Sodium hydroxide
CAS 1310-73-2
U.S. production volumes are classified as confidential business information.
US productionCBI
Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.
Import value, 2024$283M
Top sourceTaiwan 24%
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 281511, 281512 · exact
EPA reports by year
- 2023
- US production Confidential · Imports Confidential
- 2019
- US production Confidential · Imports Confidential
Source Countries
Country of origin for US imports, from Census customs data (2024).
TW 24%TaiwanJP 21%JapanCA 12%CanadaBE 9%BelgiumKR 9%South Korea
- Switzerland
- Spain
- Italy
- Israel
- Saudi Arabia
- Czech Republic
- United Arab Emirates
- Poland
- Dominican Republic
- Guatemala
- Denmark
- United Kingdom
- Singapore
- Kenya
- Austria
EPA-registered manufacturers (32)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Basf Se · DE Germany
Shin-Etsu Chemical · JP Japan
Arconic
Ascensus Specialties
Basf
Show all 32
Brainerd Chemical
Brenntag
Calca Solutions
Calumet Specialty Products Partners
Carbonfree Chemicals Spe 1 Holdings
Cargill, Incorporated
Covestro
Dover Chemical
Dynachem
Enterprise Products Operating
Finch Paper
Formosa Plastics Corporation, U.S.A.
Gulf Coast Growth Ventures
Hawkins
Jtm Products
Kuehne Chemical
Life Technologies
Macdermid
Minerals Technologies
Nalco- An Ecolab
Occidental Petroleum
Olin
Shintech Louisiana
Tower Extrusions
Tri-Chem Industries
Trinity Manufacturing
Westlake
Domestic parents -- activity not disclosed (17)
EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.
Avantor
Blue Tree Holdings
Brenntag Lubricants
Calfrac Well Services
Colonial Group
Show all 17
Erco (Us) Holdings
Genesis Energy
Greenchem Industries
Halliburton
Harcros Chemicals
Hydrite Chemical
Independent Chemical
Kh Chemicals Na
Mitsubishi Corporation (Americas)
Polyventive
Pvs Dx
Schlumberger
EPA-registered importers (51)
Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.
Brenntag · DE Germany
Canada Imperial Oil · CA Canada
Cci Holding · JP Japan
Chemtrade Logistics · CA Canada
Marubeni · JP Japan
Show all 51
Ravago S A · LU Luxembourg
Shin-Etsu Chemical · JP Japan
Syensqo Sa · BE Belgium
Tosoh · JP Japan
Univar Solutions Canada · CA Canada
Ambyth Chemical
Atotech Manufacturing
Atotech Usa
Bei Hawaii
Brenntag Global Marketing
Catalynt Solutions
Cci Manufacturing Il
Cellmark Usa
Chemical Distribution Network
Chemtrade Holdco Us Inc (Electrochem)
Clarios
Delta Carbona
ExxonMobil
Haviland Enterprises
Henkel
Hollyfrontier Lsp Us Holding
Industrial Chemicals
Ineos Oligomers
Kemira Water Solutions
Kg International
Kik International
Marubeni America
Norman, Fox &
Old World Industries
Phibro Animal Health
Recochem
Riverside Specialty Chemicals
S.C. Johnson & Son
Se Tylose Louisiana
Solenis
Solvay
Thatcher
Tosoh America
Transchem
Tricon International
United Refining
Univar Solutions Usa
Valudor Products
Wego Chemical Group
Wilbur-Ellis Holdings Ii
Wintersun International
Why It Matters
Sectors
HealthAgricultureFoodEnergyWaterElectronicsTransportationConstructionMetals & MiningPlastics & RubberTextilesConsumer ProductsPaints & CoatingsPaper & PrintingCore Chemicals
Downstream UsesNot recorded
FDA Shortage Status
Whether any manufacturer currently reports this drug as in shortage on the FDA Drug Shortages database. "Active Shortage" means at least one presentation has status "current."
No FDA shortage records
Industrial Uses
Used in 34 sectors as 34 functional roles.
