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Appendix 1

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)


F orm supplied and packaging

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

P roperties

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


P roduct specification

Specification of hydrochloric acid chem. pure 38%.

C ertificate

Certificate DIN EN ISO 9001:2000

S torage

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.

A pplications

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.

S afety

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.

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

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