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Lithium hydroxide monohydrate

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  • Lithium hydroxide
  • US $100.00 / KG
  • 2021-09-07
  • CAS:1310-66-3
  • Min. Order: 1KG
  • Purity: >99%
  • Supply Ability: 5000KG
Lithium hydroxide monohydrate Basic information
Chemical Properties Alkali Development history Uses Chemical Reaction Preparation Production method
Product Name:Lithium hydroxide monohydrate
Synonyms:Lithium hydroxide hydrate;LITHIUM HYDROXIDE-1-HYDRATE;Monohydrate Lithium Hydroxide;Lithium hydroxide monohydrate 99.95% trace metals basis;Lithium hydroxide monohydrate 99.995% trace metals basis;Lithium hydroxide monohydrate ACS reagent, >=98.0%;Lithium hydroxide monohydrate puriss. p.a., >=99.0% (T);Lithium hydroxide monohydrate purum, >=98.5%
Product Categories:ACS GradeChemical Synthesis;Essential Chemicals;Lithium Salts;Metal and Ceramic Science;Inorganic Bases;Routine Reagents;Salts;Analytical Reagents for General Use;I-N, Puriss p.a.;Puriss p.a.;Synthetic Reagents;Chemical Synthesis;metal hydroxide
Mol File:1310-66-3.mol
Lithium hydroxide monohydrate Structure
Lithium hydroxide monohydrate Chemical Properties
Melting point 462 °C
Boiling point 920 °C
density 1.51
storage temp. Store at room temperature.
solubility H2O: 1 M at 20 °C, clear, colorless
form Solid
color White to cream or yellow
Specific Gravity1.51
PH Range14
PH~12 (25℃, 1M in H2O)
Water Solubility 109 g/L (20 ºC)
Sensitive Air Sensitive & Hygroscopic
λmaxλ: 260 nm Amax: 0.02
λ: 280 nm Amax: 0.02
Merck 14,5534
Stability:Stable. Incompatible with moisture. strong acids, carbon dioxide. Absorbs carbon dioxide from the air.
CAS DataBase Reference1310-66-3(CAS DataBase Reference)
NIST Chemistry ReferenceLiOH(1310-66-3)
EPA Substance Registry SystemLithium hydroxide (Li(OH)), monohydrate (1310-66-3)
Safety Information
Hazard Codes C
Risk Statements 22-35-20/22-34-52
Safety Statements 26-36/37/39-45-22-27
RIDADR UN 2680 8/PG 2
WGK Germany 2
RTECS OJ6307080
HazardClass 8
PackingGroup II
HS Code 28252000
MSDS Information
Lithium hydroxide English
SigmaAldrich English
ACROS English
ALFA English
Lithium hydroxide monohydrate Usage And Synthesis
Chemical PropertiesBoth lithium hydroxide and lithium hydroxide monohydrate are colorless crystalline solids at ordinary temperatures. Both are strong bases and should be handled with caution in order to avoid caustic burns. Evaporation of a solution of lithium hydroxide under normal conditions of temperature and pressure results in precipitation of the monohydrate which may be readily dehydrated by heating in a vacuum or under cover of an inert gas.
Lithium hydroxide absorbs water from the air and forms lithium hydroxide monohydrate except under dry atmospheric conditions. Two equilibrium vapor pressures for the conversion of lithium hydroxide monohydrate to anhydrous lithium hydroxide are 4 torr at 25°C and 12 torr at 40°C.
Lithium hydroxide
Both anhydrous and lithium hydroxide monohydrate absorb carbon dioxide from the air to form lithium carbonate.
The solubility of lithium hydroxide in water is lower than that of the other alkali metal hydroxides. However, lithium hydroxide is a strong base and reacts completely with both weak and strong acids in aqueous solutions.
AlkaliLithium hydroxide is a strong base, its chemical properties are more similar to that of the hydroxide at group 2 in periodic table of elements, but quite different with the LDHs in the Group 1.The chemical formula is LiOH, molecular weight is 23.95, melting point of 450 ℃, decomposition temperature of 924 ℃ and relative density is 1.46.Its a white tetragonal crystal and has strong causticity and excitability to the skin.It is slightly soluble in ethanol, soluble in water, but the solubility is less than that of the other alkali metal hydroxides.
