Cosmetic Grade Talc Powder from China - Trusted Suppliers and Quality Factory Direct Supply
| Chemical Component | Typical Content | Description |
|---|---|---|
| SiO₂ | 58% - 63% | Main silicate component |
| MgO | 28% - 32% | Main magnesium component |
| Al₂O₃ | ≤ 2.0% | Controlled impurity |
| Fe₂O₃ | ≤ 1.0% | Affects whiteness and color |
| CaO | ≤ 1.5% | Minor component |
| Na₂O + K₂O | ≤ 1.0% | Alkali components |
| Loss on Ignition | 4% - 6.5% | Related to mineral structure and moisture |
The major components are Silicon Dioxide (SiO₂) at 58%–63% and Magnesium Oxide (MgO) at 28%–32%, which together form the core magnesium silicate mineral structure.
Keeping Fe₂O₃ below 1.0% is critical for maintaining high optical whiteness and brightness while preventing unwanted discoloration in industrial and cosmetic formulations.
Loss on Ignition (4%–6.5%) indicates the percentage of volatile matter, chemically bound water, and moisture released when the mineral is heated under standardized high temperatures.
Low CaO levels ensure superior chemical inertness, high thermal stability, and reduced reactivity in acidic and polymers-processing environments.
Limiting alkali oxides to 1.0% or less enhances the material's electrical insulation properties and prevents unwanted hygroscopic or fluxing effects during manufacturing.
This specification is widely used across plastics, rubbers, functional coatings, ceramics, paper, and personal care products requiring high purity and strict color stability.
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