TY - JOUR
T1 - Determination of the thermal diffusivity of calcium salts of saturated carboxylic acids
AU - Stolik, S.
AU - Valor, A.
AU - Tomás, S. A.
AU - Reguera, E.
AU - Sánchez, F.
PY - 2004/3
Y1 - 2004/3
N2 - 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.
AB - 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.
KW - Calcium salts
KW - Carboxylic acids
KW - Open photoacoustic cell
KW - Thermal diffusivity
UR - http://www.scopus.com/inward/record.url?scp=3543117285&partnerID=8YFLogxK
U2 - 10.1023/B:IJOT.0000028486.51931.b4
DO - 10.1023/B:IJOT.0000028486.51931.b4
M3 - Artículo
AN - SCOPUS:3543117285
SN - 0195-928X
VL - 25
SP - 511
EP - 517
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 2
ER -