Lithium hydroxide monohydrate
Main content: 56.5%~57.5%
Lithium hydroxide is an important inorganic compound. The following is an introduction to it in terms of basic information, physical and chemical properties, uses, preparation methods, precautions, etc.
Basic Information
- Chemical Formula: LiOH
- English Name: Lithium hydroxide
- Molecular Weight: 23.95
Physical and Chemical Properties
- Physical Properties
- Appearance: White monoclinic fine crystals with a pungent taste.
- Solubility: Slightly soluble in ethanol, soluble in water, and its solubility in water decreases with the increase in temperature.
- Density: Approximately 1.46 g/cm³.
- Melting Point: 471°C.
- Boiling Point: 925°C (decomposition).
- Chemical Properties
- Alkalinity: It has strong alkalinity and can undergo neutralization reactions with acids to form corresponding lithium salts and water. For example, the reaction with hydrochloric acid: LiOH + HCl = LiCl + H2O.
- Stability: It is stable under normal temperature and pressure, but will decompose into lithium oxide and water at high temperatures.
- Reaction with Carbon Dioxide: It can absorb carbon dioxide in the air to form lithium carbonate. 2LiOH + CO2 = Li2CO3 + HO.
Uses
- Battery Field: It is an important raw material for the preparation of cathode materials for lithium-ion batteries, such as for the production of cathode materials such as lithium iron phosphate and ternary materials. These cathode materials are widely used in the batteries of various electronic devices such as electric vehicles, mobile phones, and laptop computers.
- Chemical Raw Material: It can be used as a raw material for the preparation of other lithium compounds, such as for the production of lithium carbonate, lithium chloride, etc. It can also be used as a basic reagent in organic synthesis reactions and participate in the synthesis of some organic compounds such as drugs and spices.
- Other Applications: In the metallurgical industry, it is used in the smelting of metals such as aluminum and magnesium to remove impurities; in the air purification systems of air conditioners, submarines and other enclosed spaces, it is used to absorb carbon dioxide and purify the air.
Preparation Methods
- Calcium Hydroxide Method: Mix spodumene concentrate with calcium hydroxide and react at high temperatures to form lithium hydroxide, calcium silicate and other products. Then, through processes such as water immersion, filtration, evaporation and concentration, and crystallization, the lithium hydroxide product is obtained.
- Lithium Carbonate Method: Using lithium carbonate as the raw material, react with calcium hydroxide solution under certain conditions to form lithium hydroxide and calcium carbonate precipitate. After filtration, separation, evaporation and concentration and other steps, lithium hydroxide is prepared.
Precautions
- Corrosiveness: It has strong corrosiveness and has a strong irritating effect on the skin, eyes, respiratory tract, etc. Protective gloves, goggles and other protective equipment should be worn during use to avoid direct contact.
- Storage Conditions: It should be stored in a sealed manner to avoid contact with substances such as carbon dioxide and water in the air to prevent deterioration.
Product Specification:
| Product Name: |
Lithium hydroxide monohydrate |
| Appearance: |
White crystal powder |
| CAS NO.: |
1310-66-3 |
| EINECS NO.: |
603-454-3 |
| Chemical Formula: |
LiOH.H2O |
| Molecular Weight: |
41.96 |
| Density: |
1.51 |
| Melting Point: |
462 °C |
| Boilting Point: |
920 °C |
| Solubilty: |
109g/L (20ºC in water) |
| PH value: |
~12 (25ºC, 1M in H2O) |
| Storage Conditions: |
Store at room temperature |
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