CAS 7723-14-0 · TSCA · United States of America

Phosphorus (yellow / white / red) under TSCA

P4 (white) / Pn (red) · 黄磷 / 白磷 / 红磷

Status: Listed. Phosphorus is on the TSCA Inventory and currently listed as TSCA Active. **OSHA PEL for yellow phosphorus at 29 CFR 1910.1000 Table Z-1: 0.1 mg/m3 8-hr TWA (verify against https://www.osha.gov/annotated-pels before relying); NIOSH REL: 0.1 mg/m3 8-hr TWA (verify against cdc.gov/niosh)**. **EPA RMP threshold quantity 100 lb for white phosphorus at 40 CFR Part 68 (verify against https://www.ecfr.gov/ before relying)**. **DEA List I essential chemicals at 21 CFR 1310.02(a) covers red phosphorus, hypophosphorous acid, and hypophosphorous acid salts as methamphetamine precursors (verify against https://www.ecfr.gov/current/title-21/chapter-II/part-1310 before relying); white / yellow phosphorus itself is not on DEA scheduling, but red-phosphorus consignments trigger DEA registration and import-declaration obligations**. **White phosphorus is not listed on California Proposition 65 (verify against OEHHA https://oehha.ca.gov/proposition-65/proposition-65-list before relying)**. **Historical US AD/CVD on Chinese-origin yellow phosphorus exists at access.trade.gov (verify the current case-number, cash-deposit rate, and sunset-review status against https://access.trade.gov/ before invoicing; do not assert a specific case number without primary-source confirmation)**. Section 301 List 3 25% additional duty applies on Chinese-origin phosphorus (HS 280470) (verify against current USTR Section 301 schedule before invoicing). **White phosphorus has been used in incendiary munitions and is potentially controlled under USML Category V (incendiaries); verify against the current US Munitions List at 22 CFR 121.1 before any defence-end-use export** (verify against https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M before relying). Major US domestic phosphorus producers: Monsanto (now Bayer-CropScience) + ICL Performance Products (formerly Astaris) Soda Springs Idaho + Pocatello Idaho electric-arc furnace operations; verify each company-site pair against the producer's public website before relying.

US phosphorus lane: **OSHA PEL 0.1 mg/m3 + NIOSH REL 0.1 mg/m3 + EPA RMP 100 lb white phosphorus + DEA List I 21 CFR 1310.02(a) red P + hypophosphorous acid + salts (meth precursors) + historical US AD/CVD on Chinese yellow P at access.trade.gov (verify current case-number + cash-deposit rate before invoicing) + Section 301 List 3 + potential USML Category V on white P for defence end-use**. **White phosphorus NOT on Cal Prop 65 (verify against OEHHA)**. **Red-phosphorus consignments trigger DEA Form 510 registration + Form 486 import declaration**. Major US producers: Monsanto / Bayer-CropScience + ICL Performance Products (Idaho electric-arc furnace).

Listing and threshold

Substance Phosphorus (yellow / white / red) (CAS 7723-14-0), P4 (white) / Pn (red)
Regime US Toxic Substances Control Act (TSCA), administered by EPA
Jurisdiction United States of America
Status Listed
Tonnage threshold CDR threshold: 25,000 lb manufactured or imported per site per year

Classifications under this regime

  • OSHA HCS: white phosphorus Pyr. Sol. 1 + Acute Tox. 1 + Skin Corr. 1B; red phosphorus Flam. Sol. 1
  • OSHA PEL for yellow phosphorus: 0.1 mg/m3 8-hr TWA at 29 CFR 1910.1000 Table Z-1 (verify against https://www.osha.gov/annotated-pels)
  • NIOSH REL: 0.1 mg/m3 8-hr TWA (verify against cdc.gov/niosh)
  • **EPA RMP threshold quantity 100 lb for white phosphorus at 40 CFR Part 68** (verify against https://www.ecfr.gov/)
  • NOT subject to TSCA Section 6 Risk Evaluation
  • **DEA List I essential chemicals at 21 CFR 1310.02(a) covers red phosphorus, hypophosphorous acid, and hypophosphorous acid salts (methamphetamine precursors); verify against https://www.ecfr.gov/current/title-21/chapter-II/part-1310 before relying. White / yellow phosphorus itself not on DEA scheduling**
  • **White phosphorus NOT on California Proposition 65 (verify against OEHHA https://oehha.ca.gov/proposition-65/proposition-65-list before relying)**
  • DOT 49 CFR 172.101: white phosphorus UN 1381 / UN 2447 Class 4.2 PG I; red phosphorus UN 1338 Class 4.1 PG III
  • IARC: Not classified

