Ground calcium carbonate

Product: ground/heavy calcium carbonate

Product Introduction:

Natural heavy /ground calcium carbonate selects natural, high and white calcite as raw material, and processes through domestic advanced grinding equipment and importing sorting equipment. Its grain size is Identical，color is stable, and Dispersion is super fine. It is a all-purpose filler materials.

Main Applicantion:

Fillers of Paper ,Plastic, Rubber, Paint, Building material，etc.

Item	specifciations
Item	D30	D35	Pd35	Pd40
Caco3 content(dry basis) %≥	98	98	98	98
Loss on drying %≤	0.3	0.3	0.4	0.5
HCL Insoluble %≤	0.2	0.2	0.2	0.2
Whiteness %≥	92.5	93	93	94
Specific surface cm2/g	2000±500	5500±500	10800±500	11200±500
Particle ≤ 5μm	30	35	45-60	60-80
Residues of 32μm sieve (500mesh) %≤	0.5	0.2	0.1	0
DOP absorption ml/100g	38±5	40±5	42±5	46±5

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Ground calcium carbonate