Items

Specification

Premium grade

First grade

Salable product

 Purity ( K₂Cr₂O₇ ) ≥

99.7

99.5

99.0

Chloride (Cl) % ≤

0.050

0.050

0.080

Water insoluble matter % ≤

0.020

0.020

0.050

Sulphate (SO₄^2- ) % ≤

0.020

0.050

-

 Moisture  % ≤

0.030

0.030

-