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CAS No.: | 1310-65-2 |
---|---|
Name: | Lithium hydroxide |
Article Data: | 139 |
Molecular Structure: | |
Formula: | LiOH |
Molecular Weight: | 23.9483 |
Synonyms: | Lithium hydroxide anhydrous;Lithium hydrate;UNII-903YL31JAS;UN2679;UN2680;Lithine;Lithiumhydroxid; |
EINECS: | 215-183-4 |
Density: | 1.43 g/cm3 |
Melting Point: | 462 °C |
Boiling Point: | 924 °C decomp. |
Solubility: | in water: 12.8 g/100 mL (20 °C), 12.5 g/100 mL (25 °C), 17.5 g/100 mL (100 °C) |
Appearance: | white crystals or pellets |
Hazard Symbols: | C |
Risk Codes: | 52/53-35-20/22-22 |
Safety: | 45-36/37/39-26-22 |
Transport Information: | UN 2680 |
PSA: | 23.06000 |
LogP: | -0.17680 |
[CeCl3(H2O)]
methyllithium
A
methane
B
cerium chloride
C
lithium hydroxide
Conditions | Yield |
---|---|
In tetrahydrofuran (vac.); | A 40% B n/a C n/a |
Conditions | Yield |
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In gaseous matrix Kinetics; byproducts: H; react. of Li atoms and water vapour (excess), N2 bath gas, T = 850, 900, 925, 950, 973, 1000K; monitoring by time-resolved laser induced fluorescence (670.7 nm); | |
In neat (no solvent) on moist air, fast reaction;; | |
In tetrahydrofuran reactn. of excess of lithium with H2*O; (17)O/(18)O-enrichment: about 10% (17)O, about 40% (18)O; |
Conditions | Yield |
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In water formation of a lot of Li2O and a few LiOH;; determination with electron diffraction;; |
Conditions | Yield |
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In water dissolving Li in mixt. of H2O and (2)H2O under Ar atmosphere; H/(2)H ratio in electrolyte 0.22+/-0.01; |
Conditions | Yield |
---|---|
byproducts: NH3; |
Conditions | Yield |
---|---|
In tetrahydrofuran; hexane (N2); using Schlenk techniques; addn. of soln. of n-BuLi in hexane to cooled soln. of water in THF; |
Conditions | Yield |
---|---|
In not given byproducts: HD; formation from LiD and water besides HD;; |
Conditions | Yield |
---|---|
In neat (no solvent) Kinetics; analysis of the equilibrium of the reaction, determination of partial pressure of CO2 depending on temp.;; | |
In neat (no solvent) Kinetics; analysis of the equilibrium of the reaction, determination of partial pressure of CO2 depending on temp.;; |
Conditions | Yield |
---|---|
Li2O is heated at 673 K in Ar saturated atmosphere with water vapour (parial pressure 1.5 kPa).; | |
In water vaporization of aq. Li2O soln., strong heating of residue;; | |
In neat (no solvent) formation with Li2O and the moisture of the air;; | |
In water vaporization of aq. Li2O soln., strong heating of residue;; | |
In neat (no solvent) formation with Li2O and the moisture of the air;; |
Conditions | Yield |
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With barium sulfate In water pptn. from Li2SO4 soln. with baryte, filtration, vaporization;; melting in platinum crucible;; | |
With barium sulfate In water pptn. from Li2SO4 soln. with baryte, boiling very diluted soln. in platinum or silver crucible, melting at 445°C;; pouring on silver plate, crushing; LiOH contains water;; | |
With baryte In water pptn. from Li2SO4 soln. with baryte, boiling very diluted soln. in platinum or silver crucible, melting at 445°C;; pouring on silver plate, crushing; LiOH contains water;; | |
With baryte In water pptn. from Li2SO4 soln. with baryte, filtration, vaporization;; melting in platinum crucible;; |
Reported in EPA TSCA Inventory.
