish are introduced.

146. The relation between clay - bearing carbonate rock acoustical and lithological characters was investigated under the air - saturated condition.

147. Water (aqua), glycerin, aloe vera gel, hydrated silica, calcium carbonate, xylitol, xanthan gum, potassium sodium levulinate.

148. Any of various preparations of ammonium carbonate and perfume, sniffed as a restorative or stimulant especially to relieve faintness and headache.

149. Crystalline neodymium carbonate was prepared by aging amorphous neodymium carbonate, which was formed by the reaction of neodymium chloride and ammonium bicarbonate, at elevated temperature.

150. The floatation tungsten concentrate is treated by acid pickling to remove phosphonium and carbonate, and its final concentrate is 70.

151. Many carbonate masses older than Middle Palaeozoic are of dolomite rather than calcite.

152. Objective : To evaluate the efficacy and safety of mirtazapine combined with lithium carbonate on bipolar depression.

153. A method of producing lithium aluminosilicate (LAS) ceramics, which uses a mixing powder of lithium carbonate, aluminum oxide, and silicon oxide as a raw material powder.

154. The Cambrian phosphoric ore is mainly composed of calcic phosphate, carbonate, silica and silicate minerals.

155. Examples are sodium carbonate and potassium acid phthalate which are to standardize acid and base solutions.

156. By fluid diversion experiments of the variable-viscosity acid(), the result showed that it is difficult to penetrate the deep acid etching wormhole in carbonate cores with low matrix permeability.

157. The Ordovician system carbonate rock reservior in Tahe oilfield lies deep in the earth. Having high temperature there, the reservior has many difficulties in acid filtering and acid rock reaction.

158. Study shows that the Ordovician carbonate formation in this area has the characteristic of very low groundmass porosity.

159. Rennie fruit tablets contain the active ingredient calcium carbonate, which is a type of medicine called an antacid .

160. At present mainly uses the union system alkaline process production calcium carbonate soda ash.

161. Carbonation is the combination of carbonate or bicarbonate ions with minerals.

162. The results indicated that the Pinctada martensii shells were all consisted of the major Calcium carbonate and a slight amount of organisms.

163. Put into operation, the system is stable, safe and reliable, increased the yield and quality of ethyl methyl carbonate.

164. The contrast tests are carried to some complex reagents for examining process conditions feasibility of removing aluminum from praseodymium -neodymium carbonate.

165. It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature.

166. The hammer is encrusted with calcium carbonate, which can happen quickly.

167. This paper puts forward a method to distinguish reservoir types in carbonate formation based on the electrical conduction efficiency.

168. Test for calcium ions in calcium carbonate - ---- by flame test.

169. Objictive: A FTIR method was established for the determination of dimethicone in compound calcium carbonate chewable tablets.

170. Calcium oxide can neutralize peptic acid better than calcium carbonate.

171. Its Outangdi Formation of the Upper Carboniferous system occurs as mixed deposits of terrigenous clastics and carbonate.

172. The invention relates to a hair dyeing method starting from a composition comprising at least one ortho-diphenol, one metal salt, hydrogen peroxide, (bi)carbonate and a basifying agent.

173. When urea is added to soils IT is converted rapidly to ammonium carbonate by hydrolysis, a reaction which is activated by enzyme urea se.

174. The Mesoproterozoic Tieling Formation in Huailai, Hebei province, consists principally of an association of littoral- neritic carbonate rocks.

175. The experiment uses sodium hydroxide, sulfuric acid, nickel carbonate to deal with wasted nickel catalyst.

176. To recycle calcium carbide residue by - productindustry , needle - like calcium carbonate was synthesized by calcium carbide residue.

177. In this paper, the quality of the manual noodle such as the amount of water, salt, sodium carbonate and phosphate monoester starch were mainly studied.

178. A method of producing crystal sodium fluoride with sodium fluosilicate and sodium carbonate is introduced. And its optimal operations are described in detail.

179. Ultrafine alumina powders were prepared by pyrolysis of the aluminium precursor powders obtained by precipitation method using aluminium nitrate and ammonium carbonate as raw materials.

