Calcium Carbonate

Grades	D(50)	D(97)
Super-C-Sp	1.2(+/-) 0.2 Microns	8.2 (+/-) 1 Microns
Super-C1	1.4(+/-) 0.2 Microns	9.5 (+/-) 1 Microns
Super-C2	1.6(+/-) 0.3 Microns	10.5 (+/-) 1 Microns
Super-C3	2.2(+/-) 0.3 Microns	16 (+/-) 1 Microns

Chemical Properties (On Dry Basis)
Calcium Carbonate	CaCO3	>= 98.50 %
Magnesium Oxide	MgO	<= 0.20 %
Silicon Dioxide (Silica)	SiO2	<= 0.10 %
Ferric Oxide	Fe2O3	<= 0.01 %
Aluminium Oxide (Alumina)	Al2O3	<= 0.01 %

Physical properties
Oil Absorption	23 g / 100g CaCO3
Whiteness - (MINOLTA - Japan)	98 (+/-) 1
Brightness - (MINOLTA - Japan)	96 (+/-) 1
PH Value	8 (+/-) 1
Sp. Gravity	2.7
Hardness	3 MOH
Moisture	0.10%
Acid Insoluble	0.3 % Max.

Homogeneous Coating By Hosokawa, Germany
Stearic Acid Percent	1.20%
Coated Surface	100%

Uncoated Calcium Carbonate

Grades	D(50)	D(97)
Super-U2	1.3(+/-) 0.2 Microns	10.5 (+/-) 1 Microns
Super-U3	2.2(+/-) 0.2 Microns	16 (+/-) 1 Microns
Super-U4	2.8(+/-) 0.3 Microns	18 (+/-) 1 Microns

Chemical Properties (On Dry Basis)
Calcium Carbonate	CaCO3	>= 98.50 %
Magnesium Oxide	MgO	<= 0.20 %
Silicon Dioxide (Silica)	SiO2	<= 0.10 %
Ferric Oxide	Fe2O3	<= 0.01 %
Aluminium Oxide (Alumina)	Al2O3	<= 0.01 %

Physical properties
Oil Absorption	23 g / 100g CaCO3
Whiteness - (MINOLTA - Japan)	98 (+/-) 1
Brightness - (MINOLTA - Japan)	96 (+/-) 1
PH Value	8 (+/-) 1
Sp. Gravity	2.7
Hardness	3 MOH
Moisture	0.10%
Acid Insoluble	0.3 % Max.

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