CI 45350 化学特性,用途語,生産方法
製造方法
Resorcinol and Phthalic anhydride alone or in the presence of sulfuric acid Zinc chloride or condensation, namely for fluorescein, again into free acid.
Properties and Applications
yellow. Soluble in water and ethanol as yellow, with strong green fluorescence. In concentrated sulfuric acid to yellow, with weak fluorescence, dilution after yellow, with yellow precipitation. Dye aqueous solution to join sodium hydroxide color dark, with dark green fluorescence. The dye for C.I. Acid Yellow 73 free Acid. Used in cosmetics coloring.
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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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Insoluble
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General
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No change
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CI 45350 上流と下流の製品情報
原材料
準備製品