Item

Specification

Results

Appearance Property

White Crystalline Powder

White Crystalline Powder

Assay,%           min

99.0

99.52

Melting Point,

152-155

153.5-153.9

Loss on Drying,%      max

0.5

0.18

Residue on Ignition,%   max

0.1

0.04

Chlorides (AS Cl),%  max

0.005

0.003

Heavy Metals(as Pb)%  max

0.001

0.0004

Iron(AS Pb),%   max

0.001

0.0004

Arsenic (as Fe),%    max

0.0001

0.00003

Microbiological Test

Bacteria 3000cfu/g    max

Eumycetes  50cfu/g  max

Coliform Group Negative

Accord with demand

Conclusion

Up to grade