nigrosine
/nahy-gruh-seen, -sin/US // ˈnaɪ grəˌsin, -sɪn //UK // (ˈnɪɡrəˌsiːn, -sɪn) //
尼格罗辛,尼古斯,尼格罗宁,尼古拉斯
Definitions
n.名词 noun
- 1
Chemistry.
- : any of the class of deep blue or black dyes obtained by the oxidation of aniline, used as coloring agents in inks and shoe polishes and for dyeing leather, wood, textiles, and furs.
Examples
Nigrosine is a black ink, which, although not producing a black so intense as common ink, possesses various advantages.
Black: Nigrosine black, four ounces, dissolved in one gallon of boiling water.
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