Products

 

Industrial light Calcium carbonate

 

Chemical name: Precipitated Calcium carbonate

Molecular formula: CaCO₃

Properties: White powder, tasteless and odorless, non-toxic, light, air stable, slightly hygroscopic.

Uses: Precipitated Calcium carbonate is the most popular inorganic pigment, is widely used in rubber, paper, plastic, adhesive, paint, ink, daily necessities, cosmetics, drugs and feed.

Packing: Composite plastic woven bag, 25KG/bag              

 

Index Item		HG/T 2226-2010
		For rubber and plastics		For coating		For papermaking
		Top grade	First grade	Top grade	First grade	Top grade	First grade
Calcium carbonate(CaCO3) % ≥		98	97	98	97	98	97
PH value		9-10	9-10.5	9-10	9-10.5	9-10	9-10.5
Volatile below 105°C % ≤		0.4	0.5	0.4	0.6	1.0
Insoluble matter in hydrochloric acid % ≤		0.1	0.2	0.1	0.2	0.1	0.2
Sedimentation volume ml/g ≥		2.8	2.4	2.8	2.6	2.8	2.6
Fe % ≤		0.05	0.08	0.05	0.08	0.05	0.08
Mn % ≤		0.005	0.008	0.006	0.008	0.006	0.008
Residue on sieve	125μm Test sieve% ≤	all pass	0.005	all pass	0.005	all pass	0.005
	45μm Test sieve% ≤	0.2	0.4	0.2	0.4	0.2	0.4
Whiteness ≥		94	92	95	93	94	92
Oil absorption (g/100) ≤		80	100	--	--	--	--
Black spots ≤		5