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Nitric acid, copper(2+) salt (2:1)

CAS 3251-23-8

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

Molecular structure of 3251-23-8
1 Cu²⁺
US productionCBI
Import value, 2024$21M
Top sourceNorway 31%

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. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 283429 · basket

EPA reports by year
2023
US production Confidential · Imports Confidential
2019
US production Confidential · Imports Confidential

These shares come from HS customs code 283429, which covers 27 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
NO 31%NorwayDE 15%GermanyMX 14%MexicoCA 8%CanadaCN 7%China
EPA-registered manufacturers (5)
Specialty Metals Resources Holding · HK Hong Kong
Bluestone Specialty Chemicals
Sabin Metal
Shepherd Material Science
Venator Chemicals
Domestic parents -- activity not disclosed (2)
Clariant
Koch

Why It Matters

Sectors
EnergyMetals & MiningPlastics & RubberCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
No FDA shortage records

Industrial Uses

Used in 5 sectors as 5 functional roles.

  • •Intermediate in Other (100%)Processing as a reactant
  • •Processing aids, specific to petroleum production in Petroleum Refineries (1%)Processing—incorporation into formulation, mixture, or reaction product
  • •Binder in Petroleum Refineries (1%)Processing—incorporation into formulation, mixture, or reaction product
  • •Intermediate in All Other Basic Inorganic Chemical Manufacturing (80%)Processing as a reactant
  • •Intermediate in All Other Chemical Product and Preparation Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
  • •Plating agent in Plastics Product Manufacturing (100%)Use—non-incorporative activities
  • •Catalyst in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS3251-23-8
PubChem CID18616
DTXSIDDTXSID7040314
FormulaCuN2O6
Mol. Weight187.56 g/mol
SMILES[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Cu+2]

Data Sources

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Brief citations

Nitric acid, copper(2+) salt (2:1) (CAS 3251-23-8) https://chemicalindependence.com/chemical/3251-23-8/ EPA CompTox (DSSTox): DTXSID7040314. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID7040314 PubChem: 18616. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/18616 EPA Chemical Data Reporting: 3251-23-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 3251-23-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283429 for CAS 3251-23-8. Reporting year: 2024. https://usatrade.census.gov/