Example: dental hygienist
Aniline Blue
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CHEMICAL RISK ASSESSMENT, HAZARD CONTROL AND ... …
www.sia-toolbox.netPotentially, there is a risk that Nitrobenzene convent in to Aniline Example: Nitrobenzene is a common solvent used and starting raw material for most of the dye intermediates. Nitrobenzene present in some Vat dyes could lead to Aniline ... common in some Red and Blue reactive dyes) may generate 2-Naphtylamine residue during
Experiment 16 Qualitative Analysis of Amines and Amine …
myweb.liu.edu4 (blue to Congo Red). At this point you should see a precipitate. Repeat the benzene sulfonyl chloride treatment using a secondary amine and a tertiary amine. With the secondary amine you should see two layers. Draw off the lower aqueous layer with a separatory funnel and see if the organic layer is soluble in 5% HCl.