Hydrochloric Acid

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General Info

Hydrochloric acid, also known as muriatic acid is an aqueous solution of hydrogen chloride (HCl(g)). It is colorless to slighltly yellowish solution with a distinctive pungent smell. It is classified as a strong acid. It is a component of the gastric acid in the digestive systems of most animals including humans. It is an important industrial chemical. It is produced by reacting hydrogen and chlorine.

Shelf Life: Longer life is expected if properly stored in air tight vessel.

Identification / Specification

Identification

Chemical Name Hydrochloric Acid
Chemical Formula HCl
Molecular Weight 36.46
CAS No. 7647-01-0

Specification

Parameters Average Chemical Analysis
Physical appearance Colorless to pale yellow transparent liquid with a sharp pungent and irritating odor.
Concentration (HCl) 34 ± 1 %
Available Chlorine 5 ppm max.
Iron 0.0005% max.
Mercury Nil
Specific gravity at @25°C 1.164 – 1.174

Application

HCl acid is used in the preparation of metal chlorides. It is used in pickling of steel.
In ferrous and non-ferrous metallurgies for removal of oxide film from the metal surface, in metal leaching of ores. In other industries for boilers cleaning and chemical water treatment not related to potable water supply. Hydrochloric acid is used in the production of dyes, drugs, paints, etc. It is used for the production of glucose from starch. It is used for the extraction of glue from bones. It is used as a laboratory reagent.

Packing and Storage

  • It is transported in Rubber lined MS and FPR tankers.
  • It is also supplied in 210 kg HEDP drums and 35 kg carboys

Handling and Safety Instruction

  • Wear personal protective equipment (PPEs).
  • Use only in well ventilated areas.
  • Provide suffucient air exchange and/or exhaust in work rooms.
  • Avoid contact with skin, eyes and clothing.
  • Do not breathe vapors or mist. Do not ingest.
  • Avoid eating, drinking and smoking in storage and handling areas.
  • Keep away from incompatible materials.
  • Use caution when combining with water.
  • DO NOT add water to acid.
  • ALWAYS add acid to water while stirring to prevent release of heat, steam and fumes.
  • Store in a cool, dry, ventilated area away from incompatible materials. If inhaled remove to fresh air, administer oxygen if breathing is difficult.
  • Do not induce vomiting in case of ingestion, Get medical atention. If skin and eyes are affected flush with plenty of water for at least 15 minutes.

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