Lime liniment is a water-in-oil emulsion. It is a W/O emulsion made by saponifying calcium hydrogen with a small amount of free fatty acids contained in vegetable oil or peanut oil to form calcium soap (nascent soap) as emulsifier, and then emulsifying vegetable oil or peanut oil.

Preparation of lime liniment: (new saponification method) Dissolve 3g of calcium hydroxide in 10ml of water to obtain a saturated solution, put 5ml of calcium hydroxide supernatant and 5ml of vegetable oil in the same test tube, and shake vigorously until an emulsion is formed.

Extended data:

Emulsifier of lime liniment:

The development of sorbitol fatty acid ester can reduce the interfacial force and the energy needed to form emulsion, and emulsifier can improve the surface force between each phase in emulsion. Liquid crystal emulsion since 200 years. ? Emulsifier and its application Since 2060, it is biodegradable and does not contain emulsifier, thus improving the energy of emulsion.

In food and cosmetics. Emulsifier, phospholipid, non-aqueous emulsion, glycolipid emulsifier and other new emulsifiers, people put forward some industrial uses of emulsifiers such as multifunction, high purity, hydrophilic and lipophilic groups, high efficiency and so on. The types of emulsions have expanded from the traditional oil-in-water and water-in-oil types to multiple emulsions, chromogenic emulsions, phospholipid emulsions and liposome emulsions.