Product description (HCl)

Hydrochloric acid chem. pure 38 % is a clear, colorless liquid having a pungent odor and a hydrogen chloride content of at least 37 %.

Chemical name	Hydrochloric acid,
	aqueous hydrogen chloride,
	hydrogen chloride solution
Chemical nature	Solution of hydrogen chloride in water
Trade name	Hydrochloric acid chem. pure 38 %
Ingredient	Hydrogen chloride
Chemical formula	HCl
Relative molar mass	36.46 g / mol
CAS No.	7647-01-0
EINECS No.	231-595-7
INDEX No.	017-002-01-X (for Hydrochloric acid)
	017-002-00-2 (for Hydrogen chloride)

Form supplied and packaging

Supplied in rubber-coated railroad tank cars and tank trucks. Marketing only within Europe.

Properties

At concentrations of over 35 % Hydrochloric acid give of fumes and have a pungent odor on contact with atmospheric moisture when exposed to air. Miscible in all proportions with water.

	Hydrochloric acid chem. pure 38%
Crystallization temperature	approx. - 28 °C
Initial boiling point	approx. 60 °C (36%(m))
	approx. 40 °C (38%(m))
Vapor pressure (20 °C)	140-285 mbar
Density (20 °C)	1,175 - 1,19 g / ml
pH	< 1
Viscosity (25 °C)	approx. 2 mPa x s

Product specification

Specification of hydrochloric acid chem. pure 38%.

Certificate

Certificate DIN EN ISO 9001:2000

Storage

Storage areas for hydrochloric acid grades must be cool and capable of being well ventilated. Tanks which are rubber-coated, clad with plastics resistant to hydrochloric acid or provided with a nonporous coating and tanks made of plastic are suitable for storage.

Applications

Chemical and pharmaceutical industries, industrial chemicals sector: In the production of chemicals and intermediates; for analytical purposes; for the digestion of bleaching earths and clays; for the production of bone glues and acidic cleaning agents; for regeneration of ion exchangers.
Synthetic fibers industry: As an additive in precipitation baths for cuprammonium hydroxide filament yarn; for the acidification of cellulose after bleaching.

Leather industry: For to remove the lime and pickling.
Metalworking industry: For scouring and descaling metals.

Safety

Corrosive.
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.

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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

Packaging/ Delivery

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

Properties

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

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Дата добавления: 2015-10-31