硬脂酸是自然界廣泛存在的一種脂肪酸，幾乎所有油脂中都有含量不等的硬脂酸，在動物脂肪中的含量較高。那你知道硬脂酸、軟脂酸和油酸的區別是怎樣的嗎？下面氫氧化鉀廠家為您解說。

Stearic acid is a kind of fatty acid widely existing in nature. Almost all oils contain stearic acid with different contents, and the content in animal fat is relatively high. Do you know the difference between stearic acid, palmitic acid and oleic acid? The potassium hydroxide manufacturer will explain it to you.

1、分子式不同

1. Different molecular formulas

硬脂酸：硬脂酸的分子式為CHO。

Stearic acid: The molecular formula of stearic acid is CHO.

軟脂酸：軟脂酸的分子式為CHO。

Palmitic acid: The molecular formula of palmitic acid is CHO.

油酸：油酸的分子式為CHO。

Oleic acid: The molecular formula of oleic acid is CHO.

2、密度不同

2. Different densities

硬脂酸：硬脂酸的密度為0.9408。

Stearic acid: the density of stearic acid is 0.9408.

軟脂酸：軟脂酸的密度為0.8527。

Palmitic acid: The density of palmitic acid is 0.8527.

油酸：油酸的密度為0.8910。

Oleic acid: The density of oleic acid is 0.8910.

3、沸點不同

3. Different boiling points

硬脂酸：硬脂酸的沸點為183-184C。

Stearic acid: The boiling point of stearic acid is 183-184C.

軟脂酸：軟脂酸的沸點為351.5C。

Palmitic acid: The boiling point of palmitic acid is 351.5C.

油酸：油酸的沸點為350-360℃。

Oleic acid: boiling point of oleic acid is 350-360 ℃.

硬脂酸是碳十八酸，軟脂酸是碳十六酸，油酸是碳十八含一個雙鍵。

Stearic acid is carbooctadecanoic acid, palmitic acid is carbohexadecanoic acid, and oleic acid is carbooctadecanoic acid with a double bond.

非常大的區別是，硬脂酸和軟脂酸的工業成品是固體，而油酸是液體。

The big difference is that the industrial products of stearic acid and palmitic acid are solid, while oleic acid is liquid.

此外您需要了解的是，硬脂酸主要用作潤滑劑、抗粘劑、助流劑。特別適宜油類、浸膏類藥物的質粒，制成的顆粒具有很好的流動性和可壓性。更多相關產品的信息就來我們網站http://www.shrisa.cn咨詢吧！

In addition, you need to know that stearic acid is mainly used as a lubricant, anti viscosity agent and flow aid. It is especially suitable for the plasmid of oil and extract drugs, and the particles made have good fluidity and compressibility. More information about products can be found on our website http://www.shrisa.cn Consult!