The monohydrate can be obtained when the lithium hydroxide react with the water vapor in the air or form the crystals in the aqueous solution. It can react with the acidic gas like sulfur dioxide, hydrogen chloride and hydrogen cyanide etc. It can also react with the strong or weak acids in aqueous solution. Absorbing the carbon dioxide in the air can generate lithium carbonate.
Lithium hydroxide is used as grease additives (thickeners, antioxidants, extreme pressure agents) to improve heat resistance, water resistance, stability and mechanical properties. The grease additives can be used in the bearings of car, plane and crane etc; the raw material of the lithium battery electrolyte.
The calcined solid lithium hydroxide can be used as the carbon dioxide absorbent for the crew members at the spacecraft and submarine.In early American, the areospaceplane of mercury, gemini and apollo project are all using the lithium hydroxide as the absorbers. Its has a reliable performance and can can easily absorb carbon dioxide from the gas contained water vapor. The chemical reaction is: 2LiOH + CO2 → Li2CO3 + H2O, the anhydrous lithium hydroxide of only 1g can absorb carbon dioxide with volume of 450ml. Only 750g of the anhydrous lithium hydroxide can imbibe the carbon dioxide exhaled by one person each day.
Further, lithium hydroxide is also widely used as the raw material to prepare the other subject like lithium compound, lithium salt, lithium soaps, lithium grease, alkyd resins, developer of spectral analysis, the additives of alkaline storage battery, photographic developers and the catalyst etc. It can increase the capacity of the battery by 12%~15% and improve the battery’s life for 2~3 times when it used as the additive for alkaline storage battery Alkaline storage battery as the electrolyte additive.
The information aboved is edited by ChemicalBook Wang Xiaonan.
Development historyThe lithium hydroxide was used as the carbon dioxide absorbents in the submarine and the inflatable source of army ballon at 1944.
At 1950, 6Li,the isotope of Li, is used as a raw material for producting the thermonuclear weapons like hydrogen bomb. From that time the United States atomic energy industry began to use a large quantity of lithium hydroxide which lead to amazing development of the lithium industry.
Lithium and its compounds are widely used in the military industry and civilian industry due to its unique chemical and physical properties. Aluminum industry is the largest client of lithium. Adding lithium carbonate to the aluminium electrolysis can reduce the electrolyte’s melting point and increase the current efficiency of aluminum electrolyser resulting in the improment of the aluminum production by about 10% and the power consumption reduced by 8 to 14%; in addition, it can also inhibit the discharge of the harmful fluorine by 22% to 38%. In the United States and Europe, the amount of lithium carbonate consumed by the aluminum industry can take 40% of the total amount of lithium.
  • A principal use of lithium hydroxide monohydrate is as a starting material for numerous other lithium chemicals such as lithium fluoride, lithium chloride, lithium bromide and lithium iodide. Since these materials are prepared in aqueous solutions, there is no particular advantage in using the anhydrous hydroxide for the preparation. Other salts of weak and strong acids may be prepared using lithium hydroxide as a starting material. The preparation of anhydrous lithium hydroxide has already been described.
  • A major use of lithium hydroxide monohydrate is in the preparation of lithium salts of fatty acids (lithium soaps) which, with mineral oil and other additives, are used to make lithium-based greases3 6 . Such greases are superior to those based on other metal ions. Lithium greases are good lubricants at high temperatures and are particularly good at low temperatures. They also resist the deteriorating effect of water satisfactorily due to the low water solubility of lithium soaps.
  • Both lithium hydroxide and lithium hydroxide monohydrate absorb carbon dioxide readily. Anhydrous lithium hydroxide is used effectively as a carbon dioxide absorbent in life support systems in underwater and aerospace applications.
Chemical Reaction1. sodium hydroxide generates lithium oxide and water at the condition of 600 ℃ and in the absence of air, the chemical reaction equation:
2LiOH = Li2O + H2O
2. Under the heating conditions, the sodium hydroxide react with the magnesium or calcium can generate lithium and the corresponding lithium oxide.
