1. The sulphuric acid ate into the parts of the metal where the coat of paint had peeled.

2. The water was found to contain traces of sulphuric acid.

3. Pour exactly 100 ml of sulphuric acid into a measuring cylinder.

4. The residue is treated with sulphuric acid and boiled.

5. As time passed, larger and larger quantities of sulphuric acid were exploded, prompting cheers from the crowd.

6. Hydrochloric acid is sometimes replaced by nitric or sulphuric acid.

7. Here he also made alum and sulphuric acid by the lead chamber process.

8. The sulphuric acid has eaten into these steel pipes.

9. Water. Carbon dioxide . Sulphuric acid. Calcium hydroxide.

10. A sulphuric acid spill polluted the East River.

11. Be careful of the dilute sulphuric acid.

12. The roasting and leaching behavior of spodumene in sulphuric acid process was investigated.

13. By the carbonification degree in the concentrated sulphuric acid, the mineral wax(), such as paraffin wax added can be determined.

14. Both concentrated sulphuric acid and dilute sulfuric acid are corrosive.

15. Other applications have been demonstrated, including concentrated sulphuric acid and nitrating acid mixtures.

16. Water. Carbon dioxide . Sulphuric acid. Calcium hydroxide. Alpha. Beta.

17. Sulphuric acid was produced in single - absorption process with total sulphur recovery of 92 %.

18. Taking sodium silicate and sulphuric acid as a composite depressor, float As and depress Sb.

19. Those used range from mild organic acids such as citric acid to phosphoric acid highly reactive sulphuric and hydrochloric acids.

20. Electrolytic production of alkalis and improved methods of making sulphuric acid soon followed.

21. Every year Val'Ouest will use 32,000 tonnes of ammonia and 92,000 tonnes of sulphuric acid to treat 300,000 tonnes of slurry.

22. No problem if your inquisitive Year 10 tips potassium into concentrated sulphuric acid.

23. Moisture in the coal would quickly become converted into dilute sulphuric acid, and attack the sides of the hold.

24. The amount of water vapour in a battery depends on the concentration of sulphuric acid in the solution.

25. Peregrine Phillips took out a patent in 1831 for the contact or catalytic process for the manufacture of sulphuric acid.

26. The XPS spectra of carbon fibers electrochemically oxidized in acetic acid, nitric acid, phosphoric acid, sulphuric acid and ammonium carbonate were fitted by a Gaussian Lorentzian mixed function.

27. Formulation design for CSM compound resistance to 98% of concentrated sulphuric acid has been described in the paper.

28. In fact, as early as 200 years before, Le'Blanc process for manufacture of soda ash was to produce Na2CO3 accompanied with sulphuric acid by Glauber's salt.

29. Generally, the WSA plant will be brought into play in both sulphuric acid process and environment protection.

30. Polarization curves and EIS method were employed to investigate inhibition behaviors of propargyl alcohol(PA) for Q235 steel in sulphuric acid.

31. Stannic Chloride can be used as catalyst for esterification instead of sulphuric acid.

32. Sulphuric acid is used to do this. The zinc content dissolves whereas iron precipitates and lead and silver remain undissolved.

33. The nitrate ions react with 2,6- dimethylphenol in a solution of sulphuric and phosphoric acids to form a stable complex that is 4-nitro-2,6-dimethylphenol.

34. 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.

35. A novel technology of separating indium and tin from sulphuric acid leach solution of ITO waste target by sulphuration precipitation has been developed.

36. A new drying and absorption process is put forward for sulphur - burning sulphuric acid plant.

37. The indigo dyed fibre fabric was dissolved with concentrated sulphuric acid. The solution was analyzed spectrophometrically.

38. The technology process and production situation of the chlorine hydride absorption system in potassium sulphate process with traditional sulphuric acid process is introduced.

39. Development and application of a diluter for low - level heat recovery in sulphuric acid plants are described.

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40. METHODS: The contents of total alkaloids, diester diterpenoid alkaloids and polysaccharides were measured by acid dye colorimetry, HPLC and sulphuric acid-anthrone colorimetric method respectively.

