Hydrochloric Acid

Also known as muriatic acid, Hydrochloric acid is an aqueous solution of Hydrogen Chloride gas. Produced from the chlorination of organic chemicals, it is a colorless liquid used in many different applications such as the production of chlorides, ore processing, food manufacturing and production of metals like tantalum and tin. It is a strong acid and often used in the neutralization of a basic system.

Industrial Applications of Hydrochloric Acid

  • Hydrochloric acid is used in the production of organic compounds like dichloroethane and vinyl chloride.
  • It is also used as a popular commercial cleaning agent because of its chemical strength.
  • Hydrochloric acid is used to make swimming pool pH levels safe for swimmers to bathe in since the pH levels of swimming pools are often high.
  • Not just organic compounds, it is used in the manufacturing of inorganic compounds using normal acid-base reactions such as with iron chloride and poly-aluminum chloride.
  • Ion exchange resins are regenerated using high-quality hydrochloric acid since it is highly efficient and does not cause precipitation in the resin bed.
  • HCl acid is used in the process called oil well acidization which involves injecting the acid into cavities of oil wells to dissolve any rocks and leaving an empty column behind to produce oil.
  • The food industry uses hydrochloric acid in the various stages of food processing. Besides used for a variety of products by the food industry, a major use of hydrochloric acid is for the production of corn syrups such as high-fructose corn syrup (HFCS) which majorly drives the soft drinks market.

Product Description

  • Hydrochloric Acid is a strong acid and is a colorless to yellow liquid, with a pungent odor.
  • Molecular Weight: 36, 47
  • EC Number: (EINECS) 231-595-7
  • UN Number: 1789
  • CAS Number: 7647-01-0
S. No. Characteristics Requirement as per IS 265 : 1991 Average Quality
1 Total Acidity (as HCl) Percent by mass, min 30.0 30.0
2 Residue on Ignition, ppm, max 1000 100
3 Sulphates (as H2SO4) ppm, max. 1000 200
4 Iron (as Fe) ppm, max 50.0 1.0
5 Free Chlorine and Bromine (as - HCl) ppm, max 10 10
6 Sulphites (as SO2) ppm, max. 500 50
7 Heavy Metals (as Pb) ppm, max --- N.D.
8 Arsenic (as As) ppm, max --- N.D.
9 Ammonium Compounds (as NH4) --- N.D.

Note: N.D. = Not Detectable

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