(1) 2LiOH + Mg = 2Li + MgO + H2O
(2) 2LiOH + Ca = 2Li + CaO + H2O
3. Sodium hydroxide react with the chlorine or iodine can generate lithium halide and lithium chloride and secondary lithium halides.
(1) 2LiOH + Cl2 = LiCl + LiOCl + H2O
(2) 2LiOH + I2 = LiI + LiOI + H2O
4. Lithium hydroxide react with zinc can generate the of zinc acid lithium and hydrogen, the chemical reaction equation:
2LiOH + Zn = LiZnO2 + H2
5. Lithium hydroxide react with acid form the neutralization reaction, and generate the corresponding acid lithium salt (or hydrated lithium salt) and water.
(1) 8H2O LiOH+HBO2+7H2O=LiBO2
(2) 2LiOH+H3PO4 = Li2HPO4+2H2O
(3) 2LiOH+H2SO4 = Li2SO4+2H2O
(4) LiOH (excess) +HClO4 = LiClO4+H2O
6. lithium hydroxide react with a mixture of ammonium chloride, and Li2[HgI4]( Dilithium mercury tetraiodide), or calcium chloride, barium chloride role can generate lithium chloride and other subject.
(1) 4LiOH + 2Li2HgI4 + NH4Cl = LiCl + 7LiI + Ohg2NH2I + 3H2O
(2) 2LiOH + CaCl2 = 2LiCl + Ca(OH)2
(3) 2LiOH + BaCl2 = 2LiCl + Ba(OH)2
PreparationLithium hydroxide monohydrate may also be made by the evaporation of a solution prepared by the reaction of calcium hydroxide and lithium carbonate.Anhydrous lithium hydroxide may be prepared by heating the monohydrate in air or in a vacuum.
One laboratory preparation of lithium hydroxide or its monohydrate may be carried out by reacting a solution of barium hydroxide with a solution of lithium sulfate, evaporating the resulting solution of lithium hydroxide, and crystallizing lithium hydroxide monohydrate Lithium hydroxide is readily prepared by drying lithium hydroxide monohydrate.
A simple, convenient laboratory technique for preparation of anhydrous lithium hydroxide from the monohydrate involves vacuum drying in a heated desiccator. To avoid forming a sintered anhydrous material, heat should be applied slowly while maintaining a high vacuum. Contact with air is also avoided by such a procedure, and carbonate formation is minimized.
Production methodLime sinter process: spodumene concentrate (containing 6% of lithium oxide) mixed with limestone and mill the mixture finely. The lithium aluminate and calcium silicate can be obtained after sintering at 1150~1250 ℃.Crushing the product by the wet grinding, and leaching the lithium hydroxide with lotion. After the settling filtration and the evaporation, concentration, crystallization of the leaching solution. The final product-lithium hydroxide can be get
Chemical Propertieswhite monoclinic crystal. Relative density of 1.51. Dissolved in water, Slightly soluble in acids, alcohols, insoluble in ether.
UsesUsed in catalyst for alkyd resins.
PreparationLithium hydroxide monohydrate may also be made by the evaporation of a solution prepared by the reaction of calcium hydroxide and lithium carbonate.Anhydrous lithium hydroxide may be prepared by heating the monohydrate in air or in a vacuum.
General DescriptionSmall 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.
An aqueous solution of a lithium salt below its boiling point has been considered for both a tritium breeding blanket and as a coolant in several fusion reactor designs. In order to breed sufficient tritium to fuel the reactor, a high concentration of lithium is desirable and lithium hydroxide is sufficiently soluble for this purpose. The solution would be contained in pipes and heat exchangers, most probably made from carbon steel.
Air & Water ReactionsSoluble in water; heat of dissolution may generate steam and cause spattering.
Reactivity ProfileLITHIUM 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].
Health HazardTOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire HazardNon-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Purification MethodsIt crystallises from hot water (3mL/g) as the monohydrate. It is dehydrated at 150o in a stream of CO2-free air. It sublimes at 220o with partial decomposition [Cohen Inorg Synth V 3 1957, Bravo Inorg Synth VII 1 1963].
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