Cosmetics

Sodium fluoride is an important fluoride product, widely used in wood preservatives, wine fungicides, electrolytic aluminum regulator, dental fluoride and other fields. Adding sodium fluoride to toothpaste can prevent caries. Fluoride and enamel can form fluorapatite on enamel surface, improve the hardness and acid resistance of enamel, and reduce plaque formation, reduce the incidence rate of dental caries.

It is mainly used for preparing inorganic chemical products and chemical reagents for phenol determination. It is also commonly used as oxidant, laboratory bromine generator, cosmetics, cold perm agent. It is used as wool finishing agent in industry, and also for the extraction and purification of precious and heavy metals.

Castor oil is the fatty oil extracted from the seeds of castor, a plant of the genus ricinus in the family Euphorbiaceae. It is a clear viscous liquid almost colorless or slightly yellow at room temperature, slightly smelly, light and then slightly pungent. Insoluble in water, soluble in ethanol, benzene and carbon disulfide, freely mixed with absolute ethanol, ether, chloroform or glacial acetic acid, but insoluble in mineral oil. The relative density is 0.956 ~ 0.969 (25 ℃), the refractive index is 1.478 ~ 1.480, the acid value is < = 2.0, the saponification value is 176 ~ 186, and the iodine value is 82 ~ 90. Castor oil is mainly a glyceride of higher fatty acids composed of castor alkyd (12-hydroxyoctadecane-9-enoic acid) and oleic acid. R1, R2 and R3 in the molecule can be the same or different, including 80% ~ 88% castor alkyd, 3% ~ 9% oleic acid, palmitic acid, stearic acid, linoleic acid and linolenic acid, Dihydroxystearic acid, glycerol ester is composed of 68.2% tririci nolein, 28.0% di RICINOLEIN, 2.9% monoricinolein and 0.9% non RICINOLEIN. Ash contains a large amount of calcium, iron and silicon, as well as inorganic elements such as aluminum, copper and magnesium and a small amount of manganese, titanium, nickel and zinc.

This product is mainly used for ultraviolet absorption of cosmetics.