Universal exponents for a nonionic micellar solution of tetraethylene glycol decylether in water

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Abstract
The angular distribution of light intensity scattered from a nonionic micellar solution of tetraethylene glycol n‐decylether (C10E4) in water has been examined close to its critical point of mixing. Including multiple‐scattering corrections to the light‐scattering data, we have found the exponent γ=1.25±0.02 for the osmotic susceptibility χT and the exponent ν=0.63±0.01 for the long‐range correlation length ξ in the temperature range of 1.03×10−4≤ε≤4.25×10−3, where ε=(Tc−T)/Tc. The values of the critical exponents obtained in this work are in good agreement with the theoretical and experimental ones for three‐dimensional Ising systems.