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KMID : 0370219760200010041
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Yakhak Hoeji
1976 Volume.20 No. 1 p.41 ~ p.43
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The Dissociation Constant of Phenol Red Indicator in Mixed Solvents
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김양배/Kim YB
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Abstract
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The dissociation constant of phenol red indicator in mixed solvents was studied. Methanol and ethanol were employed as solvents and studied the changes of pH values of indicator according to the kind and concentration of organic solvent which is mixed into water solution. The effect of methanol solvent on pK is negligible at 40%, 60% and 80% mixing. While in the case of ethanol, the effect of above 40% mixing is not negligible.
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