Uses
Dyeing silk and cotton. Biological stain.
Definition
ChEBI: Chrysoidine free base is a member of azobenzenes.
Preparation
aniline diazotization, and Benzene-1,3-diamine coupling.
Flammability and Explosibility
Not classified
Properties and Applications
dark yellow orange. Melting point is 118 ~ 118.5 ℃. Soluble in water for yellow orange, soluble in ethanol and Cellosolve, slightly soluble in acetone, insoluble in benzene. In concentrated sulfuric acid to yellow, to orange after diluted; In nitric acid for orange solution.
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Standard
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Light Fastness
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Heat-resistant(℃)
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water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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Poor
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118 ~ 118.5
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90≥194
Sublimation
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Poor
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Poor
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Dissolve
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