英语词汇“phthalic anhydride”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

phthalic anhydride

noun [mass noun] Chemistry

A crystalline compound made by oxidizing naphthalene, used as an intermediate in the manufacture of plastics, resins, and dyes.

In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride....

Alkyd resins are produced by the curing reaction of a material like phthalic anhydride with glycerol in the presence of a fatty acid.
Succinic anhydride has almost the same rate constant as acetic, while maleic anhydride reacts 10 times as quickly and phthalic anhydride four times.

Mid 19th century: phthalic, shortening of naphthalic (see naphthalene).

单词	phthalic anhydride
释义	phthalic anhydride noun [mass noun] Chemistry A crystalline compound made by oxidizing naphthalene, used as an intermediate in the manufacture of plastics, resins, and dyes. A bicyclic anhydride; chemical formula: C₆H₄(CO)₂O. In one method, naphthalene is oxidized with vanadium pentoxide to give phthalic anhydride.... Alkyd resins are produced by the curing reaction of a material like phthalic anhydride with glycerol in the presence of a fatty acid. Succinic anhydride has almost the same rate constant as acetic, while maleic anhydride reacts 10 times as quickly and phthalic anhydride four times. Origin Mid 19th century: phthalic, shortening of naphthalic (see naphthalene).
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