Chemical name: Nano active calcium carbonate Component: CCR Properties: white fine powder, particle surface is covered by active substances, for organic polymers with high dispersibility. Uses: Nano-active calcium carbonate is used as filler in rubber and plastics. The purpose of filling is to improve processing and reduce costs. Packing: Composite plastic woven bag 25KG/bag  

Index Item	CCR806	CCR805
Calcium carbonate content (%)	≥ 95.0	≥ 95.0
Average primary particle size (nm)	200-300	150, 200
Magnesium carbonate content (%)	<2.5	<2.5
Crystal form	cube, prism	cube, prism
Specific surface area (m2/g)	≥ 12	≥ 14
Oil absorption value g/100g	<26	<28
Moisture (%)	<0.4	<0.4
pH (HP)	8.5~10.5	8.5~10.5
Whiteness ≥(%)	95	95
Activation ( %)	94	95
Content of insoluble substances in hydrochloric acid % ≤	<0.3	<0.3
Surface treatment agent	Stearic acid + special agent	Stearic acid + special agent

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