| 释义 |
methyl orange
meth′yl or′ange
n. an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator. [1880–85] Thesaurus| Noun | 1. | methyl orange - an azo dye used as an acid-base indicator; used for titrations involving weak basesacid-base indicator - an indicator that changes color on going from acidic to basic solutionsazo dye - any dye containing one or more azo groups |
Methyl Orange
Methyl Orange (sodium ρ-dimethylaminoazobenzenesulfonate), a synthetic orange azo dye. It is used as an acid-base indicator in the titration with solutions of strong acids, and also to determine the pH of a medium. Methyl orange changes color from red to orange-yellow at a pH of 3.1–4.4. methyl orange
orange [or´anj] 1. the trees Citrus aurantium and Citrus sinensis or their fruits; the flowers and peels are used in pharmaceutical preparations.2. a color between red and yellow, produced by energy of wavelengths between 590 and 630 nm..3. a dye or stain with this color.methyl orange an orange-yellow aniline dye, used as an indicator with a pH range of 3.2–4.4 and a color change from pink to yellow.meth·yl or·ange (meth'il ōr'enj), A weakly acid dye used as a pH indicator (red at 3.2, yellow at 4.4). Synonym(s): helianthinemethyl orangeA dye used as a pH indicator.CAS # 547-58-0See also: methylmethyl orange
Related to methyl orange: phenolphthalein, Methyl redWords related to methyl orangenoun an azo dye used as an acid-base indicatorRelated Words- acid-base indicator
- azo dye
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