The Asian Journal of Experimental Chemistry

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Density Measurement of Alkali and Alkaline Earth Metal Myristates in Non-Aqueous Medium (30°-50°C)


Affiliations
1 Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India
     

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The present investigation deals with density measurement of alkali (Li, Na, K) and alkaline earth metal (Mg, Ca, Sr, Ba) myristates in 50% methanol-50% chloroform (V/V) solvent-mixture at 30°-50°C. The data have been used to determine critical micelle concentration, cmc, and compute other significant parameters viz. apparent (Φv) and partial (φ°v) molar volumes and partial molar expansibility, E°surfactant. The decreasing cmc with the increase in temperature is in agreement with the result obtained from specific conductance measurements. The variation of cmc with alkali and alkaline earth metals also follows the same order as was found in the study on conductance measurements.

Keywords

Critical Micelle Concentration (c.m.c.), Density, Molar Volume and Expansibility.
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  • Density Measurement of Alkali and Alkaline Earth Metal Myristates in Non-Aqueous Medium (30°-50°C)

Abstract Views: 393  |  PDF Views: 1

Authors

Anil Kumar
Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India
Deepika Shukla
Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India
Deepti Tyagi
Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India

Abstract


The present investigation deals with density measurement of alkali (Li, Na, K) and alkaline earth metal (Mg, Ca, Sr, Ba) myristates in 50% methanol-50% chloroform (V/V) solvent-mixture at 30°-50°C. The data have been used to determine critical micelle concentration, cmc, and compute other significant parameters viz. apparent (Φv) and partial (φ°v) molar volumes and partial molar expansibility, E°surfactant. The decreasing cmc with the increase in temperature is in agreement with the result obtained from specific conductance measurements. The variation of cmc with alkali and alkaline earth metals also follows the same order as was found in the study on conductance measurements.

Keywords


Critical Micelle Concentration (c.m.c.), Density, Molar Volume and Expansibility.