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type of product:
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Talc, talcum line KTB
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TALC, TALCUM LINE KTB
KT5B
1. Description
Highly pure type with low content of heterogenous substances, low Fe and alkali and with high whiteness.
| 2. Mineralogical composition |
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| Talc |
% |
>98 |
| Chlorite |
% |
1 |
| Dolomite,
magnesite |
% |
<1 |
| Asbestos |
% |
0 |
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3. Physical properties |
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| Whiteness |
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CIE L |
95,69 |
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a* |
0,01 |
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b* |
2,66 |
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Y
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89 |
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| Residue on sieve 55 µm |
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% max
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1 |
| Particle size Sedigraph
5100 |
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D(50)
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8,1 µm |
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D(90)
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21,3 µm |
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| Oil consumption |
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g/100g
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40 |
| Loose weight |
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g/dm3
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550 |
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pH |
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7 |
| Moisture |
% max |
0,5 |
| Density |
g/cm3 |
2,73 |
| Hardness |
Mohs |
1 |
| Ignition loss /1100 °C/ |
% max |
8 |
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4. Packing
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| paper bags 25 kg, on 1250 kg pallets, big bags 1 T |
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TALCS |
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There
are many types of talcs. The name "talc" does not describes the
diversity of this mineral in nature. On one hand the talc is a pure
magnesium silicate and on the other hand it is a common name for rocks
containing more minerals. Pure talc has the following chemical
formula: Mg3[Si4O10(OH)2]. Theoretical chemical analysis has the
following values:
SiO2 63,5%
MgO 31,7%
H2O 4,8%
more on
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WHITENESS TO 93
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