Industrial chemicals · Taylor, TXTechnical Data Sheet
Talc Powder ACS
ACS
Identity & Composition
- Product Name
- Talc Powder ACS
- Alliance Code
- talc-powder-acs
- Grade
- ACS
- Concentration
- —
- CAS Number
- 14807-96-6PubChem
- Formula
- H2Mg3O12Si4PubChem
- Molecular Weight
- 379.27PubChem
- 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 | USP monograph |
| 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) | USP monograph |
| Acid-soluble substances (as SO4) | 2.5 % max | 0.5 % | — | FCC |
| 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 | USP monograph |
| Free alkali (as NaOH) | 1 % max | 0.02 % | — | FCC |
| Arsenic | 3 mg/kg max | 0.3 mg/kg | — | FCC |
| Limit of calcium | 0.9 % max | 0.15 % | Atomic absorption spectrophotometry, calcium emission line 422.7 nm, nitrous oxide-acetylene flame | USP monograph |
| Heavy metals | 0.004 % max | 0.0005 % | — | Supplier specification |
| 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 | USP monograph |
| Limit of iron | 0.25 % max | 0.08 % | Atomic absorption spectrophotometry, iron emission line 248.3 nm, air-acetylene flame | USP monograph |
| Limit of lead | 0.001 % max | 0.00005 % | Atomic absorption spectrophotometry, lead emission line 217.0 nm, air-acetylene flame | USP monograph |
| Limit of aluminum | 2.0 % max | 0.15 % | Atomic absorption spectrophotometry, aluminum emission line 309.3 nm, nitrous oxide-acetylene flame | USP monograph |
| Loss on drying | 0.5 % max | 0.1 % | — | FCC |
| Loss on ignition | 7.0 % max | 5.0 % | USP <733>; ignite about 1 g at 1075 +/- 25 C to constant weight | USP monograph |
| Microbial enumeration (topical use) | Total aerobic microbial count 100 cfu per g max; total combined molds and yeasts 50 cfu per g max | Passes test | USP <61> Microbial enumeration tests / <62> Tests for specified microorganisms | USP monograph |
| Soluble salts | 0.2 % max | 0.04 % | — | FCC |
| Water-soluble substances | 5 mg (0.1 %) max | 1 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 | USP monograph |
| 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 | 99.9 % | Dry sieve analysis, 75-um woven-wire sieve | Interpreted |
Specification values are guaranteed limits. Typical values are representative of production lots and are not guaranteed. Lot-specific certificates of analysis ship with every order.
Physical & Chemical Properties
One or more physical-property values are temporarily suppressed pending verification against vendor COA data. For complete properties refer to the Safety Data Sheet (SDS) or contact sales@alliancechemical.com.
| Property | Value | Source |
|---|---|---|
| Form | Powder | Published reference |
| Odor | Odorless. | Published reference |
| Density | 2.7 to 2.8 (NTP, 1992) | Published reference |
| Boiling Point | 1800°C | Published reference |
| 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 |
Materials of Construction
| Material | Rating | Max T (°C) | Notes | Source |
|---|---|---|---|---|
Buna-N (NBR) elastomer | Good | 60 | Acceptable | Cole-Parmer Chemical Compatibility |
EPDM elastomer | Excellent | 100 | Standard for brine gaskets. | Parker O-ring Chemical Compatibility |
Viton (FKM) elastomer | Excellent | 100 | Preferred elastomer | Cole-Parmer Chemical Compatibility |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert to salt solutions. | Cole-Parmer Chemical Compatibility |
Concrete (sealed) glass ceramic | Good | — | Acceptable with epoxy coating | Cole-Parmer Chemical Compatibility |
304 stainless steel metal | Fair | 25 | Pitting in chloride-rich service | Cole-Parmer Chemical Compatibility |
316L Stainless Steel metal | Good | 60 | Watch for chloride pitting above 60 °C in chloride salts. | NACE Chloride Pitting Guidelines |
Aluminium metal | Poor | — | Pitting; not recommended for brine | Cole-Parmer Chemical Compatibility |
Carbon steel metal | Poor | — | Rapid rust in brine | Cole-Parmer Chemical Compatibility |
FRP thermoplastic | Excellent | 60 | Common bulk-storage | Cole-Parmer Chemical Compatibility |
HDPE thermoplastic | Excellent | 60 | Universal salt brine compatibility. | Cole-Parmer Chemical Compatibility |
PP thermoplastic | Excellent | 80 | Acceptable for hot brine | Cole-Parmer Chemical Compatibility |
PVC thermoplastic | Excellent | 60 | Standard for brine piping. | Cole-Parmer Chemical Compatibility |
Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.
