Dimethyl silicone oil, a well-known chemical term, plays an important role in many fields such as modern industry, medicine, daily chemicals and even food. As a polymer compound, it has become an indispensable part of many product formulas with its unique physical and chemical properties. This article will deeply explore the characteristics, properties, application fields and specific identification methods of dimethyl silicone oil, and give you a comprehensive understanding of this magical chemical.
NO.1 Product Features
Colorless and odorless, molecular weight varies with degree of polymerization
Transparent liquid to thick semi-solid
Insoluble in water, methanol, vegetable oil and paraffin, slightly soluble in ethanol, butanol and glycerol, easily soluble in benzene, toluene, xylene, ether and chlorinated alkanes ◆Small viscosity-temperature coefficient, large compressibility, small surface tension, good hydrophobicity and moisture resistance, small specific heat capacity and thermal conductivity.
It has excellent electrical insulation properties and heat resistance, high flash point and low freezing point, and can be used for a long time in the temperature range of -50~+200°C.
NO.2 Product properties
Colorless clear oily liquid, odorless or almost odorless
This product is easily soluble in trigas, ether, toluene, ethyl acetate and methyl ethyl ketone, but insoluble in water or ethanol.
NO.03 Application fields
Used as defoaming agent in chemical, pharmaceutical and food industries
Used as high-efficiency demoulding agent in the molding process of plastics and rubber
Used as polishing agent for automobiles, furniture, floors and leather
Used as high-temperature resistant dielectric liquid in electrical and electronic industries
Used as hair oil, hair cream, hair styling agent, 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 smooth surface and smooth feel. It can also be used as high and low temperature lubricant between various materials, lubricant for plastic manufacturing, and as anti-vibration damping material for precision machinery and instruments.
Product identification method
Take 0.5g of this product, add 0.5ml of sulfuric acid and 0.5ml of nitric acid, and slowly burn to form white fibrous substances, leaving white residues.
Take 0.5g of this product, put it in a test tube, heat it on a low fire until white smoke appears, and invert the test tube on another test tube containing 1ml of 0.1% sodium chromotropic acid sulfuric acid solution so that the white smoke contacts the solution.
Shake the second test tube for 10 seconds, heat it in a water bath for 5 minutes, and the solution will appear purple. The infrared absorption spectrum of this product should be consistent with the reference spectrum (spectral set 10).