DOT Classification: 8; Label: Corrosive
For occupational chemical analysis use NIOSH: Alkaline Dusts, 7401.
Lithium hydroxide, also called Lithine, has the CAS register number 1310-65-2. The substance is an inorganic compound with the formula LiOH which is a hygroscopic and white odorless solid. In addition, Its EINECS register number is 215-183-4. Lithium hydroxide is stable, and incompatible with moisture, strong acids, carbon dioxide. It is easily that Lithium hydroxide absorbs carbon dioxide and moisture in the air, however, weak to NaOH. If diluted by water, it may generate enough heat to cause steaming or spattering.
Properties: Lithium hydroxide may generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. Lithium hydroxide reacts with acids in a neutral reaction to form salts plus water. In addition, it reacts with certain metals, such as aluminum and zinc, to form oxides or hydroxides of the metal and generate gaseous hydrogen. Lithium hydroxide may initiate polymerization reactions in polymerizable organic compounds, especially epoxides. This chemical can react with aqueous solutions of reducing sugars when heated above about 84°C to evolve toxic levels of carbon monoxide.
Preparation: Lithium hydroxide can be produced by lithium carbonate and calcium hydroxide in a metathesis reaction.
Li2CO3 + Ca(OH)2 → 2 LiOH + CaCO3
Lithium hydroxide is prepared by the hydrolysis of lithium or lithium oxide in the laboratory. The equations for these processes are as the following:
2 Li + 2 H2O → 2 LiOH + H2
Li2O + H2O → 2 LiOH
Uses: Lithium hydroxide is used to alkalize the reactor coolant in pressurized water reactors for corrosion control. This chemical can also be used to manufacture lithium salts and lithium base grease. In addition, It can be used as electrolyte of alkaline batteries and absorption liquid of lithium bromide chiller. Lithium hydroxide is mainly used for the production of lithium greases. It is also used in ceramics and some Portland cement formulations. Lithium hydroxide is used as a heat transfer medium, as a storage-battery electrolyte. Lithium hydroxide can also be used in breathing gas purification systems for spacecraft, submarines, and rebreathers to remove carbon dioxide from exhaled gas by producing lithium carbonate and water:
2 LiOH·H2O + CO2 → Li2CO3 + 3 H2O
2LiOH + CO2 → Li2CO3 + H2O
When you are using Lithium hydroxide, you should be very cautious about it. It is corrosive. In addition, it is harmful by inhalation and if swallowed which may cause severe burns. Lithium hydroxide is harmful to aquatic organisms which may cause long-term adverse effects in the aquatic environment. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact or use it, you must wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible).
Descriptors computed from structure of Lithium hydroxide:
(1)Canonical SMILES: [Li+].[OH-]
(2)InChI: InChI=1S/Li.H2O/h;1H2/q+1;/p-1
(3)InChIKey: WMFOQBRAJBCJND-UHFFFAOYSA-M
Toxicity of Lithium hydroxide:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LD50 | oral | 363mg/kg (363mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | "Spravochnik po Toksikologii i Gigienicheskim Normativam Vol. -, Pg. 152, 1999. |
mouse | LDLo | subcutaneous | 300mg/kg (300mg/kg) | Pharmacology and Toxicology. English translation of FATOAO. Vol. 21, Pg. 419, 1958. | |
rat | LC50 | inhalation | 960mg/m3/4H (960mg/m3) | LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES | Fundamental and Applied Toxicology. Vol. 7, Pg. 58, 1986. |
rat | LD50 | intratracheal | 8200ug/kg (8.2mg/kg) | LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES BLOOD: HEMORRHAGE | "Spravochnik po Toksikologii i Gigienicheskim Normativam Vol. -, Pg. 152, 1999. |
rat | LD50 | oral | 210mg/kg (210mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD | "Spravochnik po Toksikologii i Gigienicheskim Normativam Vol. -, Pg. 152, 1999. |