1974
DOI: 10.6028/jres.078a.044
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The enthalpies of combustion and formation of mono-chlorobenzoic acids

Abstract: The e nthalpies of com bu stion of 0-, m-, a nd p-chlorobenzoic acid have beer. determined in a n adi abati c rotating-bomb calorim eter. The enthalpies of forma tion have been obtain ed by co mbination of th e experime ntal data with the accepted values for the enth alpies of formation of water, ca rbo n dioxid e, and aqueous hydroc hloric acid.

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Cited by 11 publications
(12 citation statements)
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“…C'est ainsi qu'un gramme d'acide benzoi'que, comprimt sous la forme de deux pastilles, a t t C brQlC en prCsence de 20 cm3 de solution 0,0589 M de A part l'acide 4-chlorobenzoi'que qui a fait l'objet de plusieurs travaux par calorimktrie de combustion dans le but de l'triger comme substance d'intercomparaison dans 1'Ctude des substances chlorCes (7,8) par cette technique, les deux autres isomkres ont t t t trks peu Ctudits (16,17).…”
Section: Resultatsunclassified
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“…C'est ainsi qu'un gramme d'acide benzoi'que, comprimt sous la forme de deux pastilles, a t t C brQlC en prCsence de 20 cm3 de solution 0,0589 M de A part l'acide 4-chlorobenzoi'que qui a fait l'objet de plusieurs travaux par calorimktrie de combustion dans le but de l'triger comme substance d'intercomparaison dans 1'Ctude des substances chlorCes (7,8) par cette technique, les deux autres isomkres ont t t t trks peu Ctudits (16,17).…”
Section: Resultatsunclassified
“…Les valeurs de l'enthalpie de combustion de l'isomkre para, obtenues avec un appareillage comparable au n6tre et consignCes dans la littkrature, sont comprises entre -3062,8 et -3065,4 kJ mol-I (7,(16)(17)(18)(19)(20)(21). En constquence, notre rtsultat (-3065,6 5 0,s) W mol-I est tout fait compatible avec ces valeurs.…”
Section: Resultatsunclassified
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“…p-Chlorobenzoic acid has been proposed as a secondary standard for chlorine-containing compounds studied by combustion calorimetry. In common with other workers, (15,16) we think that this compound possesses the desired characteristics for a standard substance: stability, low vapour pressure, non-hygroscopicity, ease of handling, and ease of ignition. Nevertheless, we do not believe, as will be indicated in reference 17, that it can always be burnt completely without the use of an auxiliary substance.…”
Section: Introductionmentioning
confidence: 99%
“…were determined as NO It has been reported that the platinum lining of a combustion bomb can promote the oxidation of As 2 O 3 to As 2 O 5 by oxygen prior to the ignition of the sample, according to: (24)(25)(26)(27) As 2 O 3 (aq) + O 2 (aq) = As 2 O 5 (aq).…”
Section: Analysis Of Hno 3 and Of As 2 Omentioning
confidence: 99%