LITHIUM HYDROXIDE
Lithium hydroxide
LITHIUM HYDROXIDE is listed in Annex III and may only be used under the conditions shown in this record. Maximum concentration in this record: (a) 1. 2% (6) 2. 4.5% (6).
Chemical identity and properties
Lithium Hydroxide
Lithium hydroxide is an alkali metal hydroxide. — ChEBI
- IUPAC name
- lithium hydroxide
- Molecular formula
- HLiO
- Molecular weight
- 24.0 g/mol
- Exact mass
- 24.01874309 Da
- Topological polar surface area
- 1.0 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 1
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEBI:CHEBI:33979
- EPA DTXSID:DTXSID70893845
- EPA DTXSID:DTXSID901337186
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Boiling Point: 1626 °C @760 [mm Hg] Source: PAC Chemical Database, U.S. Department of Energy
- Density: 2.54 g/cm³ Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Density: 1.45 @25 °C Source: PAC Chemical Database, U.S. Department of Energy
- Melting Point: 450-471 °C Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Melting Point: 473 °C Source: PAC Chemical Database, U.S. Department of Energy
- Physical 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. Source: CAMEO Chemicals
- Physical Description: Large Crystals; Liquid; Wet Solid; Dry Powder; Liquid Source: EPA Chemical Data Reporting (CDR)
- Physical Description: White crystals or granular powder; [AIHA] Readily absorbs carbon dioxide and water from air; [Merck Index] White odorless granules; Hygroscopic; [Alfa Aesar MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Physical Description: COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Solubility: Solubility in water, g/100ml at 20 °C: 12.8 (good) Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Vapor Pressure: Vapor pressure, Pa at 20 °C: (negligible) Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- Exposure Routes: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Serious local effects by all routes of exposure. Source: ILO-WHO International Chemical Safety Cards (ICSCs)
- First Aid: 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) Source: CAMEO Chemicals
- ERG2024, Guide 154 (Lithium hydroxide, solution; Lithium hydroxide): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
- ERG2024, Guide 154 (Lithium hydroxide; Lithium hydroxide, solution): General First Aid:; · Call 911 or emergency medical service.; · Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.; · Move victim to fresh air if it can be done safely.; · Administer oxygen if breathing is difficult.; · If victim is not breathing:; -- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.; -- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).; -- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.; · Remove and isolate contaminated clothing and shoes.; · For minor skin contact, avoid spreading material on unaffected skin.; · In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.; · For severe burns, immediate medical attention is required.; · Effects of exposure (inhalation, ingestion, Source: Emergency Response Guidebook (ERG)
- Note: This chemical does not meet GHS hazard criteria for 9.7% (95 of 980) of reports. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H301 (12.6%): Toxic if swallowed [Danger Acute toxicity, oral]; H302 (73.6%): Harmful if swallowed [Warning Acute toxicity, oral]; H311 (10.9%): Toxic in contact with skin [Danger Acute toxicity, dermal]; H314 (89.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H318 (72.4%): Causes serious eye damage [Danger Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: 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) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: 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.; Reported as not meeting GHS hazard criteria per 95 of 980 reports by companies.; There are 26 notifications provided by 885 of 980 reports by companies with hazard statement code(s).; 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. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: NITE-CMC
- GHS Hazard Statements: H301: Toxic if swallowed [Danger 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]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; 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] Source: NITE-CMC
- Precautionary Statement Codes: P203, P260, P261, P263, P264, P264+P265, P270, P271, P280, P301+P316, 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) Source: NITE-CMC
- GHS Hazard Statements: H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]; H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]; H331: Toxic if inhaled [Danger Acute toxicity, inhalation]; H360: May damage fertility or the unborn child [Danger Reproductive toxicity]; H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure] Source: NITE-CMC
- Precautionary Statement Codes: 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, P321, P363, P403+P233, P405, and P501 (click each P-code to see the statement) Source: NITE-CMC
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- GHS Hazard Statements: H302: Harmful if swallowed [Warning Acute toxicity, oral]; H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation] Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Consumer Uses: Lubricating agent; Viscosity modifiers; Ion exchange agent Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Absorbent; Ion exchange agent; Viscosity modifiers; Intermediate; Dye; Lubricating agent; Processing aids not otherwise specified Source: EPA Chemical Data Reporting (CDR)
- Sources/Uses: Used in photographic developing solutions, alkaline storage batteries, lithium-based greases, polymerization catalysts, carbon dioxide absorbents, alkyd paints, textile dye solubilizers, and copper electroplating baths; Produced along with lithium oxide when lithium-aluminum alloys are heated by welding or cutting; [AIHA] Used in cosmetics; [ExPub: EC] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Industrial Processes with risk of exposure: Welding [Category: Weld]; Electroplating [Category: Plate]; Battery Manufacturing [Category: Industry]; Painting (Pigments, Binders, and Biocides) [Category: Paint]; Gas Welding and Cutting [Category: Weld]; Photographic Processing [Category: Other]; Textiles (Printing, Dyeing, or Finishing) [Category: Industry] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Record details
Maximum concentration
(a) 1. 2% (6) 2. 4.5% (6)
Product type
Other restrictions
(a)
1. General use
2. Professional use
(b) pH < 12.7
(c) pH < 11
Warnings
(a)
1. Contains alkali
Avoid contact with eyes
Can cause blindness
Keep out of reach of children
2. Avoid contact with eyes
Can cause blindness
(b) Contains alkali
Keep out of reach of children
Avoid contact with eyes
INCI glossary name
LITHIUM HYDROXIDE
Chemical name
Lithium hydroxide
Regulatory information
SCCS opinions
Identified ingredients
Key data
Inventory links for LITHIUM HYDROXIDE
Related records for LITHIUM HYDROXIDE
Direct matches are limited for this record, so nearby entries from Annex III are shown as well.
POTASSIUM HYDROXIDE / SODIUM HYDROXIDE
What Annex III means for LITHIUM HYDROXIDE
LITHIUM HYDROXIDE is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.
When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.
This record is linked to 1 CosIng inventory ingredient for name and identifier cross-reference. The page also surfaces 10 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Ensure formulation concentration does not exceed: (a) 1. 2% (6) 2. 4.5% (6)
- Confirm product type compatibility: (a) Hair straightener (b) pH ajuster for depilatories (c) Other uses as pH ajuster (for rinse-off products only)
- Include required warning statement on product label.
- Document conditions of use in the Product Information File (PIF).
Frequently asked questions
Source note for Annex III record LITHIUM HYDROXIDE
This page summarizes one Annex III record for LITHIUM HYDROXIDE from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex III conditions for LITHIUM HYDROXIDE, but confirm any final regulatory decision against the current official annex wording and source files.
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