GRW
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Talc Powder and Stone Vietnam
TALC STONE FROM AFGHANISTAN AND OTHER ORIGINS
| PHYSICAL ANALYSIS TALC | CHEMICAL ANALYSIS TALC |
| Whiteness: 96% min | SiO2: 61.36% |
| Brightness: 94% min | Al2O3: 0.42% |
| Moisture content: 0.5%max | Fe2O3: 1.95% |
| PH value: 8-9 | MgO: 30.36% |
| Density: 2.7 g/cm3 at 20oC | K2O: 0.02% |
| Acid solvable: 0.6%max | CaO: 0.01% |
| Oil absorption value: 35-40% | Na2O: 0.06% |
| Size: 3-30cm | LOI: 4.47% |
TALC IS USED IN MANY INDUSTRIES SUCH AS PAPER MAKING, PLASTIC, PAINT AND
COATINGS, RUBBER, FOOD, ELECTRIC CABLE, PHARMACEUTICALS, COSMETICS,
CERAMICS, ETC. A COARSE GRAYISH-GREEN HIGH-TALC ROCK IS SOAPSTONE OR
STEATITE AND HAS BEEN USED FOR STOVES, SINKS, ELECTRICAL SWITCHBOARDS,
CRAYONS, SOAP, ETC. IT IS OFTEN USED FOR SURFACES OF LAB COUNTER TOPS AND
ELECTRICAL SWITCHBOARDS BECAUSE OF ITS RESISTANCE TO HEAT, ELECTRICITY AND
ACIDS.
