| China
Clay |
Chemical Name: Anhydrous Aluminum Silicate
Chemical Formula: 2H2O* Al2O3 * 2SiO2 or H4 Al2 Si2 O9)
Chinaclay commercially known, as Kaolin is natural clay formed by
weathering of felspars. Chinaclay is a unique industrial mineral
containing predominantly kaolinite which is chemically inert, white
in colour and exhibits fine particle size. The properties can be
improved further in subsequent processing.
Its major uses are in ceramic, paper, paint, rubber & plastic
and refractory. Minor uses are in insecticides, pharmaceuticals,
cosmetics, textile, cement, ink, ultramarine, fiber- glass, soaps &
detergent and explosive & pyrotechnic Industry.
|
| Levigated
Indo-Modi Chinaclay (Kaolin) |
| Chemical Composition |
| Silica |
SiO2 |
46.60% |
| Ferric
Oxide |
Fe2O3 |
0.40% |
| Alumina |
Al2O3 |
37.60% |
| Titanium
Oxide |
TiO2 |
Traces |
| Calcium
Oxide |
CaO |
0.60% |
| Magnesium
Oxide |
MgO |
0.40% |
| Potash |
K2O |
0.14% |
| Sodium
Oxide |
Na2O |
0.18% |
| Loss on
ignition |
- |
13.98% |
| Chemical Composition |
| Brightness before bleaching |
73±
2 |
| Brightness after bleaching Fe2O3 |
84.60 |
| Residue on screen 45m |
0.05
|
| Particles |
64±
2 |
| PH Value (20% solid) |
6.5 ±.5 |
| Humidity |
8.0
-10.0 |
| M.O.R. (Green) |
8.0 |
| Fired colour |
Snow-white |
| Dispersion |
Easy |
| Mineralogical Composition |
| Kaolin |
98.00% |
| Quartz |
0.50% |
| Mica |
0.05
|
| Fired Characteristics |
| Unfired colour |
Pink
White |
| Fired to Cone 7 (12500°c) colour |
Snow
White |
| Verification |
Verified |
| Brightness after firing |
92 ISO±2 |
| Test Result For Paper /
Textile Industries |
| Screening residue on sieve 7 (200 mesh) |
Nil.. |
| Grit contents |
0.10% by
weight |
| Colour % Light reflectance |
90.00 |
| Iron (as Fe) % by weight |
0.02 |
| Relative, density at 27° c |
2.40 |
| Matter Insoluble in con. HCL |
98.98%
by weight |
| Matter soluble in water |
0.32% by
weight |
| Copper (as Cu) |
0.002%
by weight |
| Manganese (as Mn) |
0.006%
by weight |
|
|
Super Snow White Indo- Modi Chinaclay Powder |
| Chemical Composition |
| Silica |
SiO2 |
46.00% |
| Ferric
Oxide |
Fe2O3 |
0.41 % |
| Alumina |
Al2O3 |
38.02% |
| Magnesium
Oxide |
MgO |
0.27% |
| Potash |
K2O |
0.02% |
| Sodium
Oxide |
Na2O |
0.04% |
| Physical Properties |
| Whiteness |
96.0% |
| Specific gravity |
1 .7 |
| Bulk density |
0.76 |
| Oil absorption value |
37.0 |
| PH of 10% solution |
8.9 |
| Water soluble solids |
not more
them 0.29% |
| Not more them 0.29% |
14.25% |
| Application |
- Textiles
- Paint
- Plastic
- Rubber
- Paper
|
- Ceramic
- Pharmaceuticals
- Automobile
- Ultramarine blue
- Space application
- allied & chemical Industries
|
This Super, snow white Chinaclay is available in earth's crust and
is mined only in Rajasthan. |