The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 5-Methylfuran-2(3H)-one( cas:591-12-8 ) is researched.Product Details of 591-12-8.McPartlin, Michael W.; Italiano, Brandon R.; Tiano, Thomas M.; Pilkenton, Sarah J.; Lawton, Timothy J. published the article 《An approach to identifying fibers and evolved compounds from flame resistant fabrics》 about this compound( cas:591-12-8 ) in Journal of Analytical and Applied Pyrolysis. Keywords: flame resistant fabric fiber evolved compound identification. Let’s learn more about this compound (cas:591-12-8).
Flame resistant (FR) fabrics have use in civilian, military, and industrial applications. This work describes the development of a methodol. aimed at identifying the fiber composition of blended fabrics of unknown composition Here, FR fabrics used in military uniforms, are studied using a combination of XPS, isothermal thermogravimetric anal. (TGA) and pyrolysis gas chromatog./mass spectrometry (Py-GC-MS). Elemental anal. of the fabrics using XPS yielded a preliminary determination of the composition of the polymer(s) and aided in the identification of FR additives. TGA and Py-GC-MS experiments were used for subsequent compound identification. In TGA the temperature of mass loss events was compared to reference materials, and in Py-GC-MS the pyrolysis products of the blended FR fabrics were compared to those from a series of potential parent fibers. It was possible to discern the composition of the parent fibers and the type of FR treatment added to fabrics because the thermal decomposition chem. did not significantly change by blending the fibers to make fabrics.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia