The synthesis and characterization of the Fe(III) complex of sulfathiazole, is presented herein. The compound was prepared by using a conventional precipitation technique, and was characterized by thermogravimetric analysis (TGA), differential thermal (DTA), differential scanning calorimetry (DSC) under oxygen atmosphere, chemical analysis, infrared spectroscopy, powder ray-X diffraction (PXRD), and scanning electron microscopy (SEM). The antibacterial activity of the complex was screened against S. aureus, showing an appreciable activity, compared with the free ligand.
ResumenEn el presente trabajo se preparó mediante una técnica convencional de precipitación la sal de hierro(III) de la N1-Acetil sulfanilamida, también llamada sulfacetamida de hierro(III). Esto tiene como objetivo estudiar sus propiedades fisicoquímicas y proponer eventuales aplicaciones de la misma. Se determinó la composición, densidad, área superficial específica, solubilidad, constante del producto de solubilidad y los parámetros de envejecimiento del compuesto obtenido. Se estudió el proceso de descomposición térmica de la sustancia mediante análisis térmico gravimétrico (TGA) y térmico diferencial (DTA), en atmósfera de oxígeno. Los productos intermedios se identificaron utilizando espectroscopia infrarroja y análisis químicos. El proceso transcurre en varias etapas y el producto final es óxido de hierro(III), que se forma a temperaturas relativamente bajas. Esto sugiere la posible aplicación de los derivados metálicos de la sulfacetamida como precursores para la obtención de óxidos. Palabras clave: sulfonamidas, N1-acetil sulfanilamida, iron salts, descomposición térmica Preparation and Physicochemical Properties of Iron (III) Salt of the N1-Acetyl Sulfanilamide AbstractIn the present work the iron (III) salt of the N1-acetyl sulfanilamide, know as iron (III) sulfacetamide, was prepared by using a conventional precipitation technique. This was done with the purpose of studying their physicochemical properties and to propose eventual applications of the same one. The composition, density, superficial area, solubility, constant of the solubility product, and aging parameters of the compound were determined. The thermal decomposition process was studied using thermo gravimetric (TGA) and differential thermo gravimetric (DTA) analysis in oxygen atmosphere. Infrared spectroscopy and chemical analysis were used to identify intermediate products. The process occurs at various stages, and the final product is iron(III) oxide that is formed at relatively low temperatures. This suggests the application of metallic derivates of sulfacetamide to obtain oxides.
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