phenylenediamine

[¦fen·əl‚ēn′dī·ə‚mēn] (organic chemistry) C₆H₄(NH₂)₂ Also known as diaminobenzene. Any of three toxic isomeric crystalline compounds that are diamino derivatives of benzene; the ortho form, toxic colorless crystals melting at 102-104°C and soluble in alcohol, ether, water, and chloroform, is used to manufacture dyes, in photographic developers, and as a chemical intermediate; the meta form, colorless crystals unstable in air, melting at 63°C, and soluble in alcohol, ether, and water, is used to manufacture dyes, in textile dyeing, and as a nitrous acid detector; the para form, white to purple crystals melting at 147°C, soluble in alcohol and ether, and irritating to the skin, is used to manufacture dyes, in chemical analysis, and in photographic developers.

单词	phenylenediamine
释义	phenylenediamine phenylenediamine [¦fen·əl‚ēn′dī·ə‚mēn] (organic chemistry) C₆H₄(NH₂)₂ Also known as diaminobenzene. Any of three toxic isomeric crystalline compounds that are diamino derivatives of benzene; the ortho form, toxic colorless crystals melting at 102-104°C and soluble in alcohol, ether, water, and chloroform, is used to manufacture dyes, in photographic developers, and as a chemical intermediate; the meta form, colorless crystals unstable in air, melting at 63°C, and soluble in alcohol, ether, and water, is used to manufacture dyes, in textile dyeing, and as a nitrous acid detector; the para form, white to purple crystals melting at 147°C, soluble in alcohol and ether, and irritating to the skin, is used to manufacture dyes, in chemical analysis, and in photographic developers.
随便看	sphaerobolaceae sphaerocarpaceae sphaerocarpales sphaerocarpos sphaerocarpus sphaeroceridae sphaerocillus sphaerocrystal sphaerocytophaga sphaerodoridae sphaerolaimidae sphaerolitic sphaeroltilus sphaeromatidae sphaeromyxa sphaerophoraceae sphaerophorus sphaeroplast sphaeropleineae sphaeropsidaceae sphaeropsidales sphaeropteris sphaeropteris medullaris sphaerosiderite sphaerospore