Dynamic pyrolytic reaction mechanisms, pathways, and products of medical masks and infusion tubes was written by Xu, Weijie;Liu, Jingyong;Ding, Ziyi;Fu, Jiawei;Evrendilek, Fatih;Xie, Wuming;He, Yao. And the article was included in Science of the Total Environment in 2022.HPLC of Formula: 5444-75-7 The following contents are mentioned in the article:
Given the COVID-19 epidemic, the quantity of hazardous medical wastes has risen unprecedentedly. This study characterized and verified the pyrolysis mechanisms and volatiles products of medical mask belts (MB), mask faces (MF), and infusion tubes (IT) via thermogravimetric, IR spectroscopy, thermogravimetric-Fourier transform IR spectroscopy, and pyrolysis-gas chromatog./mass spectrometry analyses. Iso-conversional methods were employed to estimate activation energy, while the best-fit artificial neural network was adopted for the multi-objective optimization. MB and MF started their thermal weight losses at 375.8 °C and 414.7 °C, resp., while IT started to degrade at 227.3 °C. The average activation energies were estimated at 171.77, 232.79, 105.14, and 205.76 kJ/mol for MB, MF, and the first and second IT stages, resp. Nucleation growth for MF and MB and geometrical contraction for IT best described the pyrolysis behaviors. Their main gaseous products were classified, with a further proposal of their initial cracking mechanisms and secondary reaction pathways. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7HPLC of Formula: 5444-75-7).
2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.HPLC of Formula: 5444-75-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics