Is silicone oil in cosmetics harmful to the human body? – Cosmetic silicone oil manufacturer

Silicone oil usually refers to linear polysiloxane products that remain liquid at room temperature. Generally divided into two categories: methyl silicone oil and modified silicone oil. The most commonly used silicone oil, methyl silicone oil, is also called ordinary silicone oil. Its organic groups are all methyl groups. Methyl silicone oil has good chemical stability, insulation and good hydrophobicity. It is medium dimethyl dichlorosilane Add water and hydrolyze to obtain the initial polycondensation ring body. The ring body is cracked and distilled to obtain the low ring body. Then the ring body, head sealing agent and catalyst are put together to telomerize to obtain mixtures with different degrees of polymerization. After reduction, Silicone oil can be obtained by removing low boiling matter by pressure distillation.
Silicone oil is generally a colorless or light yellow, odorless, non-toxic, non-volatile liquid. Silicone oil is insoluble in water, methanol, glycol and -ethoxyethanol, miscible with benzene, dimethyl ether, methyl 7-ketone, carbon tetrachloride or kerosene, slightly soluble in acetone, dioxane, ethanol and butanol . It has a small vapor pressure, high flash point and fire point, and low freezing point. As the number of chain segments n increases, the molecular weight increases and the viscosity also increases. Therefore, silicone oil can have various viscosities, from 0.65 centistokes to millions of centistokes.