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.
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