TEST ITEMS

SPECIFICATION

Appearance

White powder

Assay , %≥

99.5

Moisture%≤

0.3

Melting point, °C≥

286.0

Sulphate , %≤

0.01

Heavy metals(Pb),(ppm)≤

10

As ,(ppm)≤

3

Ash ,%≤

0.05

Color, HAZEN≤

15