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Appendix 2

Product description (H2SO4)

Colorless, nonflammable liquid. Sulfuric acid techn. 96 % and sulfure acid monohydrate have an oily consistency and are very hygroscopic. Production by oxidation of sulfur or by cleavage of contaminated sulfuric acids.

Chemical name

Sulfuric acid/ sulphuric acid,

 

sulfuric acid monohydrate/

 

sulphuric acid monohydrate

Trade names

Sulfuric acid techn. 75 %

 

Sulfuric acid techn. 96 %

 

Sulfuric acid monohydrate

Chemical formula

H2SO4

Molecular weight

98.08 g/mol

CAS-No.

7664-93-9

EINECS-No.

231-639-5

INDEX-No.

016-020-00-8


P ackaging/ Delivery

Transport by road tank truck, railroad tank car or ship. Marketed in Europe only.

P roperties

Sulfuric acid is a strong acid which is miscible with water in all proportions. On mixing with water a great deal of heat evolved which may cause splashing of the acid. For that reason sulfuric acid should be added to water only slowly with constant stirring and monitoring of the temperature. It has a dehydrating (desiccating) effect with carbonization on many organic substances.

 

Sulfuric acid techn. 75 %

Sulfuric acid techn. 96 %

Sulfuric acid monohydrate

Sulfuric acid content (g/ 100 g)

74 - 76

95,5 - 96,5

99 - 101

Melting point(°C)

-35 - -10

-25 - -15

ca. 10

Boiling point (°C, 1013 mbar)

165 - 170

300 - 320

315 - 250

Density (g/cm³, 20°C)

ca. 1,66

ca. 1,84

ca. 1,84

Viscosity (mPa x s, 20°C)

8 - 9

22 - 23

25 - 26


P roduct specifications

Specification sulfuric techn. 75 %, Specification sulfuric techn. 96 %, Specification sulfuric acid monohydrate.

S torage

Sulfuric acid techn. 75 % Sulfuric acid techn. 96 %: Store at temperatures above - 5 °C. Sulfuric acid monohydrate: Store at temperatures above +15 °C.

C ertificate

Certificate DIN EN ISO 9001:2000

A pplications

Sulfuric acid monohydrate Chemically pure sulfuric acid and sulfuric acid monohydrate: Chemical and pharmaceutical industries: For the manufacture of products requiring particularly pure starting materials and auxiliaries. For analytical purposes. Industrial chemicals Production of battery acid. Sulfuric acid techn. 75 % and Sulfuric acid techn. 96 % Fine chemicals: Production of phosphoric acid, phosphates, hydrogen chloride and hydrochloric acid; in the production of dyes and plastics; sulfonation and as an auxiliary in many syntheses, e.g. nitration reactions; production of hydrogen peroxide and other peroxides. Industrial chemicals: In the production of explosives (nitration of glycerin, cellulose, toluene inter alia), production fuller's earth; in the production of gelatin and glue, and isolation of casein purification of gases in gas-making and coking plants. In soap production for the preliminary purification of the oil to be used for lipolysis. For the removal of fabric from rubber in recycling processes.

Leather industry: For pickling in chrome tanning. Metal-working industry: For scouring and descaling, and brass bright dip. Petroleum industry: For refining, purification of lubricants, paraffin and transformer oil, and alkylation of aliphatics. Paper and pulp industry: For parchmentizing, and acidification after alkaline pulping. Textile industry: Removal of dyes from recycled wool. Carbonization of wool. Textile dyeing: As additive when dyeing with chrome and azo dyes. Ore dressing: Disaggregation of zinc and copper ores prior to wet processing.

S afety

Causes serve burns. During the handling of these products the data and reference in the safety data sheet are to be considered. In addition the necessary caution and good industrial hygiene while handling chemicals have to been kept.

http://www.inorganics.basf.com (05.04.2010)

UNIT 12

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