English Safety Data Sheet Database 中文版 MSDS

Lithium hydroxide, monohydrate

CAS No. 1310-66-3 | PubChem CID 168937
Section 1. Identification
Chemical NameLithium hydroxide, monohydrate CAS No.1310-66-3
Synonymslithiumhydrate; lithium hydroxide monohydrate Chinese Name氢氧化锂
Molecular FormulaLiOH Molecular Weight41.9627
UN No.2680 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS05 · Corrosive GHS06 · Acute Toxic GHS07 · Irritant GHS08 · Health Hazard
Hazard Statements H301H311H302H314H318H331H336H360H362H370H372H361H373
Precautionary Statements P260P261P262P264P264+P265P270P271P280P301+P316P301+P317P301+P330+P331P302+P352P302+P361+P354P304+P340P305+P354+P338P316P317P321P330P361+P364P363P403+P233P405P501P203P263P308+P316P318P319

Section 2. Hazards Identification

H301+H311 (17.8%): Toxic if swallowed or in contact with skin [Danger Acute toxicity, oral; acute toxicity, dermal]

H301 (31.7%): Toxic if swallowed [Danger Acute toxicity, oral]

H302 (61.1%): Harmful if swallowed [Warning Acute toxicity, oral]

H311 (17.8%): Toxic in contact with skin [Danger Acute toxicity, dermal]

H314 (95%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H318 (40.8%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

H331 (13.4%): Toxic if inhaled [Danger Acute toxicity, inhalation]

P260, P261, P262, P264, P264+P265, P270, P271, 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, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 584 reports by companies from 26 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H302: Harmful if swallowed [Warning Acute toxicity, oral]

H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]

H360: May damage fertility or the unborn child [Danger Reproductive toxicity]

H362: May cause harm to breast-fed children [Reproductive toxicity, effects on or via lactation]

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

P203, P260, P261, P263, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P319, P321, P330, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

H331: Toxic if inhaled [Danger Acute toxicity, inhalation]

H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]

P203, P260, P261, P264, P264+P265, P270, P271, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P319, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

P260, P261, P264, P264+P265, P270, P271, P280, P301+P316, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P308+P316, P316, P317, P319, P321, P330, P363, P403+P233, P405, and P501 (click each P-code to see the statement)

P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P363, P405, and P501 (click each P-code to see the statement)

Section 4. First-Aid Measures

Fresh 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.

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Refer to the "General First Aid" section. Specific First Aid: For corrosives, in case of contact, immediately flush skin or eyes with running water for at least 30 minutes. Additional flushing may be required. (ERG, 2024)

Section 5. Fire-Fighting Measures

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

SMALL FIRE: Dry chemical, CO2 or water spray.

LARGE FIRE: Dry chemical, CO2, alcohol-resistant foam or water spray. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal.

FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. (ERG, 2024)

In case of fire in the surroundings, use appropriate extinguishing media.

Section 6. Accidental Release Measures

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)

Personal 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.

Section 7. Handling and Storage

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS. (ERG, 2024)

Separated 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.

Section 8. Exposure Controls / Personal Protection

0.16 [mg/m3]

1.8 [mg/m3]

74 [mg/m3]

(inhalable fraction): 0.2 mg/m

Evaporation at 20 °C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest.

Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use local exhaust or breathing protection.

Protective gloves. Protective clothing.

Wear face shield or eye protection in combination with breathing protection.

Do not eat, drink, or smoke during work.

Section 9. Physical and Chemical Properties

Small colorless crystals. Denser than water. Contact may cause severe irritation to skin, eyes, and mucous membranes. Toxic by ingestion, inhalation and skin absorption. Used to make electric storage batteries, soaps, and lubricants.

Dry Powder

Colorless hygroscopic solid; [ICSC] White odorless crystalline powder; [Alfa Aesar MSDS]

COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS.

450-471 °C

Solubility in water, g/100ml at 20 °C: 19.1 (good)

1.51 g/cm³

1.51 @25 °C

Metals -> Metals, Inorganic Compounds

Corrosives

Reactive agents - 1st degree

Section 10. Stability and Reactivity

Soluble in water; heat of dissolution may generate steam and cause spattering.

Bases, Strong

Known Catalytic Activity

Water-Reactive

LITHIUM HYDROXIDE, MONOHYDRATE 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].

Section 11. Toxicological Information

The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Serious local effects by all routes of exposure.

Cough. 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.

Dermatotoxin - Skin burns.

Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.

This substance may be hazardous to the environment. Special attention should be given to aquatic organisms.

Section 12. Ecological Information

This substance may be hazardous to the environment. Special attention should be given to aquatic organisms.

Section 14. Transport Information

Corrosive

Do not transport with food and feedstuffs.

Source: PubChem CID 168937 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:53:23.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.