Restrictions and conditions of use

  • **Historical US AD/CVD on Chinese-origin yellow phosphorus exists at access.trade.gov; verify the current case-number, cash-deposit rate, and sunset-review status against https://access.trade.gov/ before invoicing (do not assert a specific case number without primary-source confirmation)**
  • Section 301 List 3 25% additional duty applies on Chinese-origin phosphorus (HS 280470)
  • OSHA PEL 0.1 mg/m3 8-hr TWA for yellow phosphorus
  • **EPA RMP threshold 100 lb for white phosphorus** triggers Risk Management Plan
  • **DEA List I 21 CFR 1310.02(a) for red phosphorus + hypophosphorous acid + hypophosphorus salts (meth precursors)** triggers DEA registration + import-declaration obligations for red-phosphorus consignments
  • **Potential USML Category V (incendiaries) control on white phosphorus for defence end-use** (verify against current US Munitions List at 22 CFR 121.1 before any defence-related export)

Importer obligations

TSCA self-certification regime. **Chinese-origin yellow phosphorus AD/CVD historical context active (verify the current case-number, cash-deposit rate, and sunset-review status against https://access.trade.gov/ before invoicing).** **Red-phosphorus consignments trigger DEA List I 21 CFR 1310.02(a) registration + import-declaration obligations**. Major US producers: Monsanto / Bayer-CropScience + ICL Performance Products Soda Springs ID + Pocatello ID electric-arc furnace operations.

Required documents

  • TSCA Section 13 Import Certification on customs entry
  • OSHA SDS (white phosphorus Pyr. Sol. 1 + Acute Tox. 1 + Skin Corr. 1B; red phosphorus Flam. Sol. 1)
  • CBP Form 7501 with HS 280470 + Section 301 List 3 25% duty
  • CDR filing every 4 years
  • DOT documentation for UN 1381 / UN 2447 Class 4.2 PG I (white) or UN 1338 Class 4.1 PG III (red)
  • EPA RMP filing where applicable
  • **DEA Form 510 registration + DEA Form 486 import declaration for red-phosphorus consignments (DEA List I 21 CFR 1310.02(a))**

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • OSHA PEL 0.1 mg/m3 + NIOSH REL 0.1 mg/m3 8-hr TWA for yellow phosphorus
  • **EPA RMP threshold 100 lb for white phosphorus**
  • **DEA List I 21 CFR 1310.02(a) for red phosphorus + hypophosphorous acid + hypophosphorus salts (methamphetamine precursors)**: DEA registration + Form 486 import declaration required
  • **White phosphorus NOT on Cal Prop 65 (verify against OEHHA before relying)**
  • **Historical US AD/CVD on Chinese yellow phosphorus exists at access.trade.gov; verify current case-number + cash-deposit rate + sunset-review status before invoicing** + Section 301 List 3 25% additional duty
  • **Potential USML Category V (incendiaries) control on white phosphorus for defence end-use** (verify against 22 CFR 121.1 before relying)
  • White phosphorus UN 1381 / UN 2447 Class 4.2 PG I pyrophoric solid; red phosphorus UN 1338 Class 4.1 PG III flammable solid
  • Major US producers: Monsanto / Bayer-CropScience + ICL Performance Products Soda Springs ID + Pocatello ID

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for phosphorus (yellow / white / red), see the CAS 7723-14-0 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the phosphorus (yellow / white / red) cornerstone hub covers the full sourcing chain.

For the structure and history of TSCA, see the TSCA glossary entry.

Need cross-jurisdiction compliance support on this substance? Run it through the REACH / TSCA / IECSC / AICIS / K-REACH checker, or send us the substance and the destination and we will quote FOB China and CIF / DDP landed including the regulatory work on the destination side.

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Cross-jurisdiction profile and sourcing references

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