Lithium oxide (Li2O)

CAS 12057-24-8

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

Li₂O29.9 g/mol

no molecular structure to draw

US productionCBI

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

Import value, 2024$12M

Top sourceChile 72%

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 282520 · narrow

EPA reports by year

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

These shares come from HS customs code 282520, which covers 3 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).

CL 72%ChileCN 18%ChinaCH 9%Switzerland

Slovakia
India
Mexico
Japan
United Kingdom
Germany
Belgium
Taiwan
Hong Kong
Canada

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.

Air Products And Chemicals

Honeywell International (123312)

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.

Arkema

Why It Matters

Sectors

HealthEnergyCore 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 3 sectors as 2 functional roles.

•Adsorbent in All Other Chemical Product and Preparation ManufacturingProcessing—incorporation into formulation, mixture, or reaction product
•Adsorbent in Industrial Gas Manufacturing (100%)Use—non-incorporative activities
•Dehydrating agent (desiccant) in Pharmaceutical and Medicine Manufacturing (100%)Use—non-incorporative activities

Vendor Pricing

$1.22/gAaron Chemicals LLC

CountryHong Kong

Pack$122.00 / 100 g

Purity99%

Vendors11 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

10 more vendors

Vendor	Country	$/g	Pack	Purity
Angene Chemical	China → Hong Kong	$1.32	100 g	99%
A2B Chem LLC	United States	$2.13	500 g	97%
AA BLOCKS	United States	$2.80	500 g	97%
Fluorochem UK	United Kingdom	$2.92	25 g	98.5%
AK Scientific, Inc.	United States	$3.82	250 g	98%
Sigma-Aldrich (Rush Stock)	Germany	$8.02	100 g	97%
Sigma-Aldrich	Germany	$8.02	100 g	97%
Angene International Limited	United States	$8.96	25 g	98%
AstaTech (2 weeks)	United States	$10.79	100 g	98%
Angene	China → Hong Kong	$4266.67	30 mg	99%

Chemical Identity

CAS12057-24-8

PubChem CID166630

DTXSIDDTXSID10893208

FormulaLi2O

Mol. Weight29.9 g/mol

SMILES[Li+].[Li+].[O-2]

Data Sources

EPA CompTox (DSSTox) · DTXSID10893208Retrieved 2026-04-06
PubChem · compound 166630Retrieved 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

Lithium oxide (Li2O) (CAS 12057-24-8) https://chemicalindependence.com/chemical/12057-24-8/ EPA CompTox (DSSTox): DTXSID10893208. Retrieved 2026-04-06. https://comptox.epa.gov/dashboard/chemical/details/DTXSID10893208 PubChem: 166630. Retrieved 2026-04-06. https://pubchem.ncbi.nlm.nih.gov/compound/166630 EPA Chemical Data Reporting: 12057-24-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting EPA Chemical Data Reporting: CAS 12057-24-8. Reporting year: 2023. https://www.epa.gov/chemical-data-reporting US Census international trade: HS 282520 for CAS 12057-24-8. Reporting year: 2024. https://usatrade.census.gov/