Specifications | |
---|---|
Assay (alkalimetric) | ≥ 85.0 % |
Identity | passes test |
Appearance of solution | passes test |
Colour | ≤ 10 Hazen |
Chloride (Cl) | ≤ 2 ppm |
Fluoride (F) | ≤ 1 ppm |
Nitrate (NO₃) | ≤ 3 ppm |
Phosphite and Hypophosphite (as H₃PO₃) | ≤ 20 ppm |
Hypophosphite, phosphite | passes test |
Heavy metals (as Pb) | ≤ 10 ppm |
Sulphate (SO₄) | ≤ 20 ppm |
As (Arsenic) | ≤ 0.5 ppm |
Ca (Calcium) | ≤ 20 ppm |
Cd (Cadmium) | ≤ 0.5 ppm |
Co (Cobalt) | ≤ 0.5 ppm |
Cu (Copper) | ≤ 0.5 ppm |
Fe (Iron) | ≤ 10 ppm |
K (Potassium) | ≤ 5 ppm |
Mg (Magnesium) | ≤ 5 ppm |
Mn (Manganese) | ≤ 0.5 ppm |
Na (Sodium) | ≤ 200 ppm |
Ni (Nickel) | ≤ 1.0 ppm |
Pb (Lead) | ≤ 0.5 ppm |
Sb (Antimony) | ≤ 5 ppm |
Zn (Zinc) | ≤ 2 ppm |
Matter precipitated by ammonia | passes test |
Volatile acids (as Acetic acid) | ≤ 10 ppm |
Substances reducing potassium permanganate (as O) | ≤ 10 ppm |
Insoluble matter | ≤ 10 ppm |