Evaluation of the Self‐Heating Tendency of Vegetable Oils by Differential Scanning Calorimetry

Baylon, Amélie; Stauffer, Éric; Delémont, Olivier

doi:10.1111/j.1556-4029.2008.00871.x

Cited by 12 publications

(17 citation statements)

References 31 publications

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“…The disadvantage of these methods is the fact that vegetable oils contain other substances that can infl uence their tendency to self-combustion. According to the publication (Baylon et al, 2008), these substance are natural or synthetic antioxidants that are added especially to edible oils to prevent their oxidation that to make worse their quality.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of this work is to compare the results obtained by Mackey test with results of iodine number and thermal analysis DTA and TG and to evaluate the applicability of these methods for oils self-combustion assessment. Baylon et al (2008) informs about the use of the thermal analysis for the evaluation of the tendency of oils to self-combustion. Determination of oil composition and the ratio of saturated bonds to unsaturated or determination of iodine number is not considered suffi cient to evaluate the degree of tendency of the oil to selfcombustion.…”

Section: Introductionmentioning

confidence: 99%

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Application of Selected Method for Assessment of Self-Heating of Vegetable Oils

Věžníková¹,

Skřížovská²,

Filipi³

2018

TRANSACTIONS of the VŠB – Technical University of Ostrava, Safety Engineering Series

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One of the groups of materials that tend to self-combustion is vegetable oils. The amount of used oil used is currently increasing and thus the hazard of fires increases. For this reason, it is important to evaluate the tendency of oils for self-heating to minimize self-combustion. This article deals with assessment of the tendency of vegetable oils to self-combustion using two methods: Differential Mackey test and the method of thermal analysis. These methods evaluate the behaviour of oils during their heating. Thermal analysis using the Mettler-Toledo device was performed for oils without support and oils applied on the inert support. It was found that both methods are suitable for evaluation of the exothermic effect that occurs during oxidation of oils after their application on the solid supports. The obtained results of the analyses are the basis for mutual comparison of both way of measurement. Interpretation of these results is a contribution to increasing of safety during using oils.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Selected Method for Assessment of Self-Heating of Vegetable Oils

Věžníková¹,

Skřížovská²,

Filipi³

2018

TRANSACTIONS of the VŠB – Technical University of Ostrava, Safety Engineering Series

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“…1 showed an endothermic peak corresponding to the melting temperature (T m ) at -25.9 , and an exothermic peak at 140.8 . The latter peak is from the formation of hydroporoxides which are primary products of the oxidation of 1 [45,46], caused by its reaction with dissolved oxygen. Samples 3 and 5 did not show the corresponding peak suggesting that their drying properties are lower than that of 1, because of the decrease in the number of C=C bonds due to the bonding with 2.…”

Section: Thermal Properties and Uv-vis Spectroscopic Propertiesmentioning

confidence: 99%

Dye conjugation to linseed oil by highly-effective thiol-ene coupling and subsequent esterification reactions

2015

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Linseed oil, a renewable material obtained from the ripened seeds of the flax plant, was conjugated with C. I. Disperse Red 1 to yield a coloured macromolecule in two experimentally-simplistic coupling steps. Firstly, the abundant presence of carbon-carbon double bonds in linseed oil was exploited to introduce carboxylic acid functionality to linseed oil via a thiol-ene reaction between linseed oil and 3-mercaptopropionic acid. C. I. Disperse Red 1 was then grafted to the carboxylic acid units now present via esterification, offering a coloured product in high yields. On average, 39.1% of the carbon-carbon double bonds in each linseed oil molecule were furnished with a C. I. Disperse Red 1 molecule. The remaining carbon-carbon double bonds may therefore be further exploited for chemical crosslinking, ensuring that the product formed is of potential significance as a coloured, bio-based, surface coating product.

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“…The radical attacks a C-H bond, most likely one of the methyl group present between two double bonds (most common configuration). The resulting chain is stabilized in a resonance configuration (4).…”

Section: Introductionmentioning

confidence: 99%

“…These double-bonded atoms weaken the C-H bonds of the adjacent carbon atoms, thus decreasing the bond dissociation energy necessary to break them (4).…”

Section: Introductionmentioning

confidence: 99%