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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 3939Generated: October 23, 2026

Lithium Hydroxide

LiOH · ithium hydroxide · LithiuM hydroxide,anhydro · Lithium hydroxide ,99% [anhydrous] · "Lithium hydroxide, anhydrous/ 99%" · Lithium hydoxide · Lithium hydroxide · HEXANE, 95+%, PRA GRADE

https://huagongshe.com/en/chemical/3939

Lithium Hydroxide molecular structure

Identifiers & Physical Properties

CAS No.1310-65-2
Molecular formulaHLiO
Average molar mass24 g/mol
Monoisotopic mass24.0187442 g/mol
SMILES[Li+].[OH-]
InChIKeyWMFOQBRAJBCJND-UHFFFAOYSA-M
PubChem CID3939
ChEBICHEBI:33979
EC No.215-183-4
DTXSIDDTXSID70893845

Chemical & Physical Properties

Topological polar surface area1
Hydrogen bond donors1
Hydrogen bond acceptors1
Rotatable bonds0
Heavy atoms2
Formal charge0
Complexity2
Chemical classesOther Classes -> Bases
PolymersPlastics -> N.a.
CosmeticsBufferingHair waving or straightening
Density2.54 g/cm³1.45 @25 °C1.43
SolubilitySolubility in water, g/100ml at 20 °C: 12.8 (good)water: soluble71g/L at 20°C113 g/L (20 ºC)
Boiling point1626 °C @760 [mm Hg]925°C
Decomposition924 °C
Melting point450-471 °C473 °C470 °C (dec.) (lit.)
Vapor pressureVapor pressure, Pa at 20 °C: (negligible)
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physical DescriptionLithium hydroxide, solution appears as a clear to water-white liquid which may have a pungent odor. Contact may cause severe irritation to skin, eyes, and mucous membranes. It may be toxic by ingestion, inhalation and skin absorption. It is used to make other chemicals.Large CrystalsWet SolidDry PowderWhite crystals or granular powder[AIHA] Readily absorbs carbon dioxide and water from air[Merck Index] White odorless granulesHygroscopic[Alfa Aesar MSDS]COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS.
Bulk density550kg/m3
Storage conditionsStore below +30°C.
pKa (acidity coefficient)14[at 20 ℃]
Physical stateSolid
Specific gravity2.54
ColorWhite to light yellow
Odorodorless
pH12 (50g/l, H2O, 50℃)
Specific heat capacityCp(crystal): 2.07 J/(g·K)Cp(gas): 1.92 J/(g·K), at 25℃
SensitivityAir Sensitive & Hygroscopic
Merck14,5534
StabilityStable. Incompatible with moisture. strong acids, carbon dioxide.
Cosmetics Ingredients FunctionsHAIR WAVING OR STRAIGHTENINGBUFFERING
InChI1S/Li.H2O/h1H2/q+1/p-1
InChIKeyWMFOQBRAJBCJND-UHFFFAOYSA-M
SMILES[Li+].[OH-]
Indirect Additives used in Food Contact SubstancesLITHIUM HYDROXIDE
FDA 21 CFR175.390
CAS DataBase Reference1310-65-2(CAS DataBase Reference)
FDA UNII903YL31JAS
NIST Chemistry ReferenceLithium hydroxide(1310-65-2)
EPA Substance Registry SystemLithium hydroxide (1310-65-2)
UNSPSC Code12352305
NACRESNA.24
GHS pictogramGHS05,GHS06,GHS08
Signal wordDanger
GHS hazard statementsH301+H331-H314-H360-H370
GHS precautionary statementsP501-P260-P270-P202-P201-P271-P264-P280-P308+P311-P303+P361+P353-P301+P330+P331-P363-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310-P403+P233-P405
Hazard symbolsC
Risk statements (R)52/53-35-20/22-22-34-23
Safety statements (S)45-36/37/39-26-22
UN transport numberUN 2679 8/PG II/III (LITHIUM HYDROXIDE SOLUTION)
Water hazard class (WGK)1
RTECS numberOJ6307070
TSCA inventory statusTSCA listed
Hazard class8Acute Tox. 4 OralEye Dam. 1Skin Corr. 1B
Packing groupII
Customs code28252010
Storage class8A - Combustible corrosive hazardous materials
ToxicityLD50 orally in Rabbit: 210 mg/kg
REACH registrationsActive
Limited quantities1 Kg (2.2 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 9.7% (95 of 980) of reports.DangerH301 (12.6%): Toxic if swallowed [Danger Acute toxicity, oral]P260, P262, P264, P264+P265, P270, P280, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P361+P364, P363, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 980 reports by companies from 28 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationChemical: Lithium hydroxide (Li(OH))Lithium hydroxide (Li(OH)) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Lithium hydroxide (Li(OH)) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 17-02-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/14855Lithium hydroxide: Does not have an individual approval but may be used under an appropriate group standard
Other safety informationIMAP assessments - Lithium hydroxide: Human health tier II assessment
DOT labelCorrosive
Fire hazardsExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.Not combustible.
Health hazardsExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:· TOXIC and/or CORROSIVEinhalation, ingestion or skin contact with material may cause severe injury or death.
Hazards summaryCorrosive to skin[Quick CPC] High inhalation exposure can cause pulmonary edema[ICSC] Causes abnormal liver function test results in animal experiments[RTECS] See Lithium oxide.
DOT ID and guide2680 1542679 154
Reactive groupBases, Strong
UN classificationUN Hazard Class: 8UN Pack Group: II
Reactivity AlertsKnown Catalytic Activity
Reactivity ProfileLITHIUM HYDROXIDE, SOLUTION neutralizes acids exothermically to form salts plus water. Reacts with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. May initiate polymerization reactions in polymerizable organic compounds, especially epoxides. May generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. May serve as a catalyst. Reacts when heated above about 84 °C with aqueous solutions of reducing sugars other than sucrose, to evolve toxic levels of carbon monoxide [Bretherick, 5th Ed., 1995].
Chemical DangersDecomposes on heating above 924 °C . This produces toxic fumes. The solution in water is a strong base. It reacts violently with acid and is corrosive to aluminium, tin and zinc. This produces flammable/explosive gas (hydrogen - see ICSC 0001). Reacts with strong oxidants.
Fire fightingExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:In case of fire in the surroundings, use appropriate extinguishing media.
First aid measuresFresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.Remove contaminated clothes. Rinse skin with plenty of water or shower for at least 15 minutes. Refer immediately for medical attention.Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention.Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer immediately for medical attention.
Accidental release measures· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.
First aidExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:General First Aid:
Safe storageSeparated from food and feedstuffs, strong oxidants and strong acids. Store only in original container. Dry. Well closed. Store in an area without drain or sewer access.
Exposure control and personal protection· Wear positive pressure self-contained breathing apparatus (SCBA).
Nonfire spill responseExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:
Spillage disposalPersonal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered plastic containers. Carefully collect remainder. Then store and dispose of according to local regulations.
Isolation and EvacuationExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:Immediate precautionary measure
Eye PreventionWear face shield or eye protection in combination with breathing protection.
Inhalation RiskEvaporation at 20 °C is negligiblea harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Skin PreventionProtective gloves. Protective clothing.
Adverse effectsNeurotoxin - Other CNS neurotoxin
Exposure routesThe substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Serious local effects by all routes of exposure.
Signs and SymptomsCough. Sore throat. Burning sensation. Shortness of breath. Laboured breathing.Redness. Pain. Serious skin burns. Blisters.Redness. Pain. Blurred vision. Severe deep burns.Abdominal pain. Burning sensation in the throat and chest. Nausea. Vomiting. Shock or collapse.
ICSC Environmental DataThis substance may be hazardous to the environment. Special attention should be given to aquatic organisms.
Toxicity DataLC50 (rat) = 960 mg/m3/4hr
Water hazard class (WGK)1
TSCA inventory statusTSCA listed
RTECS numberOJ6307070
UN transport numberUN 2680 8/PG II (LITHIUM HYDROXIDE)
Customs code28252010
ToxicityLD50 orally in Rabbit: 210 mg/kg
Risk statements (R)52/53-35-20/22-22-34-23
Signal wordDanger
GHS pictogramGHS05,GHS06,GHS08
Hazard symbolsC
Safety statements (S)45-36/37/39-26-22
Hazard class8Acute Tox. 4 OralEye Dam. 1Skin Corr. 1B
Storage class8A - Combustible corrosive hazardous materials
Packing groupII
GHS hazard statementsH301+H331-H314-H360-H370
Limited quantities1 Kg (2.2 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
REACH registrationsActive
GHS precautionary statementsP501-P260-P270-P202-P201-P271-P264-P280-P308+P311-P303+P361+P353-P301+P330+P331-P363-P301+P310+P330-P304+P340+P310-P305+P351+P338+P310-P403+P233-P405

