Abstract
CLASSIC HYDRAZONES AS FINGERMARK DEVELOPERS: AN EXPERIMENTAL ORGANIC CHEMISTRY PROPOSAL. Fingermark dusting powders are an important tool of forensic practitioners, being a first-choice process for most crime scene investigators. The development of new products is of utmost importance for forensic science. Hydrazones comprise compounds derived from ketones or aldehydes in reaction with hydrazines. These reactions are widely studied in organic chemistry because of the versatility of these compounds in organic synthesis. The study of these reactions leads to the understanding of the nucleophilicity of hydrazines, as well as the electrophilicity of aldehydes and ketones. The present work presents one proposal of experimental organic chemistry, aiming at a new application of this classic class of organic substances in forensic chemistry, specifically as a developer of latent fingermarks due to the variations of the color of the compounds, with spectra ranging in a range from 250 to 500 nm. These compounds were identified by Infrared Spectroscopy, Ultraviolet-Visible Spectroscopy and Mass Spectrometry. The development on glass surfaces demonstrated the potential application of these compounds in everyday life situations.
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