Specifications
|
Item
|
Specification for Fine Grade
|
Specification for Technical Grade
|
Specification for First Grade
|
Specification for Regular Grade
|
Purity(K2CO3)
|
≥99%
|
≥99%
|
≥98.5%
|
≥96%
|
|
KCL
|
≤0.003%
|
≤0.01%
|
≤0.03%
|
≤0.1%
|
|
K2SO4
|
≤0.002%
|
≤0.01%
|
≤0.1%
|
≤0.15%
|
|
Iron(Fe)
|
≤0.0005%
|
≤0.0002%
|
≤0.001%
|
≤0.003%
|
|
Water insoluble
|
≤0.005%
|
≤0.03%
|
≤0.02%
|
≤0.05%
|
|
Burnt Loss
|
≤0.6%
|
≤0.8%
|
≤1.0%
|
≤1.0%
|
INSPECT ION ITEM |
UNIT |
FINE GRADE |
TV GLASS GRADE |
FIRST GRADE |
REGULAR GRADE |
Purity(as K 2 CO 3 ) |
% Min |
99.0 |
99.0 |
98.5 |
96.0 |
Chloride(as KCl) |
% Max |
0.01 |
0.03 |
0.10 |
0.20 |
Sulphate(as K 2 SO 4 ) |
% Max |
0.01 |
0.04 |
0.10 |
0.15 |
Iron |
% Max |
0.001 |
0.001 |
0.003 |
0.010 |
nsoluble matter in water |
% Max |
0.02 |
0.04 |
0.05 |
0.10 |
Burnt loss |
% Max |
0.6 |
0.8 |
1.00 |
1.00 |