●Name:
Potassium carbonate; molecular formula K2CO3; relative molecular weight 138.21.
 ●Property:
monoclinic crystal; white powder, fine granulated crystal or round small ball; relative density 2.428; melting point 891℃; easily soluble in water and aqueous solution is acid; insoluble in alcohol and ether; it has strong hygroscopicity and transfer into potassium bicarbonate after long-term contact with air by absorbing carbon dioxide.
●Use:
It is raw material in the production of electronic tube, television kinescope and computer monitors. Optical glass produced with it has better transparency, strength and refractive index. It is also be used to produce welding electrode and current interruption could be avoided. It is also the raw material of food additive as potassium sorbate and monopotassium phosphate. It is composite fertilizer. Combined with soda ash, it can produced dry powder fire extinguishing agent. In addition, it is used in printing ink, polyester, explosive, electroplate, process hides, ceramics and pharmaceutical field.
●Specification: (GB/T1587-2000)
|
Index name |
Unit |
Color tube level |
top quality |
qualified |
|
content(K2CP3) |
%≥ |
99.0 |
98.5 |
96.0 |
|
chloride(in CI) |
%≤ |
0.03 |
0.10 |
0.20 |
|
sulfur compound(in K2SO4) |
%≤ |
0.04 |
0.10 |
0.15 |
|
Ferrum |
%≤ |
0.001 |
0.003 |
0.01 |
|
water insoluble |
%≤ |
0.04 |
0.05 |
0.10 |
|
loss on ignition |
%≤ |
0.80 |
1.00 |
1.00 |
|
heavy metal |
%≤ |
- |
- |
- |
|
arsenic |
%≤ |
- |
- |
- |
●Packing：
Outer textile bag or paper-plastic compound bag, inner plastic bag, net weight 25/50/1000KG.
●Storage：
It should be stored in ventilated and dry warehouse to avoid moisture. It should be away from acid materials. In transportation process, pay attention to rain to guarantee the package is not damaged and polluted. Be careful when handling put down. Please use water to put out fire.
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