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« 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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