Talc Powder Supplier in China - High-Quality Talc from Reliable Factory for Industrial Applications
| Chemical Component | Typical Content | Description |
|---|---|---|
| SiO2 | 58% - 63% | Main silicate component |
| MgO | 28% - 32% | Main magnesium component |
| CaO | ≤ 2% | Associated mineral impurity |
| Al2O3 | ≤ 2% | Controlled impurity |
| Fe2O3 | ≤ 1% or customized | Affects whiteness and color |
| K2O + Na2O | Trace | Minor alkali components |
| Loss on Ignition | 4% - 7% | Depends on mineral source |
What are the primary chemical components of this product?
The product is primarily composed of Silicon Dioxide (SiO2) at 58% - 63% and Magnesium Oxide (MgO) at 28% - 32%, representing high purity silicate and magnesium mineral structure.
Why is the Fe2O3 level strictly controlled?
Iron Oxide (Fe2O3) directly impacts visual properties such as whiteness and brightness. Keeping it at ≤ 1% (or customized to lower levels) guarantees optimal color performance in finished applications.
What does "Loss on Ignition" (LOI) indicate?
Loss on Ignition (4% - 7%) measures the release of bound structural water and volatile components when the mineral is heated at high temperatures, which naturally depends on the mineral source quality.
How do CaO and Al2O3 impurities affect end-use performance?
Both Calcium Oxide (CaO) and Aluminum Oxide (Al2O3) are maintained at ≤ 2% to ensure chemical stability, preventing adverse side reactions in plastics, paints, coatings, and ceramics.
Can chemical ratios be tailored for specific industrial requirements?
Yes, parameters like Fe2O3 content and particle sizing can be customized according to specific processing standards and customer formulations.
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