Lithium Hydroxide

What is Lithium Hydroxide?

Molecular Formula (Lithium Hydroxide): LiOH

Molecular Weight: 24.00 g/mol

Chemical Name: Lithium Hydroxide

CAS Number: 1310-65-2

It has a very low molecular weight. It exists in monohydrate form outside of dry atmospheric conditions. It is a hygroscopic substance with the ability to absorb moisture from the air. Due to its property of easily attracting water from the air, it is generally found in nature in its monohydrate form. It is a chemical with strong basic properties.

It is a very soft chemical compound. Therefore, it is one of the rare chemical compounds that possess anti-wear properties.

Other Names are as follows;

• Lithium Hydrate
• LiOH
• 1310-65-2
• Lithium Hydroxide
• Lithium Hydroxide Anhydrous
• Monohydrate

How is Lithium Hydroxide Produced?

The majority of Lithium Hydroxide production is carried out through the lime sintering process. Concentrated spodumene and limestone (Calcium Hydroxide) are thoroughly mixed and then ground. Concentrated spodumene contains Lithium Oxide (Li2O) at a level of 6%.

In the second stage of the production process, the ground wet material is crushed for a certain period. Then, it is filtered as a slurry.

Lithium Aluminate and Calcium Silicate are obtained by the sintering reaction occurring at temperatures between 1150 °C and 1250 °C.

In the next step, a precipitation filtration process is performed. The crystallization stage is reached by evaporating the solution used for processing. And finally, LiOH is produced.

In another production method, it can be obtained by evaporating a solution consisting of Calcium Hydroxide and Lithium Carbonate.

What are the Physical and Chemical Properties?

It has basic properties. It is slightly denser than water. Its physical appearance is in a colorless crystalline form.

Its aqueous solution has a sharp odor. The solution is in liquid form with a clear appearance.

Melting point is 462 °C.

Boiling Point is 920 °C.

The density of lithium hydroxide is 1.51 g/cm³.

It is a stable compound under normal conditions.

Its solubility in water is 12.8 g/mL.

It is less soluble in chemicals such as Ethyl Alcohol, Methyl Alcohol, and Isopropyl Alcohol compared to its solubility in water.

What are the Usage Areas of Lithium Hydroxide?

• It is used as a coolant in the design of fusion reactors. It is used to provide tritium production to ensure sufficient fuel within the reactor. Its most important feature is its high solubility.
• In the cosmetics industry, it is used as a buffering agent in chemicals produced for hair straightening.
• Used in the manufacture of electronic and electrical products.
• Used as a chemical agent in esterification reactions.
• Electrolyte components within accumulators are very important. It is an electrolyte used especially in alkaline accumulators.
• Lubricants are used to prevent the wear of mechanical parts. These are known as lubricants or greases. Due to it being a soft compound, it has a high usage rate in these applications. Another important feature in grease manufacturing is its ability to withstand very high temperatures.
• It is a starter material (precursor) in the manufacture of many lithium-containing components.
• This lithium compound is found in many coloring agents.
• Acts as a catalyst in the manufacture of some resins.
• Soaps containing lithium are produced to manufacture soap that can withstand the destructive effects of water.
• It is used in the improved oil formula within the Base Oil found in grease production. At the same time, stearic acid, boric acid, and methyl salicylate are used as oil structure preservatives.
• Used as an additive in paints and as a flux in inorganic pigments. It enhances the brightness of specific pigments.
• Used in ceramics and some Portland cement formulations.
• Lithium hydroxide is used to alkalize the reactor coolant in pressurized water reactors for corrosion control. It provides good radiation shielding against free neutrons.
• Lithium compounds are used to increase conductivity in Zinc Galvanized coatings. This is because lithium metal has good conductivity and is a soft metal.
• It is used in ceramic production to give ceramics flexibility. This reduces the brittleness of ceramics and results in more durable ceramics.

What Factors Affect the Prices?

Lithium Hydroxide prices are directly dependent on the prices of the chemicals used in its production. The world's largest lithium producers manufacture this chemical from lithium carbonate. If the price of lithium carbonate increases, the prices will also rise.

Lithium hydroxide prices have increased over the last 10 years due to the increased use of lithium batteries. In the future, the price of this chemical will increase with the development of battery technology.

If companies that are distributors of Lithium Hydroxide increase their stocks, there will be a short-term decline in prices.