| 单词 | phthalic anhydride |
| 例句 | It is prepared by heating gallic acid with benzoic and sulphuric acids, or with phthalic anhydride and zinc chloride, and is a brown dye known as “anthragallol” or “anthracene-brown.” Coal and What We Get from It A notable example is provided by the phthaleins, which result by the condensation of phthalic anhydride with phenols. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Phthalimide may also be made by using 500 g. of phthalic anhydride and 500 g. of ammonium carbonate which has been previously ground in a mortar. Organic Syntheses The phthaleïn formed from gallic acid and phthalic anhydride really results from the union of the latter with pyrogallol. Coal and What We Get from It Notes Several smaller runs of 25 g. of phthalic anhydride gave the same percentage yield. Organic Syntheses Baeyer, the eminent chemist who subsequently synthesised indigo, published the first of a series of investigations describing the compounds produced by heating phthalic anhydride with phenols. Coal and What We Get from It |
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