Factory Price Powder Precipitated Food Grade CaCO3 Calcium Carbonate

Product Description

Product Description

Description of Calcium Carbonate:

Calcium carbonate is an inorganic compound with the chemical formula of CaCO3, commonly known as limestone, limestone, stone powder, etc. Calcium carbonate is alkaline, basically insoluble in water and soluble in hydrochloric acid. It is one of the common substances on the earth. It exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of some animal bones or shells. Calcium carbonate is also an important building material, which is widely used in industry.Calcium carbonate is an inorganic compound with the chemical formula of CaCO3, commonly known as limestone, limestone, stone powder, etc. Calcium carbonate is alkaline, basically insoluble in water and soluble in hydrochloric acid. It is one of the common substances on the earth. It exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks. It is also the main component of some animal bones or shells. Calcium carbonate is also an important building material, which is widely used in industry.

Main Characteristic of Calcium Carbonate:
Light calcium carbonate is amorphous powder, tasteless, odorless, slightly hygroscopic, stable in dry air, acid decomposition.
Heavy calcium carbonate is white powder, odorless and tasteless, stabilize in the air, almost insoluble water.

Specification

Specification of Calcium Carbonate:

Item HG/ 3249.2-2008			I type 3000m	II type 2500m	III type 2000m
caco3 w/%≥	class I	first class	98.0	96.0	96.0
		qualified	96.0	94.0	94.0
	class II	first class	96.5	95.0	95.0
		qualified	95.0	93.0	93.0
Fineness	D97/μm ≤		3.0	5.0	6.0
	D50/μm ≤		1.3	1.6	2.0
Whiteness	first class		97	97.0	96.0
	qualified		95.5	95.5	95.0
Specific surface area (cm2/g) ≥			23000	19500	18000
Oil absorption(ml/100g)	class I		30.0	30.0	25.0
	class II		25.0	23.0	22.0
Oil absorption(ml/100g)	first class		95.0	95.0	95.0
	qualified		93.0	93.0	93.0
105ºC volatile/% ≤			0.5	0.5	0.5
Lead(pb)W /% ≤			0.001	0.001	0.001
(Cr6+)W/% ≤			0.005	0.005	0.005
(Hg) W/% ≤			0.002	0.002	0.002
(As) W/% ≤			0.002	0.002	0.002
(Cd) W/% ≤			0.002	0.002	0.002

Application

Applications of Calcium Carbonate:

1. In rubber manufacture: Calcium carbonate was the earliest filler used in the rubber industry. It can enlarge the capacity in the rubber products, for saving the cost. It also enhance the tensile strength, abrasion and tearing strength.
2. Plastic manufacture: As the framwork in plastic products, keeping stablity of the  products, strengthen the products, keeing surface smoothly. Since the calcium carbonate is hight white, it can place the expensive the white ployethylene, for whitening the plastic products.
3. Paper making: Whitening the paper, and as the fller, can reducing the pulp, for saving the cost etc.

Package & Storage of Calcium Carbonate: 
25KG bag ,  
also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight

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