Perfil de impureza do etil acrilato (CAS 140-88-5): as impurezas típicas incluem ácido acrílico residual | monômeros não reagidos | álcoois como etanol | peróxidos e oligômeros de polimerização | além de inibidores como hidroquinona ou MEHQ e traços de catalisadores. Essas impurezas comprometem estabilidade | cor | acidez e aumentam o risco de polimerização indesejada | exigindo rigor no controle de qualidade. Métodos analíticos comuns são cromatografia gasosa | HPLC e titulação ácido-base | e purificação por destilação fracionada sob vácuo ou passagem por leito adsorvente para atender especificações e limites de impureza.
Referências
“Dermal Oncogenicity Bioassays of Acrylic Acid, Ethyl Acrylate, and Butyl Acrylate.†Journal of Toxicology and Environmental Health, Part a Current Issues, 2021, www.tandfonline.com/doi/abs/10.1080/15287398409530566.
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