Additional file 1 of A method of diamorphine (heroin) administration for harm reduction

Additional file 1. Excel file containing calculations for figures. Sheet 2 contains calculations relating to the pH of a solution containing various quantities of acid. These calculations are then contextualised using the B-index for solutions containing heroin. Sheet three contains data extracted from Tripp et al. on the mass of acid delivered per drop (assuming 100 mg/mL concentration). Sheet 4 contains calculations of heroin solubility as a function of pH.