What is the difference between methyl silicone oil and dimethyl silicone oil

1. Different harm to human body


1. Silicone oil: Silicone oil is used as a prosthesis product for breast augmentation for women. After more than 40 years of use, in the early 1990s, it was discovered that it may cause a decline in human immune function or cause cancer, and its use is prohibited in Europe and the United States.


2. Dimethicone: It has no obvious acute and chronic poisoning reaction to humans and mammals, and has no mutagenic or carcinogenic effect. No obvious irritation or allergic reaction to eyes or skin, no matter oral, inhalation or skin contact, it is not absorbed by gastrointestinal tract or skin.


Two, the application is different


1. Silicone oil has a very wide range of applications. It is not only used in aviation, cutting-edge technology and military technology departments, but also widely used in various sectors of the national economy. Its application range has been expanded to the fields of construction, electronics, textiles, automobiles, machinery, leather and papermaking, chemical and light industry, metal coatings, medicine and medicine.


The main applications of silicone oil and its derivatives are release agents, shock absorption oils, dielectric oils, hydraulic oils, heat transfer oils, diffusion pump oils, defoamers, lubricants, hydrophobic agents, paint additives, polishing agents, cosmetics and daily necessities Additives, surfactants, particulate matter. Lehe fiber treatment agent, silicone grease, flocculant.


2. Dimethicone: It is widely used in skin care creams, hand creams, skin cleansers, sunscreens, shaving creams, deodorants, body washes, hair conditioners and other cosmetics. It can also be used to make polishes and Defoamer. It can dissolve a variety of vitamins, hormones, fungicides and anti-inflammatory agents, and has good compatibility with various cosmetic ingredients.


It can form a thin hydrophobic layer on the surface of the skin. It can keep vitamins and drugs on the skin surface for a long time, has a stable nutritional effect, can make hair soft and smooth, improve combing, and increase light.


3. Different physical and chemical properties


1. Silicone oil: generally colorless (or light yellow), odorless, non-toxic, non-volatile liquid. Silicone oil is insoluble in water, methanol, glycol and ethanol. It is soluble in benzene, dimethyl ether, methyl ethyl ketone, carbon tetrachloride or kerosene, and slightly soluble in acetone, dioxane, ethanol and butanol. The steam pressure is low, the flash point and ignition point are high, and the freezing point is low.


2. Dimethicone: It is a colorless and clear oily liquid; it is odorless or almost odorless and odorless. Easily soluble in chloroform, ether or toluene, but insoluble in water or ethanol.