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type of product:
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Talc, talcum line KT
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TALC, TALCUM LINE KT
TYPES KT1, KT5, KT7
1. Description
Highly pure talc with very low content of heterogenous substances, low Fe and alkali and with very 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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KT 1 |
KT5 |
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CIE L |
97,15 |
96,8 |
|
a* |
0 |
0,2 |
|
b* |
1,49 |
1,32 |
|
Y
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92,8 |
92 |
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KT1 25 µm |
KT5 55 µm |
| Residue on sieve |
% max
|
0,8 |
1 |
| Particle size Sedigraph
5100 |
D(50)
|
4,7 µm
|
8,1 µm |
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D(90)
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12,3 µm
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21,3 µm |
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| Oil consumption |
g/100g max
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46
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40 |
| Loose weight |
g/dm3
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510
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550 |
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pH |
|
7 |
| Moisture |
% max |
0,5 |
| Density |
g/cm3 |
2,73 |
| Hardness |
Mohs |
1 |
| Ignition loss /1100 °C/ |
% |
6,5 ±1 |
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4.
Packing
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talc KT1 is packed into 25 kg paper bags, 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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