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Calcium Carbonate for Food Preservative
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.
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
Item | HG/T2226-2000 | |||
Excellent |
First grade | Good |
Result | |
Calcium carbonate(%≥) | 98.0 | 97.0 | 96.0 | 98.5 |
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 | |||
