REUTILIZAÇÃO DO ÁCIDO ACETILSALICÍLICO PREPARADO NAS AULAS DE QUÍMICA ORGÂNICA EXPERIMENTAL COMO REVELADOR DE IMPRESSÕES DIGITAIS: UMA APLICAÇÃO NO ENSINO DE QUÍMICA

Abstract

Acetylsalicylic acid (ASA) synthesized in the practical classes of experimental organic chemistry is generally discarded after the classes. Thus, the objective of this work is to find an alternative application for ASA and to promote awareness about the recycling of chemicals in educational and research environments. In addition, it explores the subsequent application of this synthesized ASA in the creation of powdered developers for latent fingerprints. The adopted methodology included the recrystallization of the previously synthesized ASA, followed by the development of three distinct formulations of powdered developers, which include ASA, lignin, and methylene blue. Subsequently, these powders were used to identify latent fingerprints, demonstrating that they are promising substances for such applications.