roefv skrev:
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> Från wikipedia:
>
> Benzidine is the trivial name for
> 4,4'-diaminobiphenyl, a carcinogenic aromatic
> amine which has been used as part of a test for
> cyanide and also in the synthesis of dyes. It has
> been linked to bladder cancer and pancreatic
> cancer.
>
> In common with benzidine some other aromatic
> amines such as 2-aminonaphthalene have been
> withdrawn from use in almost all industries
> because they are so carcinogenic.
>
> In the past a common test for blood used benzidine
> but this has largely been replaced by tests using
> phenolphthalein / hydrogen peroxide and luminol.
> An enzyme in blood causes the benzidine to be
> oxidized to a polymer which is blue coloured. The
> test for cyanide uses similar chemistry to give
> the blue colour.
>
> Benzidine is a known human carcinogen. [1]
>
>
http://en.wikipedia.org/wiki/Benzidine
Betvivlar ju inte att ämnet i sig är cancerogent men ser som vanligt inga siffror på några mängder som krävs för att det ska bli det. Visar sig säkert snart att man skulle behöva äta 25par handskar för att få i sig skadliga mängder av benzidinet.
mvh
