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DESCRIPTION |
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Talc is a highly lamellar product. It is suitable for applications where very fine, pure and bright product is required. |
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MINERALOGY |
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Parameters |
Formula |
Method |
Unit |
Result |
Lead |
Pb |
X - Ray Fluorescence |
% |
Traces |
Chlorite |
Cl |
X - Ray Fluorescence |
% |
Traces |
Arsenic |
Ar |
X - Ray Fluorescence |
% |
Traces |
Chromium |
Cr |
X - Ray Fluorescence |
% |
Traces |
Manganese |
Mg |
X - Ray Fluorescence |
% |
Traces |
Nickel |
Ni |
X - Ray Fluorescence |
% |
Traces |
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Detection of Asbestiform Minerals by DTFA J4 - 1 Method |
Parameters |
Detection of Amphibole Minerals as Asbestos by XRD |
Negative |
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AVERAGE ANALYSIS BY SGS MINLAB - 939 / 2014 |
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Chemical Analysis |
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Parameters |
Formula |
Method |
Unit |
Result |
Silica |
SiO2 |
Based on Scott ( Gravimetric ) |
% |
56.35 |
Magnesium Oxide |
MgO |
Based on Scott ( Titrimetric ) |
% |
32.20 |
Calcium Oxide |
CaO |
Based on Scott ( Titrimetric ) |
% |
00.97 |
Calcium Carbonate |
CaCO3 |
Calculated |
% |
01.73 |
Loss on Ignition ( L.O.I ) |
at 1050 °C |
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7 - 8 |
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Physical Analysis |
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Parameters |
Method |
Result |
Density |
ISO 787/10 |
2.75 g/ml |
Bulk Density |
ISO 787/11 |
0.70 g/ml |
Hardness |
Mohs |
1 |
Refractive Index |
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1.75 |
pH |
ISO 787/9 |
8 |
Moisture |
ISO 782/2 |
< 1 % |
Whiteness |
Ry |
91 - 93% |
Whiteness |
L* |
96 - 97% |
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PROPERTIES |
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The properties of Talc which make it of commercial value are:
- Extreme Softness
- Moderate Lustre
- Lubrication Properties
- Low Moisture Content
- Ability to absorb Oil and Grease
- Chemical Inertness
- High Fusion Point
- Low Conductivity for Heat and Electricity
- Good Hiding Power as a pigment
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PSD SEDIGRAPH |
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Sample |
Talc Powder CTA40 |
R.I.Re. |
1.55 |
R.I.Im. |
0 |
Medium |
Water |
Medium R.I. |
1.333 |
Obscuration |
44.29 % |
Dispersant |
N/A |
Modal |
Unimodal |
Residua |
0.15 % |
Remarks |
Aimsizer |
Median (D50) |
13.94 um |
VMD(4,3) |
15.46 um |
SMD(3,2) |
8.91 um |
SSA |
673.04 m2 / m3 |
Uniformity |
0.525 |
Span |
1.698 |
D10 |
4.69 um |
D16 |
6.26 um |
D25 |
8.35 um |
D75 |
20.97 um |
D84 |
24.7 um |
D90 |
28.38 um |
D97 |
36.54 um |
D98 |
38.92 um |
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