CI 45350 Chemische Eigenschaften,Einsatz,Produktion Methoden
synthetische
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 Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
