an orange crystalline dye that is the sodium salt of the azo compound of dimethylaniline and sulphanilic acid and is chiefly used as an acid–base…
单词 | θ67270 |
释义 | the world > matter > chemistry > chemical tests > indicators > [noun] > pH indicators > acid or base indicators (3) methyl orange1881 an orange crystalline dye that is the sodium salt of the azo compound of dimethylaniline and sulphanilic acid and is chiefly used as an acid–base… neutral red1890 a dark green crystalline azine dye, C15H16N4·HCl, which forms a red solution in water or alcohol and is used as an acid-base indicator and as a… methyl red1910 a dark red, weakly acidic, water-insoluble dye that is the azo compound of dimethylaniline and anthranilic acid and is used (in alcoholic solution)… |
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