- •Bleaching agent in Paper ManufacturingUse—non-incorporative activities
- •Ion exchange agent in Pesticide, Fertilizer, and Other Agricultural Chemical ManufacturingUse—non-incorporative activities
- •Solvent in Soap, Cleaning Compound, and Toilet Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Wholesale and Retail TradeProcessing—incorporation into formulation, mixture, or reaction product
- •Processing aids, specific to petroleum production in Oil and Gas Drilling, Extraction, and Support activitiesUse—non-incorporative activities
- •Ion exchange agent in All Other Basic Inorganic Chemical ManufacturingUse—non-incorporative activities
- •pH regulating agent in All Other Chemical Product and Preparation Manufacturing (100%)Use—non-incorporative activities
- •Soil amendments (fertilizers) in Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing (20%)Processing—incorporation into formulation, mixture, or reaction product
- •pH regulating agent in Electrical Equipment, Appliance, and Component Manufacturing (100%)Processing as a reactant
- •pH regulating agent in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant
- •Solvent in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Ion exchange agent in Paper Manufacturing (0%)Processing as a reactant
- •Lubricating agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Plastics Material and Resin Manufacturing (100%)Processing as a reactant
- •Bleaching agent in Other (8%)Processing as a reactant
- •Processing aids, specific to petroleum production in Petroleum Refineries (15%)Processing as a reactant
- •Antioxidant in Paper Manufacturing (59%)Processing as a reactant
- •Etching agent in Primary Metal ManufacturingUse—non-incorporative activities
- •Adhesion/cohesion promoter in Wood Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Soap, Cleaning Compound, and Toilet Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Fabricated Metal Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Machinery Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Transportation Equipment Manufacturing (19%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Electrical Equipment, Appliance, and Component Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Dye in Fabricated Metal Product Manufacturing (24%)Processing—incorporation into formulation, mixture, or reaction product
- •Dye in Transportation Equipment Manufacturing (24%)Processing—incorporation into formulation, mixture, or reaction product
- •Dye in Electrical Equipment, Appliance, and Component Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
- •Dye in Computer and Electronic Product Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Computer and Electronic Product Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Dye in Machinery Manufacturing (1%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Machinery Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Fabricated Metal Product Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Electrical Equipment, Appliance, and Component Manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Transportation Equipment Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Adhesion/cohesion promoter in Computer and Electronic Product Manufacturing (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Inorganic Chemical ManufacturingUse—non-incorporative activities
- •Bleaching agent in Soap, Cleaning Compound, and Toilet Preparation ManufacturingProcessing as a reactant
- •Intermediate in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
- •Intermediate in Primary Metal ManufacturingUse—non-incorporative activities
- •Plating agent in Paint and Coating Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Catalyst in Pharmaceutical and Medicine ManufacturingUse—non-incorporative activities
- •pH regulating agent in Oil and Gas Drilling, Extraction, and Support activities (100%)Use—non-incorporative activities
- •pH regulating agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in Food, beverage, and tobacco product manufacturing (0%)Use—non-incorporative activities
- •Plating agent in Fabricated Metal Product Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •pH regulating agent in Food, beverage, and tobacco product manufacturing (100%)Use—non-incorporative activities
- •Anti-freeze agent in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Cleaning agent in All Other Basic Inorganic Chemical Manufacturing (100%)Processing—repackaging
- •Intermediate in Petrochemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in All Other Basic Organic Chemical Manufacturing (58%)Processing as a reactant
- •pH regulating agent in All Other Basic Organic Chemical Manufacturing (14%)Processing as a reactant
- •pH regulating agent in Utilities (9%)Use—non-incorporative activities
- •Corrosion inhibitor in All Other Chemical Product and Preparation Manufacturing (100%)Processing as a reactant
- •pH regulating agent in Petroleum Refineries (19%)Processing as a reactant
- •pH regulating agent in Not Known or Reasonably Ascertainable (27%)Processing as a reactant
- •Catalyst in Wholesale and Retail Trade (2%)Processing—incorporation into formulation, mixture, or reaction product
- •Fuel agents in Petrochemical Manufacturing (2%)Processing as a reactant
- •pH regulating agent in Printing Ink ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •CBI in CBICBI
- •Catalyst in Petroleum Refineries (100%)Processing as a reactant
