Calcium carbonate/ Lime stone/ Chalk Powder

size: 250-300mesh 800mesh 1250mesh hardness:3 shape:grain powder color:white and black Used in rubber plastic cable paint

Name:Calcium Carbonate

Specifications:

item of indexes	index
	400	600	800	1200
content of calcium carbonate       ≥	95	95	95	95
moisture           ≥	0.5	0.5	0.5	0.5
sieve residue      45um   ≤	75um1	75um 5	45um 1	45um 0.5
whiteness           ≥	O type	type	type	type
	94	92	90	85

Properties: white powder. Tasteless and odorless. The proportion of about 2.71. In the 825 ~ 896.6 º C decomposition. Melting point 1339 º C. Whether the two forms of amorphous and crystalline form, crystal shape can be divided into the orthorhombic and the hexagonal system, showing columnar or diamond-shaped. Difficult to dissolve in water and alcohol. Soluble in acid, while emitting carbon dioxide, showed exothermic reaction. Is also soluble in ammonium chloride solution. Stable in the air, there is slight moisture absorption capacity.

 

Usage:

1, 200 items: May use in each kind of feed additive calcareous quantity reaching 55.6 above not objectionable constituents the

2, 250 items to 300 items: With makes the plastics plant, the rubber factory, the coating factory, waterproof store depot raw material and the inside and outside walls whitewashes. Albedo above 85 degrees.

3, 350 items to 400 items: Uses in making buckles the board, falls in the water the pipeline, the chemical industry. Albedo above 93 degrees.

4, 400 items to 600 items: May use in the toothpaste paste body, the soap. Albedo in 94 degree above

5, 800 items: Uses in the rubber, the plastic, the electric cable, the pvc albedo in 94 degree above the

6, 1250 items: pvc, PE, the paint, the coating level product, the papermaking bottom spreads, the papermaking surface spreads, albedo above 95 degrees. Has, the high albedo, non-toxic, the odourlessness, the thin oil material to be low high-purity, degree of hardness is low.