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[Chemical Knowledge]：What are the role and uses of propylene oxide

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propylene oxide colorless ether liquid, low boiling point, flammable. Chirality, industrial products are generally racemic mixtures of two enantiomers. Partially miscible with water, miscible with ethanol and ether. Form a binary azeotropic mixture with pentane, pentene, cyclopentane, cyclopentene, and dichloromethane. Toxic, irritating to mucous membranes and skin, can damage the cornea and conjunctiva, cause respiratory pain, skin burns and swelling, and even tissue necrosis

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Four functions and uses

of propylene oxide 1. It can be used as wetting agent, emulsifier, fungicide, plasticizer, detergent and surfactant, etc.

2. Used to prepare propylene glycol, propionaldehyde, isopropanolamine, synthetic glycerol, organic acid ester, etc.

3. Used to make polyurethane foam and polyether.

4. An important raw material for organic synthesis, used to make propylene glycol, acrylic alcohol, propionaldehyde, synthetic glycerin, organic acid, synthetic resin, foam, plasticizer, surfactant, emulsifier, wetting agent, detergent, fungicide, fumigant, etc.

5. It can be used as a solvent for cellulose acetate, cellulose nitrate and resin.

6. Propylene oxide reacts with ammonia to generate isopropanolamine (monoisopropanolamine, diisopropanolamine, triisopropanolamine). Isopropanolamine is alkaline and can absorb acid gases. It is widely used in gas purification, such as desulfurization and decarbon dioxide in the synthetic ammonia industry.

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