The Asian Journal of Experimental Chemistry

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Density, Apparent Molar Volume and Expansibility Behaviour of Alkaline Earth Metal Laurates in Non-Aqueous Medium at Different Temperatures


Affiliations
1 Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India
2 Central Building Research Institute, CBRI (A Constitutent Establishment of CSIR), Ministry of Science and Technology (Government of India), Roorkee (Uttarakhand), India
     

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The density measurement, ρ (gcm-3) for alkaline earth metal (Mg/Ca/Sr/Ba) laurates in non-aqueous medium (50% methanol +50% chloroform) at different temperatures (30-50oC) has been used to evaluate various significant parameters viz. apparent molar volume (Φv) and expansibility (E0surf) to explore their solution behaviour. The critical micclle concentration (c.m.c.) as ascertained from ρ-C plots, is found to decrease with increasing temperature and vary with different metals as Mg>Ca>Sr>Ba. Density for these solutions increases with increasing surfactant concentration and decreasing temperature. Partial molar volume (Φov) and experimental limiting slope (Sv) as obtained from Masson's equation provide information on solute-solvent and solute-solute interactions, respectively. Apparent molar volume (Φv) is found to increase with increasing concentration and increasing temperature.

Keywords

Alkaline Earth Metal Laurates, Critical Micelle Concentration (c.m.c), Density (ρ), Apparent Molar Volume (Φv), Partial Molar Volume (Φov), Expansibility.
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  • Density, Apparent Molar Volume and Expansibility Behaviour of Alkaline Earth Metal Laurates in Non-Aqueous Medium at Different Temperatures

Abstract Views: 377  |  PDF Views: 1

Authors

Anil Kumar
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
Simmi Tyagi
Central Building Research Institute, CBRI (A Constitutent Establishment of CSIR), Ministry of Science and Technology (Government of India), Roorkee (Uttarakhand), India
Deepika Shukla
Department of Chemistry, D.A.V. (P.G.) College, Muzaffarnagar (U.P.), India

Abstract


The density measurement, ρ (gcm-3) for alkaline earth metal (Mg/Ca/Sr/Ba) laurates in non-aqueous medium (50% methanol +50% chloroform) at different temperatures (30-50oC) has been used to evaluate various significant parameters viz. apparent molar volume (Φv) and expansibility (E0surf) to explore their solution behaviour. The critical micclle concentration (c.m.c.) as ascertained from ρ-C plots, is found to decrease with increasing temperature and vary with different metals as Mg>Ca>Sr>Ba. Density for these solutions increases with increasing surfactant concentration and decreasing temperature. Partial molar volume (Φov) and experimental limiting slope (Sv) as obtained from Masson's equation provide information on solute-solvent and solute-solute interactions, respectively. Apparent molar volume (Φv) is found to increase with increasing concentration and increasing temperature.

Keywords


Alkaline Earth Metal Laurates, Critical Micelle Concentration (c.m.c), Density (ρ), Apparent Molar Volume (Φv), Partial Molar Volume (Φov), Expansibility.