Calcite

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Calcite is a natural form of calcium carbonate widely used in Plastics, Paints and Rubber as a filter due to its high dispersibility, low oil absorption, higher impact strength, smooth surface finish, easy processing and excellent dimensional stability.

Effects on properties of polymers:

Increase in flexuaral modules

Increase in dimensional stability reduces creep resistance

Increase in HDT

Lower melt viscosity

Improved electrical properties

Improved processing characteristics

Good dispersion

Excellent hiding power.

Recommended Applications:

PP compounding for furnitures, automobiles and home appliances

Antifabrilliant Masterbatches for PP and LDPE woven sack

Colour Masterbatches and other additive Masterbatches

PVC Cable compounding

Paints

Paper Coatings

Thermoset plastic

Vinyl floorings

PU foam (Flexible and Rigid)

Powder Coatings.

CALCITE SPECIFICATIONS

APPEARANCE	FINE WHITE POWDER
CALCIUM CARBONATE CONTENT	96.0 - 97.0 %
MAGNESIA as MgO	0.4 - 0.6 %
SILICA as SiO2	0.4 - 0.6 %
pH	9.0 - 10.5 %
SOLUBLE ALKALI as Na2O	0.10 - 0.20 %
SULPHATE as SO4	0.20 - 0.40 %
STEARATE COATING	3 %
BULK DENSITY ( as per IS:918-1985 )	0.50 - 0.62 Gram / CC
FINENESS ( MATERIAL PASSING 200 mesh BSS )	99.8 %
MOISTURE ( LOSS ON DRYING AT 110o C )	0.8 % Maximum
AVERAGE PARTICLE SIZE	3 - 6 Microns
D.O.P. ABSORPTION	44 - 54 %
WATER PROOFING	98 - 100 %

CALCITE SPECIFICATIONS

Grade	Bulk Density	Average Particle Size (Microns)	Oil Absorption V / W D. O. P.	V / W Linseed	Specific Gravity	2.60 - 2.70
F	0.37 - 0.43 Gram / CC	4 - 7	74 - 80 %	42 - 50 %	Solution in 5 N.HCL	Clear
H	0.48 - 0.57 Gram / CC	8 - 10	70 - 74 %	36 - 40 %	Fineness	99.8 %
L	0.67 - 0.83 Gram / CC	10 - 13	42 - 46 %	26 - 30 %	Moisture	0.5 - 0.8 %
M	0.83 - 0.95 Gram / CC	13 - 15	45 - 48 %	34 - 38 %	-	-

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