Heavy calcium carbonate selects high quality pure white calcite as raw material by selecting, laundering, air seasoning, thickly broken, broken, attrition and micro graduation of strict working instruction and the examination standard. The product has high albedo, even pellet distribution and narrow grain-size distribution widely applied in plastic, rubber, glass, building materials, chemical industry, feed, coating, papermaking, food, medicine, electric power insulation, asphalt and linoleum. Industries.
Property：
White powder, odourlessness, tasteless, no change exposed to the air, not dissolve in the water, dissolve in in the water containing ammonium salt or carbon dioxide water, not dissolve in alcohol, ebullition and dissolve meets diluted acetic acid, diluted hydrochloric acid and diluted nitric acid, thermal decomposition of calcium oxide and carbon dioxide.
Specification：
| Index name |
index |
| |
Single |
Double |
Three |
Four |
Content（CaCO3）% ≥
|
95 |
95 |
95 |
95 |
Nickelic oxide %≤
|
0.1 |
0.1 |
0.1 |
0.1 |
| Hydrochloride
insolubles%≤
|
0.5 |
0.5 |
0.5 |
0.5 |
Mesh number
net throughput ≥%
|
200
95 |
325
99 |
325
99.9 |
400
99.95 |
|
