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Phosphorus-31

CAS 7723-14-0

U.S. production volumes are classified as confidential business information.

US productionCBI
Import value, 2024$29M
Top sourceVietnam 47%

At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.

Why supply is unknown

Production is reported production, not a complete census of factories. US production volume is confidential. Production reporting year: 2023.

Where It Comes From

Customs basis: HS 280470 · exact

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential
Source Countries
VN 47%VietnamKZ 46%KazakhstanIN 5%IndiaCN 1%ChinaJP 1%Japan
EPA-registered manufacturers (6)
Basf Se · DE Germany
Bayer Ag · DE Germany
Basf
Bayer Us Holding
Real Alloy Holding
Show all 6
Real Alloy Recycling
Domestic parents -- activity not disclosed (4)
Federal Cartridge Company Dba Hevi-Shot
Hydrite Chemical
Icl Specialty Products North America
Toyota Tsusho America
EPA-registered importers (16)
Basf Se · DE Germany
Clariant International · CH Switzerland
Glencore Plc · CH Switzerland
Jfe Steel · JP Japan
Clariant
Show all 16
Cleveland Cliffs Burns Harbor
Cleveland Cliffs Steel
Cleveland-Cliffs
Fci
Glencore
Lanxess
Nucor
Radius Recycling
Steel Dynamics
Sterling Steel
Tms International

Why It Matters

Sectors
DefenseAgricultureElectronicsTransportationConstructionMetals & MiningPlastics & RubberConsumer ProductsCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 10 sectors as 3 functional roles.

  • •Intermediate in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant
  • •Alloys in Fabricated Metal Product Manufacturing (100%)Processing—incorporation into article
  • •Alloys in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (100%)Processing as a reactant
  • •Intermediate in Plastics Product Manufacturing (100%)Processing as a reactant
  • •Flame retardant in Adhesive Manufacturing (50%)Processing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Not Known or Reasonably Ascertainable (100%)Use—non-incorporative activities
  • •Flame retardant in All Other Chemical Product and Preparation Manufacturing (50%)Processing—incorporation into article
  • •Intermediate in Primary Metal ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Electrical Equipment, Appliance, and Component ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
  • •Flame retardant in Transportation Equipment ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS7723-14-0
PubChem CID5462309
DTXSIDDTXSID1024382
FormulaP
Mol. Weight30.973762 g/mol
SMILESP

Data Sources

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Brief citations

Phosphorus-31 (CAS 7723-14-0) https://chemicalindependence.com/chemical/7723-14-0/ EPA CompTox (DSSTox): DTXSID1024382. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID1024382 PubChem: 5462309. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/5462309 EPA Chemical Data Reporting: 7723-14-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 7723-14-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 280470 for CAS 7723-14-0. Reporting year: 2024. https://usatrade.census.gov/