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Pigment

CHROME OXIDE GREEN

Formula:Cr2O3
Molecular weight: 151.99
CAS No.: 1308-38-9
Color index: pigment green 17
Melting Point: 2435℃
Boiling point: 3000℃
Specific gravity: 5.21 g/ml.

Character: Green powder with strong coloring strength and covering strength.

Usage: Pigment,paint,glass,building ceramic colorants,printing-ink,chrome plating,chromium metal production,fire-proof materials,etc.  

Package: In bags of 25kg net each.

According to different purposes of chrome oxide green and the different technologies, Our chrome oxide green has already formed the series product grade.

Chrome oxide green pigment grade

Items

Pigment Grade

GN

GM

GX

Cr2O3%

98.0

99.0

70.0

Moisture%

0.30

0.2

0.50

Water soluble matter%

0.3

0.3

0.8

PH Value%

6-8

5-8

Oil absorption

15-20 g/100g

15-25g/100g

18-25g/100g

Hexavalent Chrome

5-10ppm

5-8ppm

10ppm

Tint

△E≤0.10

Coloring Strength

As Standard

Residue(45μm)%

0

0.1

0.1

Full Shade


Chrome oxide green abrasive grade

Items Abrasive Grade
Cr2O3% 99.0
Moisture% 0.20
Water soluble matter% 0.2
L.O.I 750 0 0.2
PH Value 6-8
Residue(25m)% 0.1

Chrome oxide green ceramics grade 

According to different producing temperature, our chrome oxide green ceramics grade is divided into A and B two grades.
Items Ceramics Grade A Ceramics Grade B
Cr2O3% 99.0 99.0
Moisture% 0.20 0.1
Water soluble matter% 0.2 0.2
To Calcine Temperature 900 1200
Residue(45m)% 0.2 0.2

Chrome oxide green low hexavanlent chrome grade

Items Low Hexavanlent Chrome Grade
Cr2O3 % 99.0
Moisture% 0.20
Water soluble matter% 0.2
Hexavalent Chrome 0-5ppm
Oil absorption 15-20 g/100g
PH Value 6-8
Residue(45m)% 0.2

Chrome oxide green metallurgical grade 

Items Metallurgical Grade
Cr2O3% 99.0
L.O.I 750 0.20
Fe2O3% 0.03
SO4% 0.40
C% 0.03
SiO2% 0.03
Mn% 0.01
Ni% 0.01
P% 0.0005
Co% 0.01
Moisture% 0.20
Water soluble matter% 0.2
CrO3% 0.00

Chrome oxide green refractory grade

Items Refractory Grade A Refractory Grade B
Cr2O3% 99.0 95.0
Moisture% 0.20 0.2
Water soluble matter% 0.2 0.3
Residue(45m)% 0.2 0.5

 

 


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