Phosphorus-31
CAS 7723-14-0
U.S. production volumes are classified as confidential business information.
At least one company claimed its 2023 production or import volume for this chemical as confidential, so EPA withholds it.
Why supply is unknownProduction 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
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
- Italy
- Germany
- Netherlands
- United Kingdom
Show all 6
Show all 16
Why It Matters
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
Data Sources
- EPA CompTox (DSSTox) · DTXSID1024382Retrieved 2026-04-06
- PubChem · compound 5462309Retrieved 2026-04-06
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- EPA Chemical Data ReportingReporting year: 2023 · Retrieved 2026-10-04
- US Census international tradeReporting year: 2024 · Retrieved 2026-10-04
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/