From another bbs.
"In addition to some of the sources mentioned above, you may want to try Photographers Formulary. I've ordered from them numerous times (silver nitrate as well as other hazardous chemicals) and have never been charged the hazardous shipping fee. "
"Karen Jackson, May 09, 2003; 01:15 p.m.
Hi Colm and all others,
Our Company is Tri-Ess Sciences, Inc. in Burbank, CA we are a major supplier of Photographic Chemicals and we specialize in selling small quantities. We can provide you will Silver Nitrate and can ship small amounts with no hazard charges. Please visit our website at:
http://www.tri-esssciences.com Click on "Chemicals" on our homepage and then click on "Photographic Chemicals". Hope to hear from you soon.
Karen Customer Service at Tri-Ess Sciences, Inc."
I found their website
http://www.tri-esssciences.com/