Chemical Name: Ultrafine Ground Calcium Carbonate

Molecular formula: CaCO₃

Property: White powder. Wide particle size distribution, high whiteness and low oil absorption value. Uses: Products are widely used in a variety of high-grade paint, paint, ink, paper and other industries.

Packing: Composite plastic woven bag, 25KG/bag
 

Index Item	GR-6000	GR-5000	GR-3500
CaCO3  %≥	98.0	98.0	98.0
SiO2  %≤	0.3	0.3	0.3
Specific surface area cm 3/ g	20000	18000	16000
D50 Particle size μ m	1.50	2.00	2.50
D97 Particle size μ m	3.0	4.0	5.0
Iron Fe content %≤	0.02	0.02	0.02
True specific gravity t/m3	2.7	2.7	2.7
Apparent specific gravity t/m3	0.50	0.60	0.70
Oil absorption ml/100g	30	28	26
Content of insoluble substances in hydrochloric acid %≤	0.2	0.2	0.2
PH Value >	8-9	8-9.5	8-10
Moisture % ≤	0.3	0.3	0.3
Whiteness ≥	96	96	95.5

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