Sodium sesquicarbonate

CAS 533-96-0

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$116M

Top sourceAustralia 23%

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 283699 · basket

EPA reports by year

2023: US production Confidential · Imports Confidential
2019: US production Confidential · Imports Confidential

These shares come from HS customs code 283699, which covers 26 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries

Country of origin for US imports, from Census customs data (2024).

AU 23%AustraliaDE 17%GermanyCN 15%ChinaPH 13%PhilippinesFI 9%Finland

South Korea
Malaysia
Turkey
Sweden
Czech Republic
Peru
Mexico
Spain
Switzerland
Belgium

Domestic parents -- activity not disclosed (1)

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

Sojitz Corporation Of America

EPA-registered importers (2)

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

Delta Carbona

Solenis

Why It Matters

Sectors

FoodConsumer 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 4 sectors as 3 functional roles.

•pH regulating agent in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product
•Intermediate in All Other Basic Organic Chemical Manufacturing (50%)Processing as a reactant
•Intermediate in Services (50%)Processing—incorporation into formulation, mixture, or reaction product
•Flavoring and nutrient in Food, beverage, and tobacco product manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS533-96-0

PubChem CID10791

DTXSIDDTXSID6049646

FormulaC2HNa3O6

Mol. Weight189.99 g/mol

SMILESC(=O)(O)[O-].C(=O)([O-])[O-].[Na+].[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID6049646Retrieved 2026-04-06
PubChem · compound 10791Retrieved 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 sesquicarbonate (CAS 533-96-0) https://chemicalindependence.com/chemical/533-96-0/ EPA CompTox (DSSTox): DTXSID6049646. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID6049646 PubChem: 10791. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/10791 EPA Chemical Data Reporting: 533-96-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 533-96-0. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283699 for CAS 533-96-0. Reporting year: 2024. https://usatrade.census.gov/