Edwal Liquid Orthazite in UK?

Gary Holliday

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• Jan 17, 2008

• #1

Anyone come across Edwal Liquid Orthazite in the UK? Mr Cad stocks Edwal, but don't see it on their site.

Thanks

 

PHOTOTONE

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• Jan 17, 2008

• #2

Liquid Orthazite is basically the chemical Benzotriazole (Kodak Anti-fog No. 1) but in a more concentrated solution than you can normally mix up from the basic Benzotriazole powder. However you can get exactly the same functional use by mixing up your own liquid solution of Benzotriazole. I assume you want to add it to your developer to minimize fog?

 

David A. Goldfarb

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• Jan 17, 2008

• #3

Liquid Orthazite is a solution of about 3% benzontriazole with sodium sulfite. I'd guess there's some sort of organic solvent in there like alcohol to achieve a 3% solution.

You can mix a 1% solution of benzotriazole in water yourself, which is what I usually use as an additional restrainer if needed.

 

OP

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Gary Holliday

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• Jan 18, 2008

• #4

I just wanted an easy pre-mixed solution to save myself trying to dissolve BZT. I'm using it to slow down the developer and add a subtle blue-black tone.