SUBJECT

Characters

White Crystals

specification

30-100mesh

Identification

Passes test

Clarity and color of solution

Clear and colourless

Acidity or Alkalinity

Passes test

Tartrate

Passes test

Chlorides

50 ppm max

Sulphates

150 ppm max

Oxalates

100 ppm max

Heavy metal(as Pb)

5 ppm max

Lead

1 ppm max

Readily carbonisable substances

Not deeper than standard

Pyrogens

Passes test

Loss on drying

11.0-13.0%

Arsenic

1ppm max

Mercury

1ppm max

PH 5%aqua solution

7.5-9.0

Purity

99.0-101.0