TALC
Talc for the production of ceramics (TMK-28) of Bashtalc Company, Ltd.
Talc powder for the production of ceramics of the TMK 28 GOST 21234-75 trademark is used for the production of ceramic products, welding electrodes, in casting of metal (non-stick coating) and in producing lightweight refractory materials.
Typical technological indexes of quality for mark talc ÒÌÊ 28 (GOST 21234-75)
| Name of Properties | Index of test | Index of GOST | Normative document |
Chemical content: |
|
|
|
| 52 | - | GOST 19725.3 | |
| 28 | 28 | GOST 19728.8 | |
| 3 | - | GOST 19725.5 | |
| 0,46 | 0,5 | GOST 19725.5 | |
Index of Refraction, whiteness (R457): |
70 | >67 | GOST 16680-79 |
Particle Size Distribution, % max: |
|
|
|
| - | 2 | GOST 19728.4-88 | |
Stake of mass ignition Insolubility in the HCl, %, min: |
95,7 | 90 | GOST 19728.1 |
Stake of mass Fe2O3 in the extraction of the HCl, %, min: |
0,8 | 0,9 | GOST 19728.4 |
Mass stake of iron (Fe), extractive a magnet, %, max: |
0,03 | 0,04 | |
Loss Of Ignition, %, max: |
5,11 | 6 | GOST 19728.17 |
Moisture, %, max: |
0,3 | 1,0 | GOST 19728.19 |
