Disodium disilicate

CAS 13870-28-5

Companies reported imports and no US production of this chemical to EPA for 2023.

Molecular structure of 13870-28-5 — 2 Na⁺

US productionZero

Import value, 2024$37M

Import volume62.3K lb

Import dependency100%

Top sourceBrazil 52%

Production is reported production, not a complete census of factories. Production reporting year: 2023. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Disodium disilicate · US import value by year

2013: $13M · Peak 2022: $39M · 2024: $37M · 2025: $29M

Where It Comes From

Customs basis: HS 283919 · narrow

EPA reports by year

2023: US production Zero · Imports 62.3K lb
2019: US production Zero · Imports 119.3K lb

These shares come from HS customs code 283919, which covers 4 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).

BR 52%BrazilCA 28%CanadaPL 5%PolandIN 4%IndiaNL 3%Netherlands

United Kingdom
Austria
Spain
Italy
Lithuania
Hong Kong
Hungary
Australia
Japan
Switzerland

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.

Catexel Nease

EPA-registered importers (1)

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

Delta Carbona

Why It Matters

Sectors

Consumer Products

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

•Abrasives in Soap, Cleaning Compound, and Toilet Preparation Manufacturing (100%)Processing—incorporation into formulation, mixture, or reaction product

Chemical Identity

CAS13870-28-5

PubChem CID61699

DTXSIDDTXSID50891889

FormulaNa2O5Si2

Mol. Weight182.15 g/mol

SMILES[O-][Si](=O)O[Si](=O)[O-].[Na+].[Na+]

Data Sources

EPA CompTox (DSSTox) · DTXSID50891889Retrieved 2026-04-06
PubChem · compound 61699Retrieved 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

Disodium disilicate (CAS 13870-28-5) https://chemicalindependence.com/chemical/13870-28-5/ EPA CompTox (DSSTox): DTXSID50891889. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID50891889 PubChem: 61699. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/61699 EPA Chemical Data Reporting: 13870-28-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 13870-28-5. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 283919 for CAS 13870-28-5. Reporting year: 2024. https://usatrade.census.gov/