Lithium Sulfate Monohydrate CAS 10102-25-7 for Chemical Use

Basic Information

• Chemical Formula: (Li2SO4.H2O)
• English Name: Lithium sulfate monohydrate
• Molecular Weight: Approximately 127.96 (calculated using common approximate relative atomic masses)

Physical and Chemical Properties

• Appearance: Usually white crystalline powder or colorless transparent crystals.
• Solubility: It is highly soluble in water, and its aqueous solution is neutral. Its solubility in water varies at different temperatures. Generally, as the temperature rises, the solubility increases.
• Melting Point: Approximately 860°C (the melting point of anhydrous lithium sulfate. Lithium sulfate monohydrate loses its crystal water first during heating and then undergoes melting and other changes).
• Density: Approximately 2.221 g/cm³.

Production Methods

• Sulfuric Acid Method: It can be prepared by reacting lithium hydroxide or lithium carbonate with sulfuric acid. After the reaction, operations such as evaporation and crystallization are carried out to obtain lithium sulfate monohydrate.
• Spodumene Method: Using spodumene as the raw material, lithium sulfate monohydrate can also be produced through a series of processes including sulfuric acid roasting. First, spodumene is roasted with sulfuric acid at high temperatures to convert the lithium in it into lithium sulfate. Then, through steps such as leaching and impurity removal, lithium sulfate monohydrate products are finally obtained by crystallization.

Application Fields

• Battery Industry: It is one of the important raw materials for preparing lithium - ion battery electrolytes. In lithium - ion batteries, it can participate in constructing the electrolyte system, helping to improve the electrical conductivity and stability of the battery, thereby enhancing the battery's performance and service life.
• Medical Field: Lithium sulfate monohydrate has certain applications in the medical field. For example, it can be used as a raw material for lithium - salt drugs, which are used to treat certain mental illnesses such as mania. Lithium salts can regulate the functions of nerve cells, stabilize emotions, and have a certain therapeutic effect on some patients with mental disorders.
• Other Fields: In industries such as ceramics and glass, lithium sulfate monohydrate can be used as an additive. In ceramic production, it can lower the melting point of ceramics, improve the molding properties and mechanical properties of ceramics. In glass manufacturing, adding lithium sulfate monohydrate can adjust the chemical composition of the glass, improving the transparency, hardness, and thermal shock resistance of the glass.

Precautions

• Lithium sulfate monohydrate is irritating to a certain extent. During use and storage, direct contact with the skin and eyes should be avoided. In case of accidental contact, rinse immediately with plenty of water and seek medical attention promptly.
• During storage, pay attention to moisture prevention. It should be placed in a dry and well - ventilated place, and avoid mixing with strong oxidants, acids, and other substances to prevent chemical reactions.