Materials Selection Tool
Showing 13 of 13 materials compatible at the selected envelope.
| Material | Rating | Max T (°C) | Notes |
|---|---|---|---|
Buna-N (NBR) elastomer | Good | 60 | Acceptable |
EPDM elastomer | Excellent | 100 | Standard for brine gaskets. |
Viton (FKM) elastomer | Excellent | 100 | Preferred elastomer |
Borosilicate Glass glass ceramic | Excellent | 100 | Universally inert to salt solutions. |
Concrete (sealed) glass ceramic | Good | — | Acceptable with epoxy coating |
304 stainless steel metal | Fair | 25 | Pitting in chloride-rich service |
316L Stainless Steel metal | Good | 60 | Watch for chloride pitting above 60 °C in chloride salts. |
Aluminium metal | Poor | — | Pitting; not recommended for brine |
Carbon steel metal | Poor | — | Rapid rust in brine |
FRP thermoplastic | Excellent | 60 | Common bulk-storage |
HDPE thermoplastic | Excellent | 60 | Universal salt brine compatibility. |
PP thermoplastic | Excellent | 80 | Acceptable for hot brine |
PVC thermoplastic | Excellent | 60 | Standard for brine piping. |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- Not regulatedAdjudicated
- Hazard Class
- Not regulatedAdjudicated
- Packing Group
- Not regulatedAdjudicated
- Proper Shipping Name
- Not regulatedAdjudicated
GHS / OSHA HazCom 2012
- Signal Word
- Not regulatedAdjudicated
- H-Codes (Hazard Statements)
- —no canonical
- P-Codes (Precautionary Statements)
- —no canonical
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- —no canonical
- ACGIH TLV
- —no canonical
- NIOSH REL
- —no canonical
- NIOSH IDLH
- —no canonical
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, 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
- Talc is used as a lubricant, filler, reinforcement, electric and heat insulator, anti-stick and anti-cake agent, carrier, thickener and adsorbent.ranjanaminerals.com
- Used as a filler in plastic compounds including polypropylene, polyamides and cable PVC.ranjanaminerals.com
- Used in decorative paints, industrial coatings, pigment pastes, primers, enamels, adhesives and putties.ranjanaminerals.com
- Used in papermaking as a filler, to control pitch and stickies, and in paper coating.ranjanaminerals.com
- Used in detergent manufacturing, textiles, printing ink and the rubber industry, and as a filler raw material in chemical industries.ranjanaminerals.com
- Natural hydrous magnesium silicate is processed into paint pigment (magnesium silicate pigment) quality, per ASTM D 605.pdfcoffee.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
- Preserve in well-closed containers; the monograph states no storage requirements.drugfuture.com
- Handling Precautions
- Standard chemical PPE — dust mask and goggles for handling of fine grades. Avoid generating airborne dust.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Specific incompatibilities depend on the salt — consult the SDS. Many salts react with strong acids to release gases.Class-level guidance — not product-specific; the SDS controls.
- 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.
Revision History
Last reviewed 2026-06-17 by Andre Taki, DOT Hazmat Specialist.
| Version | Date | Change | Trigger |
|---|---|---|---|
| 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.