Benzotriazole

[PaulW]

Is it possible to source benzotriazole in the UK (or from the UK)? I'm interested in trying it to reduce fog in very old silver gelatine paper (e.g. added to the developer as a 1% solution seems to be recommended), but the only source I can find in the UK, Sigma, will only supply research labs.
Many thanks, PaulW

 

[bernard_L]

http://www.moersch-photochemie.de/content/rohchemie
http://disactis.com/store/fr/21-chimie-gnrale
Not in UK, but in EU, so shipping cost should be more reasonable than from US; enjoy while you still can

 

[Frank53]

If you search on ebay, you'll find several suppliers in the UK.
Regards,
Frank

 

[David Allen]

In the UK you can source it from Wet Plate Supplies:

http://www.wetplatesupplies.com/raw-chemicals/benzotriazole-25g.html

Bests,

David.
www.dsallen.de

 

[Gerald C Koch]

Be aware that seriously fogged paper may not be helped with restrainers such as BZT. Often the amount needed causes problems in itself such as loss of paper speed, contrast changes and image tone. It is not a simple cure-all.