Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Talc Powder - White Colored Technical Grade
Industrial
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 14807-96-6
- Structure
Structure · PubChem - Grade
- Industrial
- Answer summary
Sample specification reference for Talc Powder - White Colored Technical Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Aluminum and iron oxides (R2O3) | 6 % max | 0.7 % | ASTM D 717, per ASTM D 605 section 5.1.1 |
| Asbestos | Free | Passes test | — |
| Calcium oxide (CaO) | 10 % max | 0.50 % | ASTM D 717, per ASTM D 605 section 5.1.1 |
| Coarse particles (residue on 45-µm / No. 325 sieve) | 2 % max | 0.2 % | ASTM D 717, per ASTM D 605 section 5.1.1 |
| Loss on ignition | 7 % max | 5.5 % | ASTM D 1208 (Test Methods for Common Properties of Certain Pigments), per ASTM D 605 section 5.1.2 |
| Combined magnesium and calcium silicates (MgO + SiO2 + CaO) | 88 % min | 93.0 % | ASTM D 717 (Test Methods for Analysis of Magnesium Silicate Pigment), per ASTM D 605 section 5.1.1 |
| Moisture and other volatile material | 1 % max | 0.15 % | ASTM D 280 (Test Methods for Hygroscopic Moisture), per ASTM D 605 section 5.1.6 |
| Whiteness | 85 to 98 % | 92.1 % | — |
| pH, 10 % w/w aqueous suspension @ 25 C | 8.5 - 10.0 | 9.2 | EN ISO 787-9, calibrated pH meter |
| Median particle size (d50) | 8 - 15 um | 12.0 | Laser diffraction, ISO 13320 (dry dispersion) |
| Specific gravity (true density) @ 20 C | 2.70 - 2.85 | 2.772 | Helium pycnometry |
| Oil absorption | 25 - 45 g/100 g | 36 | ASTM D281 (spatula rub-out), linseed oil |
| Crystalline silica (quartz) | 1.0 % max | 0.20 % | X-ray diffraction, quantitative (reference intensity ratio) |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.
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