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单词 corallin
释义

corallinn.

/ˈkɒrəlɪn/
Etymology: < Latin corallinus coral-coloured, coral-red: see -in suffix1.
Chemistry.
A red colouring matter, called also Pæonin, obtained in 1861 by treating phenol with sulphuric and oxalic acids. yellow corallin (= aurin n.), a yellowish-red dye, obtained by heating carbolic acid with the same substances; so called because by heating with ammonia it is converted into the red corallin.
ΘΚΠ
the world > matter > colour > named colours > red or redness > red colouring matter > [noun] > dyes and dyestuffs
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1873 Nature 11 Dec. 113 By the addition of corallin..to a bromide of silver film, it becomes sensitive to the yellow ray.
1879 H. Watts Dict. Chem. 2nd Suppl. 391 Corallin is much used for dyeing on wool, and may also be employed for printing on wool.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2018).
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n.1873
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