I don't think so! Not normally. Hydroquinone, Metol, usually, Sometimes Pyrogallol. The buffer is citric acid and sodium hydroxide (I think). Chris -----Original Message----- From: owner-photoforum@listserver.isc.rit.edu [mailto:owner-photoforum@listserver.isc.rit.edu]On Behalf Of Steve Hodges Sent: 20 September 2002 02:12 To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: Stoned Peeter Vissak wrote: > > Oxalic acid, very salty foods etc. may be a disaster to kidneys. Isn't oxalic acid a developing agent? Don't drink the dev :-) Steve
