| DESCRIPTION |
| |
| Talc is a highly lamellar product. It is suitable for applications where very fine, pure and bright product is required. |
| |
| MINERALOGY |
| |
| 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 |
|
| |
| Detection of Asbestiform Minerals by DTFA J4 - 1 Method |
Parameters |
| Detection of Amphibole Minerals as Asbestos by XRD |
Negative |
|
| |
| AVERAGE ANALYSIS BY SGS MINLAB - 939 / 2014 |
| |
| Chemical Analysis |
| |
| Parameters |
Formula |
Method |
Unit |
Result |
| Silica |
SiO2 |
Based on Scott ( Gravimetric ) |
% |
56.97 |
| Magnesium Oxide |
MgO |
Based on Scott ( Titrimetric ) |
% |
30.94 |
| Calcium Oxide |
CaO |
Based on Scott ( Titrimetric ) |
% |
01.75 |
| Calcium Carbonate |
CaCO3 |
Calculated |
% |
03.13 |
| Loss on Ignition ( L.O.I ) |
at 1050 °C |
|
|
8 - 9 |
|
| |
| Physical Analysis |
| |
| 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 |
|
1.75 |
| pH |
ISO 787/9 |
8 |
| Moisture |
ISO 782/2 |
< 1 % |
| Whiteness |
Ry |
85 - 87% |
| Whiteness |
L* |
93 - 95% |
|
| |
| SIZE ASSESSMENT |
| |
| Overall size assessment ascertained are given as under: |
| |
| Size Distribution |
Percentage |
| Above 100 mm |
5 |
| 10 - 100 mm |
36 |
| 0 - 10 mm |
59 |
| Total |
100 |
|
| |
| PROPERTIES |
| |
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
|
