Properties&Application: In the air, it can slowly oxidize the coloring, darken the color, and produce putrefaction. It has good solubility in water, and the aqueous solution is alkaline. Due to partial hydrolysis to insoluble acid soap and sodium hydroxide, the liquid becomes turbid. It is neutral and does not hydrolyze in ethanol. Soluble in about 20 times of ethanol, almost insoluble in ether, petroleum ether and other organic solvents. This product is made by continuous saponification of imported oleic acid, with excellent emulsification, permeability and decontamination. It is widely used in many fields, such as flotation mineral collector, rubber isolation, soap making, building waterproof new material additive, lubricant, emulsifier, plastic stabilizer, etc.