Applications & Uses

Uses

Lithium hydroxide is used as an electrolyte in certain alkaline storage batteries; and in the production of lithium soaps. Other uses of this compound include its catalytic applications in esterification reactions in the production of alkyd resins; in photographic developer solutions; and as a starting material to prepare other lithium salts.

Uses

The compound is soluble in water. The compound is used in the formulation of lithium soaps used in multipurpose greases; also in the manufacture of various lithium salts; and as an additive to the electrolyte of alkaline storage batteries. LiOH also is an efficient, light-weight absorbent for carbon dioxide.

Uses

Lithium hydroxide is used as a heat transfer medium, as a storage-battery electrolyte and also used for the production of lithium greases. It is also used in ceramics, in some portland cement formulations, in the absoption of carbondioxide from sealed enviornments such as submarines, spacecrafts and breathing apparatus. It is used in esterification reactions, as stabilizer in photographic developments and as a coolant in pressurized water reactors for corrosion control.

Uses

Lithium hydroxide is an alkali metal hydroxide that is used in storage batteries and soaps and as CO2 absorber in spacecrafts.

General Description

Lithium hydroxide, solution appears as a clear to water-white liquid which may have a pungent odor. Contact may cause severe irritation to skin, eyes, and mucous membranes. It may be toxic by ingestion, inhalation and skin absorption. It is used to make other chemicals.

Preparation & Synthesis

Preparation

Lithium hydroxide is prepared by the reaction of lithium carbonate with calcium hydroxide: Li2CO3 + Ca(OH)2 → 2LiOH + CaCO3 Calcium carbonate is filtered out and the solution is evaporated and crystallized. The product obtained is the monohydrate, LiOH•H2O. The anhydrous compound is obtained by heating the hydrate above 100°C in vacuum or carbon dioxide-free air. The hydroxide also may be prepared by treating lithium oxide with water.