Sodium tetraborate (Na2B4O7)

CAS 1330-43-4

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

Molecular structure of 1330-43-4 — 2 Na⁺

US productionCBI

Confidential Business Information. The EPA withholds this volume because publishing it could reveal the reporting company's trade secrets.

Import value, 2024$3M

Top sourceTurkey 93%

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 284011 · 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).

TR 93%TurkeyIN 7%India

Canada

EPA-registered manufacturers (1)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Henkel

Domestic parents -- activity not disclosed (2)

EPA records name a US company for this chemical but do not disclose whether the company made it here or imported it.

Hydrite Chemical

Rio Tinto America

EPA-registered importers (11)

Companies that report making or importing this chemical to the EPA. Registration is US-centric and does not indicate import origin.

Geschwister Oetker Beteiligungen Kg · DE Germany

Marubeni · JP Japan

Wieland-Werke Ag · DE Germany

American Borate

Budenheim Usa

Show all 11

Haifa North America

Macrosource

Recochem

S.C. Johnson & Son

Target

Wieland Holdings

Why It Matters

Sectors

AgricultureWaterTransportationConstructionMetals & MiningConsumer ProductsCore 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 9 sectors as 9 functional roles.

•Bleaching agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (17%)Processing—incorporation into formulation, mixture, or reaction product
•Flux agent in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (68%)Processing as a reactant
•Adhesion/cohesion promoter in Fabricated Metal Product Manufacturing (59%)Processing—incorporation into formulation, mixture, or reaction product
•Adhesion/cohesion promoter in Transportation Equipment Manufacturing (41%)Processing—incorporation into formulation, mixture, or reaction product
•Anti-freeze agent in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
•Hardener in Primary Metal Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Filler in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product
•Adhesion/cohesion promoter in Utilities (32%)Processing as a reactant
•Bleaching agent in All Other Chemical Product and Preparation Manufacturing (68%)Use—non-incorporative activities
•Heat stabilizer in All Other Chemical Product and Preparation Manufacturing (10%)Processing as a reactant
•Hardener in Non-metallic Mineral Product Manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other non-metallic mineral product manufacturing) (50%)Processing—incorporation into formulation, mixture, or reaction product
•Flame retardant in All Other Basic Inorganic Chemical Manufacturing (10%)Processing—incorporation into formulation, mixture, or reaction product
•Soil amendments (fertilizers) in Wholesale and Retail Trade (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS1330-43-4

PubChem CID10219853

DTXSIDDTXSID2034388

FormulaB4Na2O7

Mol. Weight201.2 g/mol

SMILESB1(OB2OB(OB(O1)O2)[O-])[O-].[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID2034388Retrieved 2026-04-06
PubChem · compound 10219853Retrieved 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

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Brief citations

Sodium tetraborate (Na2B4O7) (CAS 1330-43-4) https://chemicalindependence.com/chemical/1330-43-4/ EPA CompTox (DSSTox): DTXSID2034388. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID2034388 PubChem: 10219853. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10219853 EPA Chemical Data Reporting: 1330-43-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 1330-43-4. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 284011 for CAS 1330-43-4. Reporting year: 2024. https://usatrade.census.gov/