Acids & Salts Available — Bulk Only

Lithium Hydroxide Monohydrate (LiOH·H2O)

CAS 1310-66-3 · Formula H3LiO2 · MW 42.0 g/mol

The hydrated, shippable form of lithium hydroxide feeding battery, grease, and CO2-scrubbing applications. It is used as a precursor for lithium-ion battery cathode materials, a source of lithium for lubricating-grease thickeners, a carbon-dioxide absorbent, and a catalyst in esterification and polymerization.

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UN Number
UN 2680
Hazard Class
Class 8
HS Code
2825.20
At a Glance
Material Family
Acids & Salts
Record Type
Pure compound
Primary Role
pH Adjustment · Synthesis Intermediate
Industries Served
Applications & Use Cases
  • Battery materials: Precursor for nickel-rich lithium-ion cathodes.
  • Lubricating greases: Lithium source for grease thickeners.
  • CO2 absorption: Carbon-dioxide scrubbing in air purification.
  • Catalysis: Catalyst for esterification and polymerization.
Physical Properties
Melting Point
450-471 °C
Density
1.51 g/cm³
Solubility
Solubility in water, g/100ml at 20 °C: 19.1 (good)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 8 placard
UN / DOT NumberUN 2680
Hazard Class / DivisionClass 8
Packing GroupII
Proper Shipping NameLithium hydroxide

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2825 . 20
Chapter 28
Inorganic chemicals; compounds of precious metals and rare-earth metals
Heading 28.25
Internationally harmonized (WCO HS)
Subheading 2825.20
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
1310-66-3
Molecular Formula
H3LiO2
Molecular Weight
42.0 g/mol
IUPAC Name
lithium;hydroxide;hydrate
PubChem CID
InChI Key
GLXDVVHUTZTUQK-UHFFFAOYSA-M
Synonyms & Trade Names
Lithium hydroxide monohydrate Lithium hydroxide, monohydrate Lithium hydroxide (Li(OH)), monohydrate Lithium hydroxide (USP) lithium hydroxide hydrate lithium;hydroxide;hydrate Lithium-6Li hydroxide monohydrate Lithium Hydroxide Hydrate; LiOH-hydrate LiOH.hydrate LiOH water water LiOH lithiumhydroxid-hydrate Lithium hydroxide H2O lithium hydroxide water lithium hydroxide.water
Full Description

Lithium hydroxide monohydrate (LiOH·H2O, CAS 1310-66-3) is the hydrated, common commercial form of lithium hydroxide. It is used as a precursor for lithium-ion battery cathode materials, a source of lithium for lubricating-grease thickeners, a carbon-dioxide absorbent, and a catalyst in esterification and polymerization.

Frequently Asked Questions

What is the difference between lithium hydroxide and lithium hydroxide monohydrate?

Lithium hydroxide monohydrate (LiOH·H2O, CAS 1310-66-3) is the hydrated, common commercial form carrying one water of crystallization, whereas anhydrous lithium hydroxide (LiOH, CAS 1310-65-2) contains no bound water. The monohydrate is more stable to handle; account for the water content when calculating lithium dosing.

What is the formula for lithium hydroxide monohydrate?

The formula is LiOH·H2O (listed as H3LiO2), CAS 1310-66-3. Its molecular weight is higher than anhydrous LiOH because of the bound water molecule, which matters for stoichiometric calculations in cathode and grease production.

What is lithium hydroxide monohydrate used for?

It is used as a precursor for nickel-rich lithium-ion battery cathode materials, a lithium source for lubricating-grease thickeners, a carbon-dioxide absorbent in air purification, and as a catalyst in esterification and polymerization.

How does lithium hydroxide monohydrate ship under DOT regulations?

Lithium hydroxide monohydrate is assigned UN 2680 (LITHIUM HYDROXIDE, MONOHYDRATE) and ships as a corrosive solid. Packaging, labeling, and transport classification follow the SDS and applicable regulations; confirm packaging with your quote.

Does RawSource supply lithium hydroxide monohydrate in bulk, and with what documentation?

RawSource distributes lithium hydroxide monohydrate in bulk industrial quantities under HS code 2825.20. A Certificate of Analysis and Safety Data Sheet (MSDS) ship with each order; request both with a bulk quote for your target volume and battery- or technical-grade requirement.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.