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Calcium Carbonate 98%min?
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.
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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.
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? Item | HG/T2226-2000 | |||
? Excellent | ? First grade | Good | ? Result | |
Calcium carbonate(%≥) | 99.0 | 97.0 | 96.0 | 99.5 |
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 |
PHPH value | 9.0-10.0 | 9.0-10.5 | 9.0-11.0 | 10.5 |
Whiteness ≥ | 90.0 | 90.0 | 90.0 | 92.7 |
Appearance | White powder | |||
Lingshou County Zhongrun Minerals Co., Ltd. was established in 2008 as a professional Manufacturer&Exporter to provide various mineral and chemicals products,including vermiculite,mica,perlite,calcium carbonate,color sand etc.
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