Talc
General Product Information
| Article | Talc |
| Synonyms | C.I. Pigment White 26, Talcum |
| CAS No. | 14807-96-6 |
| EEG No. | – |
| EINECS No. | 238-877-9 |
| IMO | – |
| Tariff Code | 25262000 |
| UN No. | – |
| VLG/ADR | – |
Description
Talc is a natural mineral consisting mainly of hydrated magnesium silicate. It occurs as a white to light gray, odorless and very soft powder. Talc is known for its unique properties such as smoothness, thermal stability, chemical inertness and moisture absorbing ability. It is one of the most widely used industrial minerals worldwide in numerous industries.
Characteristics
- Odor: Odorless.
- Hygroscopic: –
- Color: White to light gray.
- Grade: Technical.
- Solubility: Not soluble in water.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | Mg3Si4O10(OH)2 |
| Molar Weight | 379.27 g/mol |
| Melting Point | Approx. 1500 °C. |
| Boiling Point | – |
| Density | 2.7-2.8 g/cm³ |
| Refractive Index | – |
| pH | – |
Applications
Talk is applied in various ways, for instance:
1. Cosmetics & Personal Care
Used in baby powders, face powders and deodorants because of its absorbent and gentle properties.
2. Paint & coating industry
Enhances matte appearance and strengthens scratch resistance and adhesion to surfaces.
3. Plastics & Rubber Industry
As a filler in plastic compounds and rubber products to improve mechanical strength, processability and heat resistance.
4. Ceramics & building materials
Talc contributes to thermal and chemical resistance in ceramic products and resists high temperatures.
5. Paper industry
Increases the smoothness, opacity and print quality of paper; also acts as a coating material.
Interessing Links
- CAS Common Chemistry – Talc
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Talc – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Talc