Specifications - Zinc Sulphate Hepta 21%

SR.No TEST SPECIFICATION RESULT REMARKS
1 DESCRIPTION White or almost White, Crystal White or almost White, Crystal Complies
2 INSOLUBILITY Insoluble in water (1%) Complies Complies
3 IDENTIFICATION Solution gives the reaction of Zinc Sulphate Complies Complies
4 P H Not less than 4 4.8 Complies
5 ARSENIC Not more than 0.01% 0.003% Complies
6 LEAD Not more than 0.003% Complies Complies
7 ZINC CONTENT Min 21% 21.10% Complies
8 COBALT Not more than 0.2 ppm Complies Complies
9 COPPER Not more than 0.1% Complies Complies
10 CADMIUM Not more than 0.0025% Complies Complies
11 MAGNESIUM Not more than 0.5% Complies Complies
12 MERCURY Not more than 5 ppm Complies Complies
13 SULPHUR Min 10.50% Complies Complies
14 MANGANESE Not more than 0.5 ppm 30 ppm Complies
15 IRON Not more than 60 ppm 30 ppm Complies
16 CHLORIDE Not more than 100 ppm 50 ppm Complies
17 ALKALIES & ALKALINE EARTH Not more than 0.9 % Complies Complies
18 ASSAY NLT 99.00 % & NMT 100.5 % 99.1 % Complies
19 MESH SIZE 0 to 5 mm Complies Complies