----- Original Message ----- From: "Scott Loveless"
Subject: OT Stop bath
Anybody know anything about shipping stop bath. B&H won't do it just now. Adorama doesn't seem to have a problem letting me add it to my cart. The Camera Store says it must be shipped as a hazardous material and will incur additional charges. Is this something new, or I have I been out of the loop for too long?
Stobath is acetic acid in a 1%-3% concentration (slightly stronger for film)
Common white vinegar is 5% acetic acid solution.
Dilute white vinegar 1:2 for paper, 1:1 for film, and treat it as a one shot chemical.
Or: if you have an industrial chemical supplier in your area, and can get a few other interested people to go in on it, you can get glacial acetic acid fairly cheaply, in 20 litre drums.
William Robb
