Fluorescein powder, fluorescent dye (Uranine) 100g(3.53oz)
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Fluorescein sodium salt 100g(3.53oz)Synonym: Acid Yellow 73, D & C; Yellow No. 8, NaFl, NaFluo, Sodium fluorescein, UranineFluorescein is also known as a color additive (D&C Yellow no.7)CAS Number 518-47-8Color Index Number 45350EC Number 208-253-0The disodium salt form of fluorescein is known as uranine or D&C Yellow no.8. The disodium salt of fluorescin is highly soluble in water and has a stronger fluorescence than fluorescein.Uses of fluorescein include water-soluble dye added to rainwater in environmental testing simulations to aid in locating and analyzing any water leaks, and in Australia and New Zealand as a methylated spirit dye.Fluorescein dye solutions, typically 15% active, are commonly used as an aid to leak detection during hydrostatic testing of subsea. Leaks can be detected by divers carrying ultraviolet lights.
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