addition of succinic acid in phenol water system decreases CST .explain
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Effect of impurities on CST Critical solution temperature is markedly affected by the presence of impurities in the system. ... For example, when succinic acid is added to the phenol-water system, its CST gets lowered.
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The addition of foreign components, such as salt, can cause the critical temperature to rise and phase separation to occur. The addition of salt reduces the miscibility of phenol and water, resulting in phase separation.
As succinic acid is soluble or totally miscible in both water and phenol, when it is put to the water-phenol mixture, it causes the liquids to blend, giving the mixture one phase. The solubility of a material is crucial in determining the purity of that substance.
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