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1 Products availableWe offer the best product range of Calcite Powder, Talc Powder, Dolomite Powder, Foundry Grade Bentonite Powder and Ocma Grade Bentonite Powder.
Chemical Composition
Calcium Carbonate | 93 % to 99 % |
---|---|
Free Silica | 1% max |
Other Oxides | 0.55 % |
Brightness | 96% |
Physical Properties
Luster | Vitreous |
---|---|
Diaphone (Transparency) | Transparent, Translucent |
Color | White |
Streak | White |
Hardness (Mohs') | 3 |
Hardness Data | Mohs' hardness reference species |
Tenacity | Brittle |
Cleavage | Perfect |
Perfect On | {10-11} |
Fracture | Irregular/Uneven, Step-Like |
Density (measured) | 2.7102 g/cm3 |
Density (calculated) | 2.711 g/cm3 |
Chemical Composition
SiO2 | 60 - 62% |
---|---|
Al203 | 0.25 - 0.28% |
MgO | 30% - 33% |
CaO | Less Than 1 % |
Fe203 | Less Than 1 % |
LOI | 4 to 5% |
Brightness | Brightness in Talc grades is available from 75% to 98%. |
Chemical Composition
Calcium Oxide as CaO | 32.11% |
---|---|
Magnesium Oxide as MgO | 20.59% |
Silica as SiO2 | 0.25% |
Alumina as Al2O3 | 0.14% |
Ferric Oxide as Fe2O3 | 0.50% |
Loss on Ignition | 44.87% |
Calcium Carbonate as CaCO3 | 50.94% |
Magnesium Carbonate as MgCO3 | 43.06% |
Physical Properties
Appearance | White Powder, with 95% whiteness |
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Moisture | 0.5% - 0.7% |
Test Results
Properties | Required Value | Result |
---|---|---|
600 - Dial Reading | 30 - Min. | 35 |
300 - Dial Reading | - | 25 |
Plastic Viscosity (Pv) | - | 10 |
Yield Point (Yp) | (3 x Pv) Or 30 - Max. | 15 |
Filtrate Volume | 15 - Mls Max. | 14.2 Mls |
Moisture Content | 10% Max. | 9.37% |
Wet Screen Analysis | 4 % Max. | 1.30% |
Test Results
Test | Results |
---|---|
Swelling Capacity (2 Gms / 100 Mls.) | 25 - 32% |
pH | 8.5 - 9.5 |
Liquid Limit | 450 - 650 |
Green Comp. Strength (6:3) | 11 - 13 PSI |
Dry Comp. Strength (6:3) | 60 - 70 PSI |
Base Exchange Capacity | 400 - 430 Mgs of MB per Gms of Bentonite |
Moisture Content | 10 - 12 % |
Test Results
Properties | Required Value | Results |
---|---|---|
600 - Dial Reading | 30 - Min. | 39 |
300 - Dial Reading | - | 33 |
Plastic Viscosity (Pv) | - | 6 |
Yield Point (Yp) | (6 x Pv) Or 36 Max. | 27 |
Filtrate Volume | 16 - Mls Max. | 14.8 Mls |
Moisture Content | 13% Max. | 9.37% |
Wet Screen Analysis | 2.5 % Max. | 2.10% |