Items

Specification

Pigment Grade

Griding Grade

Premium grade

First grade

Salable product

Premium grade

First grade

Salable product

Cr2O3 % ≥

99.0

98.0

97.0

99.0

98.0

97.0

Moisture% ≤

0.15

0.30

0.50

0.15

0.30

0.50

Water soluble matter % ≤

0.1

0.4

0.7

0.2

0.4

0.7

PH Value %

6-8

5-8

/

Oil absorption

15-25g/100g

≤ 20

25g/100g

Tint

As Standard

/

Coloring Strength

As Standard

/

Residue (45um) % ≤

0.1

0.3

0.5

0.3

0.5

75um0.5

The standard of coloring strength and tint can be talked over between manufacturer and consume