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单词 Diethyl
例句
1. Diethyl ether was used as extractor solvent.
2. Methods Diethyl phthalate and diethyl succinate were used for raw material to synthesize the Rubidate.
3. HP-5 capillary column was used for separation, diethyl phthalate as internal standard and FID for detection.
4. A new technology for preparation of Ethoprophos Diethyl Dithiophosphoric acid , Propance Bromide and Dimethylamine was introduced.
5. Diethyl fumarate was synthesized with maleic anhydride and ethanol as raw materials, sodium bisulfate and aluminium trichloride as catalysts.
6. Aim Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials.
7. Through series of eliminating and substituting reactions, using diethyl oxalate, ethyl propionate, pyrrolidine etc. as starting material, we achieve the new coolant 2(5H) - MPF.
8. The enanthal diethyl acetal is synthesized catalyzed by sodium bisulfate , with heptaldehyde and ethanol as raw materials.
9. In this paper , technological process of diethyl aluminium chloride installation is described in detail.
10. One common phthalate, diethyl phthalate used in fragrances, is still legal in the U.S. as well as in the E.U.—where there are much stricter cosmetic safety standards.
11. Under the effect of diethyl aluminium chloride, the catalyst of the invention can be used for catalyzing ethylene polymerization.
12. 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).
13. The rice is washed by diethyl ether before coating vegetable oil. The solvent, dosage of oil and dosage of sample were selected by orthogonal design.
14. With diethyl malonate as the extractant, the condition of extracting gold the electronic scrap was studied.
15. First, 1,4-diphenyibutane can be obtained by bromobenzene and 1,4-diphenylbutane at the present of natrium and diethyl ether A.
16. The cultural fruiting bodies of the Gymnopilus spectabilis were phytochemical investigated using layer extracts with petroleum ether, diethyl ether, methanol and water and silica gel chromatography.
17. Taking succinic acid, alcohol as material, cation exchange resin as catalyst the diethyl succinate is synthesized.
17.
18. White powder or granule. The density is 1. 24. Soluble in CS2, benzene, chloroform, alcohol, diethyl ether , insoluble in water and lower concentration alkali. Stability storage.
19. The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.
20. The two-phase nitration ofp-cresol by aqueous sulphuric acid, potassium nitrate and diethyl ether has been studied, yield as high as 83% 2-nitro-p-cresol.
21. The 30 main compounds are bornyl acetate , salicylic aldehyde, diethyl malonate, ethyl linolenate, etc, which amount to 76.95 % content of the oil.
22. Diethyl 1, 2 - DEE was synthesized in catalytic hydrogenation from diethyl phthalate as raw material.
23. Some mesoporous materials of zirconium phosphate were synthesized by hydrothermal method using some templates such as CTAB, TBAB, diethyl amine, ethylenediamine and urea, respectively.
24. Through nitrosation , hydrogenate reducion, and acylate three steps, the yield surpass 80 % for the diethyl malonate.
25. Changes of IR group vibrational frequency in the blends of diethyl silicone and sebacate were studied in this paper.
26. RP - HPLC absolute calibration curve method for the determination of Diethyl Maleate.
27. Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.
28. Diethyl 1, 2 - cyclohexanedicarboxylate ( DEE ) was synthesized in catalytic hydrogenation from diethyl phthalate as raw material.
29. No osmyl and no taste. Soluble in Benzene, Acetone, C2H4Cl2, CS2, toluene, party soluble in alcohol, diethyl ether, insoluble in water, gasoline.
30. In this paper, a modified method for preparing DL-phenylalanine is described, in which benzylation of diethyl acetamidomalonate is carried out under phase-transfer catalytic conditions.
31. A series of turbidity measurements have been made for binary solutes of diethyl maleate in heptane, octane, nonane, and decane in the critical regions at various wavelengths and temperatures.
32. Results To determine the Oridonin extracted from diethyl ether of plasma by RP-HPLC method, the retention time was stable, the linear curve fitted well, and the results were accurate and reliable.
33. Diethyl Fumarate is synthesized by esterification of maleic anhydride and ethanol under microwave radiation on one-step method.
34. Diethyl ether and acetone extracts of Xanthium sibiricum (the whole, not including fruit) and these two kinds of extracts of leaf had strong fungistasis.
