|
 Chrome Oxide Green
|
Formula:Cr2O3：
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.
Executing standards: HG／T2775-1996
|
|
|
Items
|
Specifications
|
|
Pigment
Grade
|
Grinding
Grade
|
|
A
|
B
|
C
|
A
|
B
|
C
|
|
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％≤
|
0.5
|
0.5
|
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(45μm)％≤
|
0.1
|
0.3
|
0.5
|
0.3
|
0.5
|
75μm 0.5
|
l
The standard of coloring strength and tint
can be discussed between manufacturer and consumer.
l
For
metallurgy grade / refractory grade, or other grade for special purpose, please contact us directly
--------------------------------------------------------------------------------------------------------------------
Chromic
Acid
|
|
Formual:CrO3
Character: Brownish red
flakes, soluble in water and ether, poisonous.
Usage: Electric-plating、polishing、chrome-metal
production、pigment、medicine、catalyst、oxidant、wood
preservation、raw-material of crome oxide, etc.
Package: in UN
approved iron drums of 50kg or 250kg net each.
Executing standards: GB1610-1999．
|
Items
|
Specifications
|
|
Grade A
|
Grade B
|
Grade C
|
|
Cr2O3％≥
|
99.7
|
99.5
|
99.0
|
|
Water insoluble matter％≤
|
0.02
|
0.05
|
0.10
|
|
Sulphates％≤
|
0.06
|
0.15
|
0.30
|
|
Na％≤
|
0.05
|
-
|
-
|
|
--------------------------------------------------------------------------------------------------------------------
Sodium
Bichromate
 Formula: Na2Cr2O7·2H2O
Character: Orange crystal grain, easy soluble in water, poisonous.
Usage: cromic acid production and other chrome production、pigment、tanning、oxidant、wood preservation、medicine、etc.
Package: in bags of 50kg or 25kg net each.
Executing
standards:GB1611-92
|
Items
|
Specifications
|
|
Grade
A
|
Grade
B
|
Grade
C
|
|
Purity％≥
|
99.3
|
98.3
|
98.0
|
|
Sulphates％≤
|
0.20
|
0.30
|
0.40
|
|
Cl％≤
|
0.10
|
0.10
|
0.20
|
--------------------------------------------------------------------------------------------------------------------
Basic Chrome Sulphate
|
|
Formula:Cr(OH)SO4
Character:Dark green
powder, easy soluble in water moisture
Usage: Catalyst、tanning、ceramic
colorants、dye、printing ink、etc.
Package: in bags of 50kg net each.
Executing standards: HG／T2678-95
|
Items
|
Specifications
|
|
Grade A
|
Grade B
|
|
Cr2O3 ％
|
24-26
|
21-23
|
|
Basicity ％
|
32-34
|
38-42
|
|
Fe％
|
0.1
|
0.1
|
|
Water Soluble matter％
|
0.1
|
0.1
|
|
|
