Calcium borate (3/2)

CAS 13840-55-6

Boric acid (H3BO3), calcium salt (1:?)

EPA and Census publish no US supply data for this chemical.

Molecular structure of 13840-55-6
3 Ca²⁺
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

EPA and Census publish no US supply data for this chemical.

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS13840-55-6
PubChem CIDNot recorded
DTXSIDDTXSID70930103
FormulaB2Ca3O6
Mol. Weight237.85 g/mol
SMILES[Ca++].[Ca++].[Ca++].[O-]B([O-])[O-].[O-]B([O-])[O-]

Data Sources

Brief citations

Calcium borate (3/2) (CAS 13840-55-6) https://chemicalindependence.com/chemical/13840-55-6/ EPA TSCA Inventory: CAS 13840-55-6. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory