CompoundList
Sign in
Oxides and peroxides

Lithium oxide

Also known as Dilithium monoxide, Lithia, Lithium Oxydatum

CAS 12057-24-8Formula Li2OMolar mass 29.88 g/molEC 235-019-5
GHS signal word: Danger. Pictograms: Corrosive, Acute toxicity (severe) 12 suppliers listed Drug substance
Get quotes Compare 12 suppliers
Lithium oxide chemical structure, Li2O, CAS 12057-24-8
2D chemical structure

Key facts

What buyers check first

All properties
Physical form
Crystals
Melting point
1,438 °C
Density
2.013 @25 °C
HS code
282520
Category
Oxides and peroxides
Illustrative photo, closed blue fibre drums on a pallet in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Lithium oxide?

Plain description, key identifiers and synonyms

Lithium oxide is a chemical substance with the molecular formula Li2O and a molar mass of 29.88 g/mol. Its CAS registry number is 12057-24-8. The IUPAC name is dilithium, oxygen(2-).

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dilithium, oxygen(2-)
CAS number
12057-24-8Other or deprecated CAS: 12142-77-7
EC number
235-019-5
Molecular formula
Li2O
UNII
2ON0O9YI0Q
MDL number
MFCD00016183
InChIKey
FUJCRWPEOMXPAD-UHFFFAOYSA-N
InChI
InChI=1S/2Li.O/q2*+1;-2
SMILES (canonical and isomeric)
[Li+].[Li+].[O-2]

Synonyms

  • Dilithium monoxide
  • Lithia
  • Lithium Oxydatum
  • Lithium oxide (Li2O)
  • Lithium monoxide
  • dilithium, oxygen(2-)
  • Lithium oxide (LiO)
  • Lithium monooxide
  • Monolithium monoxide
  • lithium(I) oxide
  • Lithium Oxide (2/1)
  • Lithium Oxide Nanoparticle Dispersion

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Physical form
Crystalsexp.
Melting point
1,438 °Cexp.
Density
2.013 @25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
29.88 g/molcalc.
Exact mass
30.0269 Dacalc.
LogP (octanol/water)
-6.11calc.
Topological polar surface area
28.5 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)

Hazard statements

  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H331Toxic if inhaled.
Precautionary statements (17)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Lithium oxide suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 12 suppliers
12 of 12 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

12 suppliers in 7 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Lithium oxide price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Industrial uses: Dehydrating agent (desiccant), Adsorbent.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Lithium oxide is traded under.

HS 2825.20Exact HS code

Lithium oxide and hydroxide

World exports in 2024
$2.77B
−65.0% vs 2023, imports $2.56B
2019 to 2024
Top exporters
  1. China80.3%
  2. Chile7.1%
  3. United States6.1%
Top importers
  1. South Korea62.8%
  2. Japan24.4%
  3. China5.0%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Lithium oxide is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Lithium oxide, based on the data on this page

What is Lithium oxide?

Lithium oxide is a chemical substance with the molecular formula Li2O and a molar mass of 29.88 g/mol. Its CAS registry number is 12057-24-8. The IUPAC name is dilithium, oxygen(2-).

What is the CAS number of Lithium oxide?

The CAS registry number of Lithium oxide is 12057-24-8. Other or deprecated CAS numbers: 12142-77-7.

What is the molecular formula and weight of Lithium oxide?

The molecular formula of Lithium oxide is Li2O and its molar mass is 29.88 g/mol.

What is Lithium oxide used for?

Industrial uses: Dehydrating agent (desiccant), Adsorbent.

Is Lithium oxide hazardous?

Lithium oxide carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage, causes serious eye damage, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Lithium oxide?

Lithium oxide is usually classified under HS code 282520 (Lithium oxide and hydroxide). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Lithium oxide?

CompoundList lists 12 suppliers of Lithium oxide in United States, India, China, Germany and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Lithium oxide in India?

2 suppliers in India list Lithium oxide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Lithium oxide?

Suppliers quote Lithium oxide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Lithium oxide

Get quotes for Lithium oxide

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Lithium oxide
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Lithium oxide with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/lithium-oxide-12057-24-8" title="Lithium oxide structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Oxides and peroxides or HS code 282520

12 suppliers
Free quotes, contact stays private
Get quotes