Synonyms: Potash, Sal tartari and Salt of sartar
Structure Formula: K2CO3
Molecular Weight.: 138.20
Character : white powder or granule. Easily deliquesced when exposed in air. Dissolve easily in water, not dissolved in ethanol and ether.
Analytical standard: according to GB/T1587-2000 standard.
Specifications :
Index name
|
Index
Value |
|||
Premium
grade |
first
grade |
Qualified
grade |
Color-
grade |
|
Assay 鈮?div> |
99.0% |
98.5% |
96.0% |
99.0% |
Chlorides as KCl 鈮縭
|
0.01% |
0.10% |
0.20% |
0.03% |
Sulphates as
K2SO4??鈮縭
|
0.01% |
0.10% |
0.15% |
0.04% |
Ferrum as
Fe |
0.001% |
0.003% |
0.010% |
0.001% |
Water insolubles??鈮縭
|
0.02% |
0.05% |
0.10% |
0.04% |
Loss after burning??
鈮?div> |
0.60% |
1.00% |
1.00% |
0.80% |