Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Talc Powder ACS
ACS
- CAS number
- 14807-96-6
- Structure
Structure · PubChem - Grade
- ACS
- Signal word
- Danger
- Hazards
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- Product Name
- Talc Powder ACS
- Alliance Code
- talc-powder-acs
- Grade
- ACS
- Concentration
- —
- CAS Number
- 14807-96-6PubChem
- Formula
- Mg3Si4O10(OH)2Adjudicated
- Molecular Weight
- 379.27 g/molAdjudicated
- Product Type
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Content of magnesium | 17.0 % to 19.5 % | 19.0 % | Atomic absorption spectrophotometry, magnesium emission line 285.2 nm, air-acetylene flame | Interpreted |
| Absence of asbestos | Absence of asbestos; certificate of analysis states the absence of asbestos and the method used | Passes test | IR absorption (test A) or X-ray diffraction (test B); if either is positive, optical microscopy per USP <776> (test C) | Interpreted |
| Acid-soluble substances (as SO4) | 2.5 % max | 0.42 % | — | Interpreted |
| Acidity and alkalinity | Not more than 0.4 mL of 0.01 N hydrochloric acid; not more than 0.3 mL of 0.01 N sodium hydroxide | Passes test | Boil 2.5 g with 50 mL carbon dioxide-free water under reflux; titrate filtrate with bromothymol blue TS and with phenolphthalein TS | Interpreted |
| Free alkali (as NaOH) | 1 % max | 0.028 % | — | Interpreted |
| Arsenic | 3 mg/kg max | 0.40 mg/kg | — | Interpreted |
| Limit of calcium | 0.9 % max | 0.24 % | Atomic absorption spectrophotometry, calcium emission line 422.7 nm, nitrous oxide-acetylene flame | Interpreted |
| Heavy metals | 0.004 % max | 0.00078 % | — | Interpreted |
| Identification A (infrared absorption) | Maxima at 3677 +/- 2 cm-1, 1018 +/- 2 cm-1 and 669 +/- 2 cm-1 | Passes test | IR spectrum of a potassium bromide dispersion | Interpreted |
| Limit of iron | 0.25 % max | 0.064 % | Atomic absorption spectrophotometry, iron emission line 248.3 nm, air-acetylene flame | Interpreted |
| Limit of lead | 0.001 % max | 0.000052 % | Atomic absorption spectrophotometry, lead emission line 217.0 nm, air-acetylene flame | Interpreted |
| Limit of aluminum | 2.0 % max | 0.12 % | Atomic absorption spectrophotometry, aluminum emission line 309.3 nm, nitrous oxide-acetylene flame | Interpreted |
| Loss on drying | 0.5 % max | 0.08 % | — | Interpreted |
| Loss on ignition | 7.0 % max | 4.8 % | USP <733>; ignite about 1 g at 1075 +/- 25 C to constant weight | Interpreted |
| Soluble salts | 0.2 % max | 0.035 % | — | Interpreted |
| Water-soluble substances | 5 mg (0.1 %) max | 1.0 mg | Reflux 10.0 g with 50 mL carbon dioxide-free water 30 min; evaporate 25.0 mL of filtrate, dry at 105 C for 1 hour | Interpreted |
| Identification B (X-ray diffraction) | Diffraction pattern corresponds to that of the talc reference standard | Passes test | XRD, Cu K-alpha, compared to talc reference standard | Interpreted |
| Fineness (residue on 75-um / No. 200 sieve) | 99.0 % min passing | 99.8 % | Dry sieve analysis, 75-um woven-wire sieve | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | White to grayish-white fine powder | Adjudicated |
| Form | Powder | Published reference |
| Odor | Odorless. | Published reference |
| Density | 2.7 to 2.8 (NTP, 1992) | Published reference |
| Boiling Point | Not applicable | Adjudicated |
| Melting Point | 1700 to 1800 °F (NTP, 1992) | Published reference |
| Flash Point | Not applicable | Published reference |
| Vapor Pressure | 0 mmHg at 68 °F Essentially (NTP, 1992) | Published reference |
| Solubility (water) | less than 1 mg/mL at 70 °F (NTP, 1992) | Published reference |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- Not regulatedAdjudicated
- Hazard Class
- Not regulatedAdjudicated
- Packing Group
- Not regulatedAdjudicated
- Proper Shipping Name
- Not regulatedAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H350Adjudicated
- P-Codes (Precautionary Statements)
- P201, P202, P280, P308+P313, P405, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 20 mppcf TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- —no canonical
- NIOSH REL
- 2 mg/m³ TWA (respirable)NIOSH Pocket Guide
- NIOSH IDLH
- 1000 mg/m³NIOSH Pocket Guide
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Talc Powder ACS. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Laboratory and analytical reagent use.fishersci.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- Keep containers tightly closed in a dry, cool, well-ventilated place away from incompatible materials. Non-combustible solid; minimize dust formation and accumulation.Adjudicated
- Handling Precautions
- Use standard chemical PPE — splash goggles, gloves, lab coat. Refer to SDS for hazard-specific PPE requirements.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Strong oxidizing agents.Adjudicated
- Shelf Life
- Consult Technical Services for product-specific shelf life
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
Not regulated for transport.
Confirm against shipping documents and carrier requirements before tender.
NMFC Class
70
Revision History
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-13 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-12 | Canonical data updated: 6 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-06 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-10-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-10-02 | Canonical data updated: 4 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-06-17 | Canonical data re-verified: 3 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.