180. Less neodymium rare earth carbonate with different crystalline feature can be produced.

181. The vertical variation is that there are many autogenic carbonate sediments in the earlier period and that terricolous sediments are dominant in the later period.

182. Therefore, the company's business is expected to benefit from lithium carbonate.

183. The Result can be used to guide the design and improvement of the technological process of platy calcium carbonate.

184. With the promotion of new energy vehicles, lithium carbonate demand will rapidly increase.

185. The standard X - ray diffraction Fourier pattern of calcium carbonate for Pearl Aragonite mineral aragonite was obtained.

186. The preliminary study has been conducted to the preparation method and the performance of Ammonium carbonate capsule, and received the good effect.

187. The extractive magnesium sulfate reacts with ammonium carbonate, the high - purity and activity magnesia is obtained.

188. In the east part of the North China, there are potential carbonate source rock of sea facies of Lower Paleozoic and good coal formation source rock of Upper Paleozoic.

189. Lithium carbonate, G CSF and glucocorticoids were very effective in agranulocytosis induced by ATD.

190. After reduction , manganese is extracted by sulfuric acid and high purity manganese carbonate is obtained after impurity removal from the solution and reaction with ammonium carbonate.

191. Formed as a sublimate (mixed with ammonium hydrogen carbonate) when calcium carbonate and ammonium sulfate (or chloride) are heated together.

192. The carbonate plateform and back-plateform basin are the basic environmental model of the Chartai Group.

193. In this paper, the scale inhibition and dispersion effects of sodium lignosulfonate (Chinese red pine) on calcium carbonate and its corrosion inhibition to iron are determined and studied.

194. To evaluate safety and efficacy of administration schedule of continuous epidural infusion of lidocaine carbonate in patients during epidural anaesthesia by clinical study.

195. Paleozoic carbonate buried hill reservoir in Nanpu oilfield is a pore - fracture dual media reservoir.

196. Experiments show that causticizing by adding a small quantity of slaked lime can eliminate the interference of carbonate ions and humic acid salts.

197. Some suggestions for the development of potassium carbonate industry in China are given.

197. is a sentence dictionary, on which you can find nice sentences for a large number of words.

198. This paper is concerned with preparation method of nano-sized magnesium oxide from ammonium carbonate and magnesium chloride.

199. Limited by the seismic scale resolution, how to forecast the distribution of reservoir by rule and line is a pivotal condition of the strong reservoir heterogeneity carbonate exploration activity.

200. Then the refined eucommia ulmoides oliver seed oil was obtained by degumming with phosphoric acid, neutralizing with calcium carbonate, bleaching and deodorizing .

201. Precipitated calcium carbonate is a good paper filler , the filler retention rate improve after modification.

202. With the limnological characteristics of water and sediment, the influencing factors on isotopic composition in sedimentary organic matter and carbonate were discussed.

203. The clastic rock reservoirs of Upper Devonian and Silurian and the carbonate reservoirs of Middle and Lower Ordovician are mainly distributed in the pen- dine area around central Tarim basin.

204. The grain structure of different loess types, diffluent salt gypsum, gypsum content and carbonate of lime content, are the influencing factors of CBR value of loess filler.

205. Nanometer calcium carbonate was prepared taking calcium chloride, ammonia and carbon dioxide as material by carbonization.

206. Rock faces commonly show a stockwork of intersecting quartz and carbonate veins.

207. Spectral gamma-ray caused by inelastic neutron reaction can give information of carbonate and oxygen content, then oil-bearing saturability can be gained as well.

208. This paper preliminary studied the ammonium phosphate type and sodium carbonate type SFPEA by the system.

209. Using the process:water leaching, zinc oxide, causticize, carbonate, solvent extract, stripping to recycle molybdenum and to regenerate alkali.

210. 10 % sodium carbonate solution ( 50 ml ) and then with water ( 50 ml ), after which It'solidifies.

211. Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.

212. Methods of preparing nanometer strontium carbonate with high purity are also reviewed.

213. The ability of the gas phase inhibitor — cyclohexylamine carbonate ( CHC ) for chemical equipment was studied.

214. In order to calcine calcium carbonate fines, the technique of high - temperature pelletization has successfully been used.

