Determination of Solubility of Sodium Salts in Aqueous Surfactant and STPP Solutions Using an Ion Selective Electrode
作者： Xin Wang , Ya-Na Zhang , Yang-Xin Yu
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摘要: Solubility of inorganic salts in the mixed systems containing surfactants and sodium tripolyphosphate (STPP) is very important for production laundry detergents. In this work we explored solubility NaCl, Na2SO4, Na2CO3 aqueous surfactant STPP solutions using an ion selective electrode at 298.15 K. experiments, electromotive forces (EMF) ternary were measured ion-meter with a ion-selective composite relationship between EMF was analyzed by potentiometric analysis. The proposed method has advantages avoiding solid–liquid separation operation solution supersaturation. experimental results indicated that salting-out effect caused can decrease systems.
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