35. Pinacolone reacts with diethyl oxalate in presence of sodium methylate under refluxing to get both methyl and ethyl pivalopyruvates in 88% yield.
36. This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.
37. Lccal anesthesia, nerve block, Diethyl ether anesthesia and intravenously balanced anesthesia with ketamine should be considered first.
38. Synthesis of 2-(ethoxycarbonyl) cyclopentanone by Dieckmann reaction with diethyl adipate as raw material was studied.
39. Fat in male and female squillid meat and squillid heads was extracted with diethyl ether by means of rapid fat extractor instead of Soxhlet extractor respectively.
40. Through extractive separation with diethyl ether, the method has been applied to the determination of Fe in tap water, the relative error is 4.3%, the rate of recovery is 95.5-107.7%.
41. Ethylene oxide(EO) tetrahydrofuran(THF)copolyether reacted with 2,4 toluene diisocyanate, and inert oligomeric cyclic ether(OCE) was extracted with diethyl ether.
42. Vapor - phase synthesis of N, N - diethyl aniline via diethyl ether over Al _ 2 O _ 3 was studied.
43. Diethyl malonate is an important organic synthetic intermediate which is widely used in the production of pharmaceutical, colorants and spicery .
44. Diethyl xanthate not only adsorbed chemically but also became dixanthogen on jamesonite surface.
45. Properties Light yellow powders, atoxic, insoluble in water, soluble in alcohol and diethyl ether, etc...
46. Diethyl fumarate was synthesized with maleic anhydride and ethanol as raw materials, sodium bisulfate and aluminium trichloride as catalyst.
47. Water softeners can be EDTA or salt. 704, also known as 6501,(/diethyl.html) refers to the coconut oil amine diethyl phthalate.
48. Some primary reason is given to explain that th sensitivity of the new silver salt spectrophotometry is much higher than that of SDD(silver diethyl dithiocarbamate)method.
49. Study of the Charge-transfer Complex between Styrene and Diethyl 2, 3-dicyano-2, 3-di(p, m- Dimethoxylphenyl)succinate or Acrylonitrile.
50. The main flavoring compositions including diethyl succinate, phenylethanol, octanoic acid and decanoic acid in contaminated grape wine decreased evidently and even not detected.
51. Under the alkali conditions, the gramine condension with diethyl acetamidomalonate to obtain the condensation compound.
52. By reacting isobutyraldehyde with diethyl oxalate using sodium methoxide as catalyst, 3-methyl-2-oxobutanoic acid, sodium salt was prepared by one pot.
53. An efficient cleaner for centralized air conditioner is prepared from sulfamic acid, citric acid, hydroxy ethidene diphosphonic acid and diethyl thiourea through mixing.
54. Diethyl glutarate was synthesized using glutaric anhydride and ethanol, which were separated from dicarboxylic acid, as raw material, heteropoly acid as catalyst.
55. Disculfiram was synthesized from diethyl amine, carbon disulfide and peroxide, and the reaction condition was studied.
56. Treatment of "three wastes", process feature, and its result were given for producing diethyl malonate from chloroacetic acid by cyanation and esterification.
57. Imazethapyr is synthesized from 3 - methyl - 2 - butanone. Butyraldehyde, nucochloric acid or diethyl oxalate by eight steps reaction.
58. The deicing fluid is ethylene alcohol or ethyl ether or ethylene glycol monobutyl ether or ethylene glycol diethyl ether or glyceryl alcohol or triethanolamine.
59. The PPVK films thus obtained showed good redox activity and high electrochemical stability in boron trifluoride diethyl etherate.
60. Under the selected chromatographic conditions, the resolution between methyl 3-amino-2-thiophenecarboxylate and the internal standard diethyl phthalate and impurities was good.
61. Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.
62. To develop a synthetic route of 4 (N, N dimethylamino)butanal diethyl acetal .
63. In the presence of catalytic amounts of samarium trichloride, acetophenone diethyl ketals reacted with acetyl chloride to give 1,3,5 - triarylbenzenes in high yields.
64. Diethyl maleate was synthesized from maleic anhydride and alcohol in the presence of sodium bisulfate monohydrate.
65. The chemisorption was the important characteristic of the interaction of jamesonite with diethyl dithiocarbamate.
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