Dimethicone
In numerous fields such as modern industry, medicine, daily chemicals, and even food, the well - known chemical term "dimethicone" plays a vital role. As a kind of high - molecular compound, it has become an indispensable part in the formulations of many products due to its unique physical and chemical properties. This article will provide you with a comprehensive understanding of this magical chemical, and deeply explore its characteristics, properties, application fields, and specific identification methods.
Product Features
It is colorless and odorless, and its molecular weight varies with the degree of polymerization.
It ranges from a transparent liquid to a thick semi - solid.
Moreover, it is insoluble in water, methanol, vegetable oil, and paraffin hydrocarbons, slightly soluble in ethanol, butanol, and glycerol, and readily soluble in benzene, toluene, xylene, diethyl ether, and chloroalkanes.
It has a low viscosity - temperature coefficient, a high compressibility, a low surface tension, good water - repellent and moisture - proof properties, as well as low specific heat capacity and low thermal conductivity.
It possesses excellent electrical insulation properties and heat resistance. It has a high flash point and a low freezing point, and can be used continuously within the temperature range of - 50°C to +200°C.
Product Shape
It is a colorless, clear oily liquid, odorless or almost odorless.
This product is highly soluble in chloroform, ether, toluene, ethyl acetate, and methyl ethyl ketone, but insoluble in water or ethanol.
Application Fields
✔ It is used as an antifoaming agent in the chemical, pharmaceutical, and food industries.
✔ It is used as an efficient release agent in the molding and processing of plastics and rubbers.
✔ It is used as a polishing agent for cars, furniture, floors, and leather.
✔ It is used as a high - temperature - resistant dielectric liquid in the electrical and electronic industries.
✔ It is used as hair oil, hair cream, hair beautifier, hair fixative and sunscreen in the cosmetics industry.
Glass, ceramics, metals, textiles, cement products, etc. treated with this product are not only water - repellent, but also corrosion - resistant, mildew - proof, with a smooth surface and a slippery feel. It can also be used as a high - and low - temperature lubricant between various materials, a lubricant for plastic manufacturing, and as a shock - absorbing and damping material for precision machinery and instruments.
Product Identification Methods
Take 0.5 g of this product, add 0.5 ml of sulfuric acid and 0.5 ml of nitric acid, and then incinerate it slowly. A white fibrous substance will be formed, and finally, a white residue will be left.
Take 0.5 g of this product and put it into a test tube. Heat it over a low flame until white fumes appear. Then invert the test tube over another test tube containing 1 ml of 0.1% sodium chromotropic acid - sulfuric acid solution, allowing the white fumes to come into contact with the solution.
Shake the second test tube for 10 seconds, then heat it in a water bath for 5 minutes. The solution will turn purple. The infrared absorption spectrum of this product should be consistent with the reference spectrum (Spectrum Collection 10).
Z-Silicone New Materials Technology (Dongguan) Co., Ltd. --product list of Volatile Silicone Fluids Dimethicone
ZG-201-Viscosity (1/1.5/2/5/10/100/350/1000)