COEXISTENCE PHENOMENA IN THE CRITICAL REGION: V. THE GRAVITY EFFECT IN THE BINARY LIQUID SYSTEM ANILINE-CYCLOHEXANE FROM LIGHT SCATTERING

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Abstract
Transmittance measurements were used to investigate vertical concentration gradients, at temperatures slightly above the critical, in a binary liquid system. The gradients, which are predicted theoretically, did not begin to form during time intervals of several hours. It was found that a theoretical relation between transmittance and concentration gradient did not apply, even qualitatively, to the results obtained. The significance of these observations is discussed.