In general, lithium stearate is the lithium salt of stearic acid and is derived from lithium hydroxide along with cooked lard (beef, sheep, pork, etc.) or other animal fats. So it can be said that lithium stearate is a metal salt of a fatty acid; Metallic salts of fatty acids are known as soap and are used in various industries. This chemical compound is also known as lithium octadecanoate, octadecanoic acid and lithium salt. It is in the form of dry powder or liquid and is stable at normal temperature and pressure.
In case of exposure to strong acids, it decomposes into stearic acid and lithium salt. It has anti-rust and anti-corrosion properties and is highly resistant to water. Also, this substance has a higher melting point than sodium and potassium soaps, so it will be more resistant to loss of consistency. Lithium stearate is used in food, pharmaceutical and pesticide products.
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| Product Information | Manufacturer: China
CAS NO: 4485-12-5 |
| Product analysis |
What is lithium stearate?
Lithium stearate is a lithium salt of stearic acid with the chemical formula C 18 H 35 LiO 2, molecular weight 290.4 grams and melting point 220ºC. It has anti-rust and anti-corrosion properties and has high water resistance. as a catalyst in chemical synthesis and emulsifier and lubricating grease in wet and mechanical parts that are in contact with water. It is used
Physical and chemical properties of lithium stearate:
| Ayupak’s name | Lithium octadecanoate |
| molecular formula | C18H35LiO2 _ _ _ _ _ |
| Molecular Weight | 290.4 grams |
| melting point | 220°C |
| density | 1.025 g/cm 3 |
| Appearance characteristics | White powder with a mild smell |
| Solubility | Slightly soluble in water and ethanol , insoluble in ethyl acetate and mineral oil |
Preparation method of lithium stearate:
This chemical compound is prepared from the reaction of lithium hydroxide and stearic acid. Stearic acid is actually a fatty acid and is obtained from the hydrolysis of animal and vegetable oils and fats.
Application of lithium stearate:
The application of this compound as a lubricating grease with high resistance to water is very interesting. Due to the application of lithium stearate at various temperatures, this compound is used in the automotive, heavy machinery, and air and space industries. It is also used as a stabilizer in cosmetics and plastic industry. Lithium stearate has properties that can be used as a corrosion inhibitor in oil. This substance is used as a catalyst in chemical synthesis and an emulsifier for the polymerization of synthetic rubber and resin. The most common uses of this material include the following:
- Thickener of synthetic and natural oils
- Making good lightweight metal molds
- Lubricating grease
- sealant
Although this material has high resistance in water, it performs better in other environments; Also, this composition has excellent anti-rust and anti-corrosion properties.
Lubricating grease:
A common use of lithium stearate is as a lubricating grease. Lithium is in the group of alkali metals and this group is insoluble in water; For this reason, lithium stearate has a very good resistance to water.
These reasons are enough to use this material for wet and mechanical parts that are in contact with water, in addition, it can be added that this compound has excellent mechanical stability.
Cosmetic:
Lithium stearate is used as a stabilizer in the cosmetics industry. Research shows that this compound is a mild stimulant only in high concentrations; So it can be concluded that it was not toxic and does not cause skin sensitivity.
This material is often used in eye shadows, blushes and other cosmetics.
safety tips:
Lithium stearate should be stored in a closed container in a well-ventilated place. It is better to use protective gloves, clothing and glasses when working with it. It is not a toxic substance, but its contact with the skin and eyes is dangerous. In case of skin contact, wash the area with soap and water and change contaminated clothes and shoes. The contact of this substance with the eyes is also dangerous. In case of contact, wash the affected eye with plenty of water for 15 minutes. Use dry chemicals, carbon dioxide and water spray to extinguish the resulting fire.
Conclusion:
Lithium stearate is a chemical substance with the formula C 18 H 35 LiO 2, a lithium salt. It is obtained from the reaction of stearic acid with lithium hydroxide. It is in the form of a white powder with a mild smell and has anti-rust and anti-corrosion properties. Due to its high resistance in water, it is used in many industries.