Langyou Chemical
SUPPLEMENTS
Stearin vs Stearic Acid
"On stearyl essence and stearic acid"
The nature of human substances, there are special ones, stearyl essence and stearic acid, the two are related, but the nature is different.
The stearyl essence is a genus of esters, which are esters formed by fatty acids and alcohols. In its structure, the fatty acid part often contains long-chain hydrocarbon groups, and the alcohol may be glycerol or the like. Stearyl essence has specific physical properties. It is often an important component in the oil system. The consistency and melting point of the oil depend on the proportion of stearyl essence. For example, in some natural oils, the content of stearin affects the shape of the oil at different temperatures, either as a liquid flow or as a semi-solid paste.
As for stearic acid, it is a fatty acid. Its molecular structure is a straight-chain saturated fatty acid containing carboxyl groups, and the carbon chain length is usually 18 carbon atoms. Stearic acid is also white solid, but its melting point, solubility and other properties are different from stearin. Stearic acid is more soluble in organic solvents, such as ethanol, ether, etc., and is widely used in industry and daily life. In the cosmetics industry, stearic acid is often used as an emulsifier and thickener, which can make the texture of cosmetics more uniform and stable; in the rubber industry, it helps to improve the processing properties of rubber, enhance its flexibility and anti-aging ability.
Compared with the two, stearic acid is an ester, its chemical properties are relatively stable, and its hydrolysis is relatively slow. It requires specific conditions, such as strong acid or strong base and suitable temperature, to gradually hydrolyze into fatty acids and alcohols. Stearic acid, because it contains carboxyl groups, is acidic, and can neutralize with bases to generate corresponding salts. The difference in chemical properties determines the application of the two in different fields. In the food industry, stearin can be used as a lubricant and mold release agent. Due to its high stability, it is not easy to react adversely with food ingredients; while stearic acid is acidic, it can adjust the acidity in some food additive formulations, or as an auxiliary component of preservatives.
View stearin and stearic acid, although both involve the category of oil chemistry, each has its own characteristics and uses. Observing their characteristics and understanding their differences is of great significance to the development of chemical, food, daily chemical and many other industries.
The nature of human substances, there are special ones, stearyl essence and stearic acid, the two are related, but the nature is different.
The stearyl essence is a genus of esters, which are esters formed by fatty acids and alcohols. In its structure, the fatty acid part often contains long-chain hydrocarbon groups, and the alcohol may be glycerol or the like. Stearyl essence has specific physical properties. It is often an important component in the oil system. The consistency and melting point of the oil depend on the proportion of stearyl essence. For example, in some natural oils, the content of stearin affects the shape of the oil at different temperatures, either as a liquid flow or as a semi-solid paste.
As for stearic acid, it is a fatty acid. Its molecular structure is a straight-chain saturated fatty acid containing carboxyl groups, and the carbon chain length is usually 18 carbon atoms. Stearic acid is also white solid, but its melting point, solubility and other properties are different from stearin. Stearic acid is more soluble in organic solvents, such as ethanol, ether, etc., and is widely used in industry and daily life. In the cosmetics industry, stearic acid is often used as an emulsifier and thickener, which can make the texture of cosmetics more uniform and stable; in the rubber industry, it helps to improve the processing properties of rubber, enhance its flexibility and anti-aging ability.
Compared with the two, stearic acid is an ester, its chemical properties are relatively stable, and its hydrolysis is relatively slow. It requires specific conditions, such as strong acid or strong base and suitable temperature, to gradually hydrolyze into fatty acids and alcohols. Stearic acid, because it contains carboxyl groups, is acidic, and can neutralize with bases to generate corresponding salts. The difference in chemical properties determines the application of the two in different fields. In the food industry, stearin can be used as a lubricant and mold release agent. Due to its high stability, it is not easy to react adversely with food ingredients; while stearic acid is acidic, it can adjust the acidity in some food additive formulations, or as an auxiliary component of preservatives.
View stearin and stearic acid, although both involve the category of oil chemistry, each has its own characteristics and uses. Observing their characteristics and understanding their differences is of great significance to the development of chemical, food, daily chemical and many other industries.
Scan to WhatsApp
