| 单词 | phthalic acid |
| 例句 | One of these compounds, phthalic acid, is obtained from naphthalene, and the other, resorcin or resorcinol, is prepared from benzene. Coal and What We Get from It An important oxidation synthesis of aromatic acids is from hydrocarbons with aliphatic side chains; thus toluene, or methylbenzene, yields benzoic acid, the xylenes, or dimethyl-benzene, yield methyl-benzoic acids and phthalic acids. The Project Gutenberg Encyclopedia Volume 1 of 28 Thus benzoic acid is the carboxyl-derivative of benzene, and the phthalic acid with which we are now concerned is a dicarboxyl-derivative of benzene. Coal and What We Get from It Resorcinol is a phenolic derivative of benzene containing two hydroxyl groups; it is therefore related to phenol in the same way that diamidobenzene is related to aniline or phthalic acid to benzoic acid. Coal and What We Get from It These discoveries necessitated the manufacture of phthalic acid and resorcinol. Coal and What We Get from It Three isomeric phthalic acids are known, but only one of these is of use in the present branch of manufacture. Coal and What We Get from It |
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