Thermophysical Study of Several Barbituric Acid Derivatives by Differential Scanning Calorimetry (DSC)

Manuel Temprado; María Victoria Roux; Francisco Ros; Rafael Notario; Marta Segura; James S. Chickos

doi:10.1021/je1008944

Thermophysical Study of Several Barbituric Acid Derivatives by Differential Scanning Calorimetry (DSC)

Manuel Temprado, María Victoria Roux, Francisco Ros, Rafael Notario, Marta Segura, James S. Chickos

University of Missouri-St. Louis

Research output: Contribution to journal › Article › peer-review

Abstract

The present study reports a differential scanning calorimetry (DSC) study of the barbituric acid derivatives: 1,3-dimethylbarbituric acid [CAS 769-42-6], 5,5-dimethylbarbituric acid [CAS 24448-94-0], 1,3-diethylbarbituric acid [CAS 32479-73-5], 1,3,5-trimethylbarbituric acid [CAS 7358-61-4], 1,5,5-trimethylbarbituric acid [CAS 702-47-6], and tetramethylbarbituric acid [CAS 13566-66-0] in the temperature interval from T = 268 K to their respective melting temperatures. Temperatures, enthalpies and entropies of fusion, and the heat capacities of the solid compounds as a function of temperature are reported.

Original language	American English
Journal	Journal of Chemical & Engineering Data
Volume	56
DOIs	https://doi.org/10.1021/je1008944
State	Published - Feb 10 2011

Keywords

Differential scanning calorimetry
Entropy
Heat capacity
Phase transitions
Reaction products

Disciplines

Inorganic Chemistry

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10.1021/je1008944License: Unspecified

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title = "Thermophysical Study of Several Barbituric Acid Derivatives by Differential Scanning Calorimetry (DSC)",

abstract = " The present study reports a differential scanning calorimetry (DSC) study of the barbituric acid derivatives: 1,3-dimethylbarbituric acid [CAS 769-42-6], 5,5-dimethylbarbituric acid [CAS 24448-94-0], 1,3-diethylbarbituric acid [CAS 32479-73-5], 1,3,5-trimethylbarbituric acid [CAS 7358-61-4], 1,5,5-trimethylbarbituric acid [CAS 702-47-6], and tetramethylbarbituric acid [CAS 13566-66-0] in the temperature interval from T = 268 K to their respective melting temperatures. Temperatures, enthalpies and entropies of fusion, and the heat capacities of the solid compounds as a function of temperature are reported. ",

keywords = "Differential scanning calorimetry, Entropy, Heat capacity, Phase transitions, Reaction products",

author = "Manuel Temprado and Roux, \{Mar{\'i}a Victoria\} and Francisco Ros and Rafael Notario and Marta Segura and Chickos, \{James S.\}",

year = "2011",

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day = "10",

doi = "10.1021/je1008944",

language = "American English",

volume = "56",

journal = "Journal of Chemical \& Engineering Data",

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TY - JOUR

T1 - Thermophysical Study of Several Barbituric Acid Derivatives by Differential Scanning Calorimetry (DSC)

AU - Temprado, Manuel

AU - Roux, María Victoria

AU - Ros, Francisco

AU - Notario, Rafael

AU - Segura, Marta

AU - Chickos, James S.

PY - 2011/2/10

Y1 - 2011/2/10

N2 - The present study reports a differential scanning calorimetry (DSC) study of the barbituric acid derivatives: 1,3-dimethylbarbituric acid [CAS 769-42-6], 5,5-dimethylbarbituric acid [CAS 24448-94-0], 1,3-diethylbarbituric acid [CAS 32479-73-5], 1,3,5-trimethylbarbituric acid [CAS 7358-61-4], 1,5,5-trimethylbarbituric acid [CAS 702-47-6], and tetramethylbarbituric acid [CAS 13566-66-0] in the temperature interval from T = 268 K to their respective melting temperatures. Temperatures, enthalpies and entropies of fusion, and the heat capacities of the solid compounds as a function of temperature are reported.

AB - The present study reports a differential scanning calorimetry (DSC) study of the barbituric acid derivatives: 1,3-dimethylbarbituric acid [CAS 769-42-6], 5,5-dimethylbarbituric acid [CAS 24448-94-0], 1,3-diethylbarbituric acid [CAS 32479-73-5], 1,3,5-trimethylbarbituric acid [CAS 7358-61-4], 1,5,5-trimethylbarbituric acid [CAS 702-47-6], and tetramethylbarbituric acid [CAS 13566-66-0] in the temperature interval from T = 268 K to their respective melting temperatures. Temperatures, enthalpies and entropies of fusion, and the heat capacities of the solid compounds as a function of temperature are reported.

KW - Differential scanning calorimetry

KW - Entropy

KW - Heat capacity

KW - Phase transitions

KW - Reaction products

UR - http://pubs.acs.org/doi/full/10.1021/je1008944

U2 - 10.1021/je1008944

DO - 10.1021/je1008944

M3 - Article

VL - 56

JO - Journal of Chemical & Engineering Data

JF - Journal of Chemical & Engineering Data

ER -

Thermophysical Study of Several Barbituric Acid Derivatives by Differential Scanning Calorimetry (DSC)

Abstract

Keywords

Disciplines

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