2008
DOI: 10.1002/hlca.200890140
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Decanedioic Acid (C10H18O4)/Dodecanedioic Acid (C12H22O4) System: Polymorphism of the Components and Experimental Phase Diagram

Abstract: The experimental temperature/composition phase diagram of the binary system decanedioic acid (C 10 H 18 O 4 )/dodecanedioic acid (C 12 H 22 O 4 ) was established by combining X-ray powder diffraction (XRD), differential-scanning calorimetry (DSC), infrared spectroscopy (IR), scanning electron microscopy (SEM), and thermo-optical microscopy (TOM). Both compounds crystallize in the same ordered form, C (P2 1 /c), which is the phase that melts in both cases. The C form melts in C 12 H 22 O 4 earlier than in C 10 … Show more

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Cited by 11 publications
(2 citation statements)
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“…5.12). This phase behavior is not usual for systems formed by fatty compounds, nevertheless it is similar to the behavior already observed for decanedioic acid + dodecanedioic acid system (VENTOLA et al, 2008). From the Tamman plot, it is also possible to conclude that the two fatty alcohols are partially miscible in the solid phase, having two regions of solid solutions in the extremes of the phase diagram.…”
Section: -Dodecanol + 1-hexadecanol and 1-tetradecanol + 1-octadecano...supporting
confidence: 82%
“…5.12). This phase behavior is not usual for systems formed by fatty compounds, nevertheless it is similar to the behavior already observed for decanedioic acid + dodecanedioic acid system (VENTOLA et al, 2008). From the Tamman plot, it is also possible to conclude that the two fatty alcohols are partially miscible in the solid phase, having two regions of solid solutions in the extremes of the phase diagram.…”
Section: -Dodecanol + 1-hexadecanol and 1-tetradecanol + 1-octadecano...supporting
confidence: 82%
“…Alguns exemplos são os diagramas de fase apresentados por Gbabode et al (2008), Ventolà et al (2008) e Costa et al (2009a;2009b), que apresentam ressolidificação da mistura com o aumento da temperatura (transição metatética ou catatética), polimorfismo das substâncias puras, temperatura da transição polimórfica maior que a temperatura peritética ou eutética, formação de solução sólida etc.…”
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