Hi, I dried amphetamine salt in oven (i think it was phosphate, based on visuals from G.Pattons post about amp salts). Before drying it was white sticky crystals, but not a paste, after drying it became yellowish. Temperature in the oven was something between 100C-150C. Is it possible that some of the amp decomposed? I am thinking that only sulfate could turn yellow if i had sulfate salt. Please explain to me what could have made my amp yellowish. Thanks