215. Stable acetic acid methanation process must form a stable pH gradient, which is the fundamental reason for the calcium carbonate precipitation.

216. AAR can be assorted two classifications: Alkali - Silica Reaction ( ASR ) and Alkali - Carbonate Reaction ( ACR ).

217. C is mainly of ferromanganese carbonate series, and ? C mineral composition of sediments in the East Sea is dominated by siderite.

218. In chemical industry , alkali is used to produce soluble glass , light and heavy sodium carbonate , etc. In metallurgy it is used as flux .

219. Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC). The production structures were identified by elemental analysis and IR.

220. Content of the project: utilize CO2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc.

221. The high-quality source rocks of the lower formation of Es_3, usually with laminated structure, are primarily composed of carbonate laminas and clay laminas with rich organic matter.

222. Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.

223. Before this alkaline lake went dry, tufa formed when a freshwater spring percolated from below and formed calcium carbonate deposits.

224. The area we debated is in infraneritic environment at the Meishucunian Age, early Cambrian Period, when deposited a suit of carbonate and phosphate.

225. Objective : To study a improved method on determination of chlorine in sodium carbonate as food additive.

226. The last mentioned dolomites predominate the other two, with the ancient carbonate rock upland of biolith origin in neighboring provinces playing the controlling role.

227. Diphenyl carbonate ( DPC ) was synthesized by decarbonylation of diphenyl oxalate ( DPO ) over Ph 4 PCl catalyst.

227. is a online sentence dictionary, on which you can find excellent sentences for a large number of words.

228. This paper is concerned with preparation method of nano - sized magnesium oxide from ammonium carbonate and chloride.

229. The main deactivation reason of catalyst in low temperature methanol synthesis is that CH 3ONa is transformed to weaker bases such as sodium formate and methyl carbonate.

230. Early Paleozoic rock are mainly carbonate , dolomite, Carboniferous - Permian coal-bearing clastic rock and a small amount of Archean crystalline metamorphic rocks and Mesozoic-Cenozoic granite acid.

231. The orthogonal experiment for ammoniating rice straw at elevated temperature was arranged in a small ammoniation oven with ammonium hydrogen carbonate as ammoniating agent.

232. Objective To observe the effects of butorphanol coordinated with lidocaine carbonate on draw reaction and newborns at epidural anesthesia for cesarean section.

233. Studies of the slope carbonate gravity current are of important significance in the studies of paleogeography and paleotectonic environment.

234. The Al - Si eutectic alloy was directly modified with rare earth carbonate, and satisfactory results were gained.

235. Ammonolysis of dimethyl carbonate(DMC) to carbamate, a more promising route for synthesis of carbamate, was reviewed in detail, especially the catalysts.

236. Using sodium carbonate and calcium oxide as cheap acid-capturer, perfume furfuryl butyrate was synthesized from furfuryl alcohol and butyryl chloride, and was characterized by GC and IR.

237. In addition, the ALH 84001 magnetites exhibit epitaxial growth relationships with the host carbonate, and are therefore unlikely to have formed within the cells of bacteria (Bradley et al. 1998).

238. Marine carbonate rocks constitute the main body of upper Paleozoic rocks of the region, with the organic carbon content corresponding to gam-ma distribution and a fairly low average value.

239. This paper studied the manufacture of reagentlevel lithium sulfate monohydrate from industry level lithium carbonate.

240. Micro - analysis demonstrated Al ( OH ) 3 crystal coating on the calcium carbonate whisker well.

241. A type of topography formed in areas of widespread carbonate rocks through dissolution. Sink holes, caves and pock-marked surfaces are typical features of a karst topography.

242. Selective leaching of nickel, cobalt and copper from cobalt crusts was attained by using ammonium carbonate solution and sulfur dioxide gas as a reductant.

243. Undissolved in water or ethanol, easily dissolves in inorganic acid(nitric acid, hydrochloric acid), acetic acid and ammonium chloride solution, slightly dissolves in alkali metal carbonate solution.

244. The technology and mechanism of solution chemistry of preparation of strontium carbonate by double decomposition from celestite concentrate were investigated.

245. Objective: To evaluate the efficacy and side effects of clonazepam and carbamazepine in the treatment of manic episodes refractory to lithium carbonate.