Determination of the Thermal Diffusivity of Calcium Salts of Saturated Carboxylic Acids1

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Título :	Determination of the Thermal Diffusivity of Calcium Salts of Saturated Carboxylic Acids1
Palabras clave :	calcium salts open photoacoustic cell carboxylic acids thermal diffusivity
Fecha de publicación :	16-ene-2013
Editorial :	International Journal of Thermophysics
Descripción :	Calcium soaps are materials that serve a wide range of industrial applications such as softeners, detergents, plasticizers, greases, lubricants, cosmetics, and medicines. In addition, calcium salts of saturated carboxylic acids are of interest because of their presence in the staple food of Mexicans and other Central American people: the corn tortilla. Because of their wide use in industry, a knowledge of the thermal properties of the alkaline metal soaps is of great importance. In the present work, the thermal diffusivity of butyric-Ca, valeric-Ca, caprilic-Ca, undecanoic-Ca, palmitic-Ca, and stearic-Ca salts has been determined by photoacoustics. The thermal diffusivity of these salts shows a linear dependence on the number of carbons in the aliphatic chain, and was found within the range 2.60×10−3 to 1.38×10−2 cm2 · s−1, with the highest and lowest values corresponding to butyric-Ca and stearic-Ca, respectively.
URI :	http://www.repositoriodigital.ipn.mx/handle/123456789/11551
Otros identificadores :	International Journal of Thermophysics, Vol. 25, No. 2, March 2004 http://hdl.handle.net/123456789/1212
Aparece en las colecciones:	Doctorado

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