Name: Sodium octadecanoate

Foreign name: Sodium stearate

Molecular formula: C17H35COONa

Molecular weight: 306.46

Other name: Sodium stearate

Melting point: 245-255ºC

Density: 1.103 g/cm3

Boiling point: 359.4ºC at 760 mmHg

Flash point: 162.4ºC

Solubility: soluble in hot water and hot ethanol, and slowly soluble in cold water and cold ethanol. It is insoluble in ether, light gasoline, acetone and similar organic solvents. It is also insoluble in electrolyte solutions such as salt and sodium hydroxide. To

use

1. Used in the manufacture of toothpaste, also used as a waterproofing agent, plastic stabilizer, used as a metal heat treatment and plastic stabilizer, used in the manufacture of soap detergents, and used as an emulsifier in cosmetics.

2. Mainly used to make soap detergent. It is used as both active agent and excipient in bar soap, as well as emulsifier for cosmetics and emulsifier for O/W products.