John Paul Bautista

Diethylene glycol (DEG) is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, poisonous,and hygroscopic liquid with a sweetish taste. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. 1.It is used as gas dehydrating agent and aromatic extraction solvent, as well as lubricant, softener and finishing agent of textiles, as well as solvents such as plasticizer, humidifier, sizing agent, nitrocellulose, resin and grease. 2. Used as brake oil mixture, celluloid softener, antifreeze and diluent in lotion polymerization. 3. Used as antifreeze, gas dehydrating agent, plasticizer, solvent, aromatic extractant, cigarette hygroscopic agent, textile lubricant and finishing agent, paste and anti drying agent of various adhesives, reducing dye hygroscopic cosolvent

Acetonitrile is an organic compound with the molecular formula CH3CN or c2h3n. It is a colorless liquid, highly volatile, with a special smell similar to ether, excellent solvent performance, and can dissolve a variety of organic, inorganic and gaseous substances. It has certain toxicity and is infinitely miscible with water and alcohol. Acetonitrile is an important organic intermediate, which can undergo typical nitrile reactions and is used to prepare many typical nitrogen-containing compounds. Acetonitrile can be used as a solvent for the synthesis of vitamin A, cortisone, carboamine drugs and their intermediates, and also as an active medium solvent for the manufacture of vitamin B1 and amino acids. It can replace chlorinated solvent. It is used in vinyl coating, fatty acid extractant, alcohol denaturant, butadiene extractant and solvent of acrylonitrile synthetic fiber. It is also used in fabric dyeing, lighting, perfume manufacturing and photosensitive material manufacturing. Chemical analysis and instrumental analysis Acetonitrile is an organic modifier and solvent used in thin layer chromatography, paper chromatography, spectroscopy and polarographic analysis in recent years. Since high-purity acetonitrile does not absorb ultraviolet light at 200nm ~ 400nm, an application being developed is as a solvent for high-performance liquid chromatography HPLC, which can make the analytical sensitivity as high as 10-9 levels. Intermediate of synthetic medicine and pesticide Acetonitrile can be used as an intermediate in the synthesis of various medicines and pesticides. In medicine, it is used to synthesize a series of important pharmaceutical intermediates, such as vitamin B1, metronidazole, ethambutol, aminopteridine, adenine and antitussive; In pesticides, it is used to synthesize pyrethroid insecticides, acetaminophen and other pesticide intermediates. Semiconductor cleaning agent Acetonitrile is an organic solvent with strong polarity. It has good solubility in grease, inorganic salt, organic matter and polymer compounds. It can clean grease, wax, fingerprints, corrosive agent and flux residues on silicon wafers. Therefore, high purity acetonitrile can be used as semiconductor cleaner.

Vaseline is a semi-liquid mixture of alkanes or saturated hydrocarbons, also known as petrolatum, which is obtained by fractional distillation of petroleum. Its state is between solid and liquid at room temperature, and there are three colors of brown, yellow and white due to different uses. Natural petroleum jelly is derived from petroleum residual oil concentrates such as paraffinic heavy oil; artificial petroleum jelly is derived from a mixture of mineral oil thickened with pure ceresin, paraffin and paraffin grease. Vaseline has a smell of mineral oil, but no kero sene. Can be used as raw materials for medicines and cosmetics, and also for machine lubrication. 1.Helps soothes chapped skin. 2.Highly effectively protests the skin from the drying effects of weather. 3.Retains essential moisture in your skin leaving it nourished and radiant. Application Vaseline is a mineral wax, it will not be absorbed by the skin, it can form a protective film on the skin surface, so that the skin's water is not easy to evaporate and lose, and it is extremely insoluble in water, and can adhere to the skin for a long time, so it has a very Good moisturizing effect, very suitable for dry skin. Can be used as lip balm, hand cream, face or body, is a very good moisturizer. It also has the effect of removing scars. 2. Vaseline is non-irritating, stable and difficult to deteriorate, and it is not easy to cause human sensitivity. It is most suitable for people who are allergic to the fragrances and alcohols added to general moisturizing product.