Abstract
The miscibility in the {pentaethylene glycol monoheptyl ether (C7E5) + water} system was investigated by differential scanning calorimetry (DSC). The specific heat capacities cp of chosen nonionic amphiphile (C7E5) aqueous solutions have been measured within temperature range 273.15–338.15 K over wide concentration range. The apparent and partial molar heat capacities were calculated to analyze the aggregation process taking place in the solution. In order to study some additional information on the solution structure two-point scaling theory was used. On the base of temperature dependences of differential heat flow, phase coexistence curve was determined.
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