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Clays / Weighting Materials
Calcium Carbonate
PRODUCT DESCRIPTION
Calcium Carbonate purity 98%
Whiteness 93%min
white powder
It is good at painting,cable,paper,rubber industrial and so on.
Calcium Carbonate
Physical and chemical properties:
Molecular formula: CACO3
Molecular weight: 100.09
Density: 2.70-2.95
White crystal or powder
Its difficult solubilize in water and release CO2 in acid.
Method of manufacture:
Ca(OH)2+CO2=CaCO3+H2O
Ca(OH)2+Na2CO3=CaCO3+2NaOH
Use:
Used in made cement, ceramic, lime, CO2,chalk, artificial stone, and can be used as pigment, filler, mixture medium, rub agent, sugar clarifying agent; also it can be used as filler of rubberplastic; as feed additives, vector of veterinary drugs.
In medicine, it can be used to made acid drugs.
Item: precipitate light-CACO3 325mesh
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Item |
HG/T2226-2000 |
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Excellent |
First grade |
Good |
Result |
|
|
Calcium carbonate(%≥) |
98.0 |
97.0 |
96.0 |
98.5 |
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Hydrochloric acid can not be objects (%≤) |
0.10 |
0.20 |
0.30 |
0.20 |
|
Fe (%≤) |
0.08 |
0.10 |
0.12 |
0.08 |
|
Mn (%≤) |
0.006 |
0.008 |
0.010 |
0.006 |
|
Heavy metal total (%≤) |
20 |
20 |
20 |
pass |
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PHPH value |
9.0-10.0 |
9.0-10.5 |
9.0-11.0 |
10.5 |
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Whiteness ≥ |
90.0 |
90.0 |
90.0 |
92.7 |
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Appearance |
White powder |
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