Resumen de Note to the Spanish pharmacopoeia, IX edition: Bismuth subnitrate

R. García Villanova, Jesús Thomas Gómez, F. Bosch

• A gravimetric and complexometric technics of evaluation of bismuth subnitrate has been revised. We recommended a complexometric technic, using EDTA and a potassium iodide, Pyrocatechol Violet and thiourea as indicators indifferently, in order to include it in the new Spanish Pharmacopeia edition.