Unfortunately, the answer is no. Potassium bromide (KBr) serves a different purpose in emulsions than as an ingredient in emulsion making. There are three halides practically useable in emulsions -- chloride, bromide, and iodide. Cl and Br can stand alone, or be combined. Either or both can be combined with a miniscule amount of iodide, but iodide doesn't work as a stand alone halide.
Bromide, usually with a tiny bit of iodide, is the classic dry plate recipe. Kevin leaves out the iodide and does great (maybe a tad slower) but Chris Patton uses sea water, which is sodium chloride -- table salt. If you can't get potassium bromide, you might go that way. Get a brand with no additives at all.
Last edited by dwross; 07-15-2011 at 09:28 AM. Click to view previous post history.
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