Boron potassium oxide (B5KO8)

CAS 11128-29-3

Companies reported imports and no US production of this chemical to EPA for 2019.

B₂K₂O115.8 g/mol

no molecular structure to draw

US productionZero

Import value, 2024$16M

Import volume4.8K lb

Import dependency100%

Top sourceItaly 37%

Production is reported production, not a complete census of factories. Production reporting year: 2019. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Boron potassium oxide (B5KO8) · US import value by year

2013: $10M · Peak 2022: $23M · 2024: $16M · 2025: $13M

Where It Comes From

Customs basis: HS 284020 · basket

EPA reports by year

2019: US production Zero · Imports 4.8K lb

These shares come from HS customs code 284020, which covers 16 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).

IT 37%ItalyIN 19%IndiaCN 16%ChinaTR 12%TurkeyPE 5%Peru

South Korea
Brazil
Mexico
United Kingdom
Finland
Japan
Netherlands

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.

U.S. Borax

Why It Matters

Sectors

Core 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

•Intermediate in All Other Chemical Product and Preparation Manufacturing (0%)Use—non-incorporative activities

Chemical Identity

CAS11128-29-3

PubChem CID6336601

DTXSIDDTXSID9050149

FormulaB2K2O

Mol. Weight115.82 g/mol

SMILES[B].[B].[O-2].[K+].[K+]

Data Sources

EPA CompTox (DSSTox) · DTXSID9050149Retrieved 2026-04-06
PubChem · compound 6336601Retrieved 2026-04-06
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
EPA Chemical Data ReportingReporting year: 2019 · Retrieved 2026-10-04
US Census international tradeReporting year: 2024 · Retrieved 2026-10-04

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Brief citations

Boron potassium oxide (B5KO8) (CAS 11128-29-3) https://chemicalindependence.com/chemical/11128-29-3/ EPA CompTox (DSSTox): DTXSID9050149. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID9050149 PubChem: 6336601. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/6336601 EPA Chemical Data Reporting: 11128-29-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 11128-29-3. Reporting year: 2019. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 284020 for CAS 11128-29-3. Reporting year: 2024. https://usatrade.census.gov/