Ammonium Phosphate Dibasic

It is used as Fertilizer, fire retardant, yeast nutrient in winemaking and brewing mead. DAP is also used as a yeast nutrient in winemaking and brewing mead; It is also used as an additive in some brands of cigarettes purportedly as a nicotine enhancer; to prevent afterglow in matches, in purifying sugar; as a Flux for soldering tin, copper, zinc and brass; and to control precipitation of alkali-soluble and acid-insoluble colloidal dyes on wool. Commonly used in plant tissue culture media.