Thermal decomposition of barium valerate in argon

P. Torres; Poul Norby; Jean-Claude Grivel

doi:10.1016/j.jaap.2015.09.018

Thermal decomposition of barium valerate in argon

P. Torres, Poul Norby, Jean-Claude Grivel

Autonomous University of Barcelona

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

The thermal decomposition of barium valerate (Ba(C4H9CO2)(2)/Ba-pentanoate) was studied in argon by means of thermogravimetry, differential thermal analysis, IR-spectroscopy, X-ray diffraction and hot-stage optical microscopy. Melting takes place in two different steps, at 200 degrees C and 280 degrees C and evidence was found for the solidification of the melt at 380-440 degrees C, i.e. simultaneously with the onset of decomposition. Between 400 degrees C and 520 degrees C (Ba(C4H9CO2)(2) decomposes in two main steps, first into BaCO3 with release of C4H9COC4H9 (5-nonanone), whereas final conversion to BaO takes place with release of CO2. Elemental carbon that is left as a by-product is finally slowly burned by the residual oxygen present in the Ar atmosphere. (C) 2015 Elsevier B.V. All rights reserved.

Original language	English
Journal	Journal of Analytical and Applied Pyrolysis
Volume	116
Pages (from-to)	120-128
ISSN	0165-2370
DOIs	https://doi.org/10.1016/j.jaap.2015.09.018
Publication status	Published - 2015

Keywords

Barium valerate
Thermal decomposition
TG/DTA
FTIR
X-ray powder diffraction

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title = "Thermal decomposition of barium valerate in argon",

abstract = "The thermal decomposition of barium valerate (Ba(C4H9CO2)(2)/Ba-pentanoate) was studied in argon by means of thermogravimetry, differential thermal analysis, IR-spectroscopy, X-ray diffraction and hot-stage optical microscopy. Melting takes place in two different steps, at 200 degrees C and 280 degrees C and evidence was found for the solidification of the melt at 380-440 degrees C, i.e. simultaneously with the onset of decomposition. Between 400 degrees C and 520 degrees C (Ba(C4H9CO2)(2) decomposes in two main steps, first into BaCO3 with release of C4H9COC4H9 (5-nonanone), whereas final conversion to BaO takes place with release of CO2. Elemental carbon that is left as a by-product is finally slowly burned by the residual oxygen present in the Ar atmosphere. (C) 2015 Elsevier B.V. All rights reserved.",

keywords = "Barium valerate, Thermal decomposition, TG/DTA, FTIR, X-ray powder diffraction",

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T1 - Thermal decomposition of barium valerate in argon

AU - Torres, P.

AU - Norby, Poul

AU - Grivel, Jean-Claude

PY - 2015

Y1 - 2015

N2 - The thermal decomposition of barium valerate (Ba(C4H9CO2)(2)/Ba-pentanoate) was studied in argon by means of thermogravimetry, differential thermal analysis, IR-spectroscopy, X-ray diffraction and hot-stage optical microscopy. Melting takes place in two different steps, at 200 degrees C and 280 degrees C and evidence was found for the solidification of the melt at 380-440 degrees C, i.e. simultaneously with the onset of decomposition. Between 400 degrees C and 520 degrees C (Ba(C4H9CO2)(2) decomposes in two main steps, first into BaCO3 with release of C4H9COC4H9 (5-nonanone), whereas final conversion to BaO takes place with release of CO2. Elemental carbon that is left as a by-product is finally slowly burned by the residual oxygen present in the Ar atmosphere. (C) 2015 Elsevier B.V. All rights reserved.

AB - The thermal decomposition of barium valerate (Ba(C4H9CO2)(2)/Ba-pentanoate) was studied in argon by means of thermogravimetry, differential thermal analysis, IR-spectroscopy, X-ray diffraction and hot-stage optical microscopy. Melting takes place in two different steps, at 200 degrees C and 280 degrees C and evidence was found for the solidification of the melt at 380-440 degrees C, i.e. simultaneously with the onset of decomposition. Between 400 degrees C and 520 degrees C (Ba(C4H9CO2)(2) decomposes in two main steps, first into BaCO3 with release of C4H9COC4H9 (5-nonanone), whereas final conversion to BaO takes place with release of CO2. Elemental carbon that is left as a by-product is finally slowly burned by the residual oxygen present in the Ar atmosphere. (C) 2015 Elsevier B.V. All rights reserved.

KW - Barium valerate

KW - Thermal decomposition

KW - TG/DTA

KW - FTIR

KW - X-ray powder diffraction

U2 - 10.1016/j.jaap.2015.09.018

DO - 10.1016/j.jaap.2015.09.018

M3 - Journal article

SN - 0165-2370

VL - 116

SP - 120

EP - 128

JO - Journal of Analytical and Applied Pyrolysis

JF - Journal of Analytical and Applied Pyrolysis

ER -

Thermal decomposition of barium valerate in argon

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Keywords

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