- •Flocculating agent in Services (2%)Use—non-incorporative activities
- •Flocculating agent in Plastics Product Manufacturing (1%)Use—non-incorporative activities
- •Flocculating agent in All Other Basic Inorganic Chemical Manufacturing (8%)Use—non-incorporative activities
- •Flocculating agent in Paper Manufacturing (60%)Use—non-incorporative activities
- •Flocculating agent in Food, beverage, and tobacco product manufacturing (8%)Use—non-incorporative activities
- •Flocculating agent in All Other Chemical Product and Preparation Manufacturing (1%)Processing—repackaging
- •Flocculating agent in Mining (except Oil and Gas) and support activities (42%)Use—non-incorporative activities
- •Plating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Plating agent in Computer and Electronic Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Defoamer in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Chemical reaction regulator in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Etching agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Chelating agent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Mining (except Oil and Gas) and support activities (53%)Use—non-incorporative activities
- •Reducing agent in All Other Chemical Product and Preparation ManufacturingProcessing as a reactant
- •Swelling agent in Organic Fiber Manufacturing (100%)Processing as a reactant
- •pH regulating agent in Primary Metal Manufacturing (40%)Use—non-incorporative activities
- •Adsorbent in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Catalyst in All Other Basic Inorganic Chemical ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •pH regulating agent in Adhesive Manufacturing (20%)Processing as a reactant
- •Ion exchange agent in Miscellaneous Manufacturing (20%)Use—non-incorporative activities
- •Leaching agent in Primary Metal Manufacturing (10%)Use—non-incorporative activities
- •Leaching agent in Paper Manufacturing (20%)Use—non-incorporative activities
- •Dye in Textiles, apparel, and leather manufacturing (5%)Use—non-incorporative activities
- •Reducing agent in Oil and Gas Drilling, Extraction, and Support activitiesProcessing—incorporation into formulation, mixture, or reaction product
- •Stabilizing agent in Plastics Material and Resin Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Thickening agent in Oil and Gas Drilling, Extraction, and Support activities (0%)Processing—incorporation into formulation, mixture, or reaction product
- •Intermediate in Food, beverage, and tobacco product manufacturingProcessing as a reactant
- •pH regulating agent in OtherProcessing as a reactant
- •Catalyst in All Other Basic Organic Chemical Manufacturing (1%)Processing as a reactant
- •Intermediate in Soap, Cleaning Compound, and Toilet Preparation ManufacturingProcessing as a reactant
- •pH regulating agent in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Chemical reaction regulator in Primary Metal Manufacturing (100%)Processing—incorporation into article
- •Anti-scaling agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (75%)Use—non-incorporative activities
- •Cleaning agent in All Other Chemical Product and Preparation Manufacturing (25%)Use—non-incorporative activities
- •Processing aids, specific to petroleum production in All Other Basic Inorganic Chemical ManufacturingUse—non-incorporative activities
- •Processing aids, specific to petroleum production in All Other Basic Organic Chemical ManufacturingUse—non-incorporative activities
- •Etching agent in Fabricated Metal Product Manufacturing (92%)Use—non-incorporative activities
- •Bleaching agent in Wholesale and Retail Trade (14%)Processing—repackaging
- •Softener and conditioner in Paper ManufacturingUse—non-incorporative activities
- •Defoamer in UtilitiesUse—non-incorporative activities
- •pH regulating agent in Mining (except Oil and Gas) and support activitiesProcessing—incorporation into formulation, mixture, or reaction product
- •Anti-scaling agent in UtilitiesProcessing as a reactant
- •Catalyst in Agriculture, Forestry, Fishing and Hunting (100%)Processing as a reactant
- •Reducing agent in All Other Basic Inorganic Chemical Manufacturing (100%)Processing as a reactant
- •Sizing agent in All Other Chemical Product and Preparation Manufacturing (1%)Processing as a reactant
- •Anti-adhesive/cohesive in All Other Basic Organic Chemical Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
- •Etching agent in Computer and Electronic Product ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
- •Diluent in Food, beverage, and tobacco product manufacturing (0%)Processing—incorporation into formulation, mixture, or reaction product
Chemical Identity
CAS1310-73-2
PubChem CID14798
DTXSIDDTXSID0029634
FormulaHNaO
Mol. Weight39.997 g/mol
SMILES[OH-].[Na+]
Data Sources
- EPA CompTox (DSSTox) · DTXSID0029634Retrieved 2026-04-06
- PubChem · compound 14798Retrieved 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
Sodium hydroxide (CAS 1310-73-2) https://chemicalindependence.com/chemical/1310-73-2/ EPA CompTox (DSSTox): DTXSID0029634. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID0029634 PubChem: 14798. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/14798 EPA Chemical Data Reporting: 1310-73-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1310-73-2. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 281511,281512 for CAS 1310-73-2. Reporting year: 2024. https://usatrade.census.gov/