Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 351, Issue 5, Pages 444-454Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnoncrysol.2005.01.035
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We report on the discovery of a new solid, presumably amorphous n-butanol at ambient pressure. According to the literature data the melting point T-m of n-butanol is 183 K and the glass transition temperature T-g is 118 K. If kept isothermally at a fixed temperature between 130 and 160 K, the supercooled liquid n-butanol undergoes remarkable phase transformations to a solid phase. The new phase converts to liquid at a temperature of about 170 K. It is presumably amorphous because foreign substances dissolved in liquid n-butanol keep the same state in this new phase of butanol. The kinetics of free radical oxidation by dissolved oxygen in both solid amorphous phases is investigated in detail. (c) 2005 Elsevier B.V. All rights reserved.
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