chrysoidine

[kri-soh-i-din, -deen]

noun

Chemistry.

1. a red-brown or greenish-black, crystalline solid, C 12 H 13 N 4 Cl, that yields orange colors in aqueous or alcohol solution: used chiefly in dyeing cotton and silk.

Word History and Origins

Origin of chrysoidine¹

1875–80; < Greek chrȳsoeid ( ḗs ) like gold ( chrȳs- chrys- + -oeidēs -oid ) + -ine ²

Example Sentences

Chrysoïdine is still used to a large extent, and the brown—now known as “Bismarck brown”—is one of the staple products of the colour manufacturer at the present time.

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In 1877 Hofmann and Witt established the constitution of chrysoïdine, the final outcome of all this work being to show that the three colouring-matters belonged to the same group.

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Chrysoïdine introduced, the third azo-colour.

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Ten years later Caro and Witt discovered an orange colouring-matter belonging to the same class, and the latter introduced the compound into commerce as “chrysoïdine.”

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Solutions of diazo-salts act not only upon amido- and diamido-compounds, as we have seen in the case of aniline yellow and chrysoïdine, but also upon phenols, forming acid azo-colours.

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