A Calcium carbonate buyers from all over the world

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   Applications: 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.   Properties:

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