41. Introduces the structure, characteristics of LGQ type gauger, and the situation of measuring water and sulphuric acid in SSP production.

42. Several upgrading and modernization of the sulphuric acid plants were completed in minimum shutdown time and according to practical condition of plants, resulting in significant economical benefits.

43. The hydrolysis of dried - powdered fibrous sago waste by sulphuric acid and glucoamylase was studied.

44. His prototype used dilute sulphuric acid and operated at room temperature.

45. In this work, the 4-methoxyphenol was prepared from hydroquinone, methanol which were catalyzed by benzoquinone and concentrated sulphuric acid. The yield of 4-methoxyphenol was 80%.

46. In the first step KHSO4 is formed from KCl by acidulation using sulphuric acid.

47. In the process of catalysis and synthesis of polyester polyhydric alcohol by MSA, the catalyst performance of MSA was hatter than sulphuric acid.

48. The improvement and operation of natural circulation waste heat boiler for sulphuric acid plants are described.

49. Protein in foods is determined after digestion with sulphuric acid.

50. After removing polyphenols, pigments and other substances by precipitation with lead subacetate, the residual lead ions are removed by adding sulphuric acid.

51. The additive is the reaction product of sulphuric acid, water and leady oxide.

52. The GB stipulates that high manganese steel should be dissolved by rare sulphuric acid, the silicon in the solution should be determined by the molybdenum blue photometric method.

53. This Paper studies the reaction conditions of the Barium Sulphate and EDTA in ammonia water solution and proposes to use EDTA titration to determine sulphuric acid in Trinitro-resorcinol.

54. The plastic housing, mostly polypropylene, contains lead electrodes and sulphuric acid.

55. Her hand came into contact with sulphuric acid and was burned.

56. Hydrogen is a product of the reaction between zinc and sulphuric acid.

57. The order of the pretreatmemt effectiveness is lignin - activating agent, chelating agent, xylanase and sulphuric acid.

58. The pieces were then thrown into a barrel of sulphuric acid.

59. The process condition of preparing amyl alcohol with C5 fraction as material, through sulphuric acid addition hydrolyzation was studied.

60. Concentrated sulphuric acid was developed to etch the banded texture of thermotropic main chain liquid crystalline copolyester B-N, showing excellent selectivity for this nematic texture.

61. Sulphuric acid acid recovery of 60 %, effective use of energy and reduce the cost of acid.

62. Structure, installation and operation of a LD30 electrostatic precipitator in a sulphuric acid plant based on gold smelter off-gas are described.

63. XDS stainless steel sheet for high-temperature concentrated sulphuric acid was developed by comprehensive improvement research on the basis of theory of alloy design.

64. The causes of dew point corrosion in sulphur burning sulphuric acid plants are analyzed.

65. The absorption of trioxide in water to give sulphuric acid.

66. The feature of H_2S-bearing acid gas from petroleum refinery and difference from other materials that produces sulphuric acid are discussed.

67. We make superphosphate by reacting rock phosphate with sulphuric acid.

68. Titanium white powder is an important inorganic paint. Titanium white powder produced by the methods of sulphuric acid and chloride.

69. Introduce Na 2 CO 3 as the activating agent and sulphuric acid as the lixiviant.

70. The design and operation of the tail gas desulphurization system for a sulphuric acid plant based on copper off-gas are described.

71. Corrosion inhibition performances of several natural protein hydrolysates such as cottonseed cake, human hair(), gelatin and fish meal for A3 carbon steel in sulphuric acid medium were researched.

72. The gold in blister copper sample was pretreated with nitric acid- sulphuric acid to remove copper, digested with aqua, and determined by flame atom absorbance spectrometry.

73. In view of failure characteristics in sulphuric acid production, computer-based failure diagnosis system is designed for reducing failure and raising utilization rate of equipment and productiveness .

74. This paper describes the direct recovery of gold and silver from the thiourea and sulphuric acid eluate of the loaded resin elution by using electrowinning in the diaphragm electrolyzer.

75. The importance and necessity of safety assessment of sulphuric acid production enterprises are highlighted.