China Clay / Kaolin

Thar Mines is the top most manufacturer and exporter of China Clay / Kaolin Clay in Indian Market as well as Abroad. We have very good quality of material in our mines with perfect chemical and physical property. We have highest natural whiteness material in our mines and proper gradation during mining activity (We never compromise in quality). Mainly, we process Crude China Clay in our washing plant to make levigated China Clay or industrial clay. We export our minerals to Bahrain, Bangladesh, Belgium, China, Germany, Italy, Saudi Arabia, United Arab Emirates, Spain and many more.

China Clay / Kaolin Lumps

Typical Chemical Analysis
SiO2	44-60%
CaO	< 1%
Al2O3	28-39%
K2O	< 1.5%
Fe2O3	< 1.5%
Na2O	0.5 - 1.5%
Ti2	< 1%
MgO	< 0.5%

Typical Physical Analysis
Loss of Ignition	9-12%
Moisture	0.5-15%
Shrinkage	9-14%
Dry M.O.R kg/cm2	22-28
Fired M.O.R kg/cm	220-600
Water Of Plasticity	35%
T.D.S	526
L Value	85-95
Whiteness	65-90%

LAVIGATED CHINA CLAY / KAOLIN

Typical Chemical Analysis
SiO2	45-51%
CaO	Trace
Al2O3	33-40%
K2O	0.03-0.30%
Fe2O3	0.20-1.50%
Na2O	0.03-0.20%
Ti2	1%
MgO	0.09-0.30%

Typical Physical Analysis
Loss of Ignition	10-14%
Shrinkage	8-14%
Dry M.O.R kg/cm2	20-30
Fired M.O.R Kg/cm3	200-600
Residue on 240#	0.2-11
Water Of Plasticity	36-46%
Water Absorption	15
L Value	85-96
a Value	0.4-1.8
b Value	3.3-12
Firing Whiteness	63-92%
Firing Colour	White to cremish

Hydrous Kaolin Powder

Typical Chemical Analysis
SiO2	> 82 ± 2%
CaO	Nil
Al2O3	> 82 ± 2%
K2O	Nil
Fe2O3	< 1.5%
Na2O	Nil
Ti2	< 1.5%
MgO	Nil
Alkaline Impurities	< 0.5%

Typical Physical Analysis
Loss of Ignition	14 ± 1%
Mean particle size (D50)	1.2µ
Residue (> 45 micron)	0.08%
Reflectance	82% (white in colour)
Brightness	80 ± 1
Firing Brightness at 12000C	36-46%
pH Value	6 to 7
Gravity of kaolin mineral	2.60
Flow Point	70 - 85
Mohs hardness	2.0 2.5
Moisture content	35 - 45

Silent Features

Excellent Opacity

Suspension Agent

Viscosity Enhancer

Anti-Caking Agent

Scrub Resistance

Enamel Holdout

Calcined Kaolin Powder

Typical Chemical Analysis
SiO2	> 96 ± 2%
CaO	Nil
Al2O3	> 96 ± 2%
K2O	Nil
Fe2O3	< 1.5%
Na2O	Nil
Ti2	< 1.5%
MgO	Nil
Alkaline Impurities	< 0.5%

Typical Physical Analysis
Loss of Ignition	1%	Bulk Density (gm/ltr)	300 to 340
Mean particle size (D50)	1.2µ	Surface Area BET (M2/gm)	11 - 13
Residue (> 45 micron)	0.02%	Water Absorption	75 - 90
Reflectance	92% (white in colour)	Oil absorption of powder (gm/100gm)	55 - 65
Brightness	92 ± 1	Flow Point	70 - 85
Paint drawdown Brightness	82 - 84	Mohs hardness	2.0 - 2.5
Refractory Index	1.62	Moisture content	0.5%
Yellow Index	2.2 to 2.5
pH Value	5 to 7

Silent Features

Enamel Holdout

Free From Impurities

Unique Particle Size

Improving Brightness

Lower Finish Costs

Low Bulk Density

Applications

Ceramic

Paper

Paint

Pigments

Printing Ink

Rubber