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Synonyms: Acid Black 32, 1-hydroxy-8-(2-hydroxy-1-naphthylazo)-2-(4-sulfo-1-naphthylazo)-naphthalene-3,6-disulfonic acid
Fast Sulphon Black F - is a complexometric indicator used with EDTA, almost exclusively used in copper complexation determination.
Fast Sulphon Black is purple when complexed with copper, and turns green when titrated against EDTA, as the EDTA displaces it, being the better complexing agent due to the chelate effect.
WGK Germany 3
Certificate Of Analysis
(For eg. B 1615-0108)
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Crystal violet
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Aniline blue, spirit soluble
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