Customization: | Available |
---|---|
CAS No.: | 584-08-7 |
Formula: | K2co3 |
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Molecular Formula: | K2CO3 |
CAS No.: | 584-08-7 |
EINECS No.: | 209-529-3 |
Grade Standard: | Industrial Grade |
Appearance: | White crystalline powder |
Purity: | 99%MIN |
Solubleness: | Slightly Soluble Alkali |
port | TIANJIN |
Packing: | 25kg, 40kg, 50kg, 750kg, 1000kg/ Bag |
Package | Plastic Woven Bag /Customized package |
HS Code: | 28364000 |
Characteristics | Unit | Standard Request | Test Method |
Appearance | White powder | Q/ZWW003-2009 | |
Surface Water | % (w/w) | 1 Max | Q/ZWW003-2009 |
ZnO | % (w/w) | 37.0-40.0 | Q/ZWW003-2009 |
B2O3 | % (w/w) | 45.0-48.0 | Q/ZWW003-2009 |
Pb | ppm | 10 Max | Q/ZWW003-2009 |
Loss at ignition | % (w/w) | 13.0-15.5 | Q/ZWW003-2009 |
Cd | ppm | 5 | Q/ZWW003-2009 |
Whiteness | 95 Min | Q/ZWW003-2009 | |
Fineness (Residue on 325 sieve) | % (w/w) | 0.1 Max | Q/ZWW003-2009 |
Melting Point | ºC | 980 | Q/ZWW003-2009 |
Temperature of Dehydration | ºC | 290 | Q/ZWW003-2009 |
Refractive Index | 1.58 | Q/ZWW003-2009 | |
Particle Size | um | 1-3 | Q/ZWW003-2009 |
Items
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Index
|
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Prime Grade
|
First Grade
|
Qualified
|
|
K2CO3 (after ignited ) % >=
|
99.0
|
99.0
|
98.5
|
Chloride ( kcl count) % <=
|
0.01
|
0.03
|
0.20
|
Sulfur compound (k2so4 count )% <=
|
0.01
|
0.04
|
0.15
|
Fe % <=
|
0.001
|
0.002
|
0.004
|
Water Insoluble% <=
|
0.02
|
0.03
|
0.05
|
Ignition loss% <=
|
0.60
|
0.80
|
1.00
|
Grain size (1.40 mm residue on sieve)% <=
|
1.0
|
1.0
|
1.0
|
(0.18 mm) residue on sieve % >=
|
90.0
|
85.0
|
85.0
|
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