Brown rock/powder heroin questions | DrugsForum
17/3/2017#0183;#32;But it will require an acid, usually citric acid to turn the base in to a salt (heroin citrate). Generally 100mg of citric acid should be able to dissolve 1 gram of relatively high purity brown heroin, the less pure the less acid required. This placing heroin under a cut in the skin, i think that is crazy, ridiculous even, where did you hear this?