Ethylene glycol CAS NO.107-21-1

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Chemical properties: white or light yellow crystalline powder.Soluble in water, slightly soluble in alcohol, insoluble in ether.

Use as brightener in nickel-iron alloy electroplating.It can be used alone to make the plating solution clear, the surface of the plating is bright, and the crystallization is fine. The dosage is 0.1-0.2g /L.

USES food additive, electroplating complexing agent, water quality stabilizer, printing and dyeing industry homogenizer, steel surface treatment agent, etc

Used in pharmaceutical industry

Chemical properties colorless transparent viscous liquid, sweet taste, with hygroscopic.It is miscible with water, low aliphatic alcohols, glycerin, acetic acid, acetone and similar ketones, aldehydes, pyridines and similar coal tar alkali, slightly soluble in ether, almost insoluble in benzene and its homologues, chlorinated hydrocarbon, petroleum ether and oil.

The main USES are polyester resin, alkyd resin, plasticizer, antifreeze, cosmetics and explosives

Use as analytical reagent, chromatographic reagent and capacitor medium

Ethylene glycol is the intermediate of the fungicide pentecyclozole and oxazole.

Purpose ethylene glycol is mainly used in the preparation of antifreeze for automobile cooling system and the production of polyethylene terephthalate (raw material of polyester fiber and polyester plastics), also can be used in the production of synthetic resin, solvents, lubricants, surfactants, softeners, humidifiers, explosives and so on.Glycol is often used in place of glycerin as a water mixture and as a solvent in the leather and pharmaceutical industries, respectively.Glycol is highly soluble, but it is easily metabolized and oxidized to produce toxic oxalic acid, so it cannot be widely used as a solvent.The addition of ethylene glycol to the hydraulic fluid can prevent the erosion of rubber in the system by oil-based hydraulic fluid.The water-based hydraulic fluid with ethylene glycol as the main component is a kind of non-combustible hydraulic fluid, which is used in aircraft, automobile and high-temperature moulding machines.Glycol has many important derivatives.Low molecular weight polyethylene glycol (diethylene glycol, diethylene glycol, triethylene glycol, or diethylene glycol, triethylene glycol, tetraethylene glycol, respectively) is actually a byproduct of the synthesis of ethylene glycol from ethylene oxide hydrate.Diethylene glycol can be used as a humidifier, plasticizer, sizing agent, printing ink solvent, natural gas desiccant and aromatic extraction solvent.Diethylene glycol dinitrate is similar to ethylene glycol dinitrate and is also an important industrial explosive.High molecular weight polyethylene glycol (peg) is also a useful derivative of colorless transparent viscous liquids to waxy solids, depending on the molecular weight.Used as lubricant, water retaining agent, solvent and intermediate in rubber and food industry. Also used as additive in cosmetics, textile and paper industry.Glycol esters come in many varieties and are widely used as solvents.The glycol ester of long chain fatty acid has the surface improvement performance, can be used alone or Shared with the surfactant, as emulsifier, stabilizer, dispersant, humidifier, foaming agent and suspending agent.Ethylene glycol reacts with urea to form cycle-ethylene-urea, used in textile industry.Diethylene glycol disodium reacts with 1, 2-dibromoethane to form dioxane, a special solvent.Different oxidants or reaction conditions were used for ethylene glycol.After oxidation, glyoxal, glyoxal, glycolic acid and oxalic acid can be obtained.

It is mainly used in the production of synthetic resin, surfactant and explosives, and also used as antifreeze

Use gas chromatographic stationary liquid (highest use temperature 50 ℃, the solvent of chloroform), separation and analysis of low boiling point oxygen-containing compounds, amine compounds, nitrogen or oxygen heterocyclic compounds.Determination of calcium oxide in cement, solvent, antifreeze, manufacture polyester resin, plasticizer, cosmetics, explosives, cold lubricants, surfactants, varnish, dyes, ink, organic synthesis