Ultrachemical Product Information - Return to Products List
ULTRAPURE TALC
ULTRAPURE TALC conforms to all specifications of both CTFA and USP
Standards.
| CAS#: | 14807-96 6 |
| EINECS: | 238-877-9 |
| JSCI: | (41)001393 |
| PHYSICAL PROPERTIES |
200 |
300 |
400 |
500 |
| Brightness (Photovolt) |
92 + |
92 + |
92 + |
93 + |
| Loose bulk density (CTFA C8-1) |
35 lb./ft.3+/-2 |
23 lb./ft.3+/-2 |
16 lb./ft.3+/-2 |
14 lb./ft.3+/-2 |
| Tapped bulk density (CTFA C8-1) |
72 lb./ft.3+/-2 |
59 lb./ft.3+/-2 |
45 lb./ft.3+/-2 |
30 lb./ft.3+/-2 |
| Acid Sols (CaO) |
1.0% Max |
1.0% Max |
1.0% Max |
1.0% Max |
| Specific Gravity |
2.8 |
2.8 |
2.8 |
2.8 |
| Free Moisture |
0.2% Max |
0.2% Max |
0.2% Max |
0.2% Max |
| pH - (1:5 dilution) |
8.7 |
8.7 |
8.7 |
8.7 |
| Average Particle Size |
14-16 |
7-10 |
3.0-4.5 |
2.0-3.0 |
| Oil absorption |
20 |
30 |
38 |
48 |
Free of asbestiform minerals by the J-4-1 test method.
Contain less than 1.0% crystalline silica by the ex-ray diffraction method.
| Bacteria control: |
gram positive < 100 per gram |
| gram negative zero |
| Chemical Analysis |
| SiO2 |
61.5 |
| MgO |
31.0 |
| Al203 |
1.0% Max |
| CaO |
1.0% Max |
| Fe2O3 |
0.4% Max |
| Pb |
Less than 10 ppm |
| AS |
Less than 2 ppm |
| L.O.I. |
5.0% |
| 
