Molecular formula: C17H14N2O
temperature: 131 ° C
traits: yellow powder dissolved
: Micro-soluble alcohol, acetone, benzene and nitric acid.
purposes: for major petroleum products, inks, and cultural and educational coloring supplies. Preparation or
Source: diazotization by o-toluidine, and 2 - naphthol coupling derived.
Note: dissolved in concentrated sulfuric acid for the red light purple, diluted into a large red to orange-red precipitation; The concentrated nitric acid solution in the red, diluted into orange; In ethanol was orange-red, dilute hydrochloric acid solution when a slight change, and the carcasses of brown-red sodium hydroxide.
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