|
|
|
|
|
type of product:
|
Talc, talcum Sartal
|
|
TALC, TALCUM Sartal 10 B
1. Description
Low content of heterogenous substances, low content of Fe and high MgO.
|
|
|
| 2. Mineralogical composition |
|
|
| Talc |
% |
85 |
| Dolomite,
magnesite |
% |
15 |
|
|
|
|
|
|
|
|
|
|
3. Physical properties |
|
|
| Whiteness |
|
CIE L |
96,7 |
|
|
a* |
-0,35 |
|
|
b* |
1,01 |
|
|
Y min
|
89 |
|
|
|
|
|
|
| Residue on sieve 40 µm |
|
% max
|
3 |
| Particle size Sedigraph
5100 |
|
D(50)
|
6,1 µm |
|
|
|
|
|
|
|
|
|
|
D(90)
|
20,3 µm |
| Oil consumption |
|
g/100g max
|
38 |
| Loose weight |
|
g/dm3
|
680 |
|
|
|
|
|
|
|
|
|
pH |
|
9 |
| Moisture |
% max |
0,5 |
| Density |
g/cm3 |
2,8 |
| Hardness |
Mohs |
1 |
| Ignition loss /1100 °C/ |
% max |
6,7 |
|
|
|
|
|
|
|
|
|
|
4. Packing
|
|
|
| paper bags 25 kg, on 1000 kg pallets |
|
|
|
|
|
|
TALCS |
 |
|
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
|
|
|
WHITENESS TO 93
|
|
