The liquid-liquid equilibrium (LLE) phase boundaries were determined experimentally for the ternary systems containing refined sunflower oil, methanol, and one of ten potential cosolvents at 308.2 K under atmospheric pressure by using cloud point method. n-Butylamine was found to be one of the best cosolvents, which could substantially enhance the miscibility between the oil and methanol. The L...

FeCO3 is present as a CO2 corrosion product in many industrial processes and takes part the natural mineralization process. This work presents solid–liquid equilibrium of system FeCO3-H2O at 5–120 °C. The solubility showed little temperature dependence. However, affected kinetics rate constants for dissolution increased with temperature. activation energy water was determined to 1.55 kJ mol−1. ...

Prediksi Kesetimbangan Uap Cair Sistem Biner Aseton + Amil Alkohol pada Tekanan 101,3 kPa bertujuan untuk mengetahui kesetimbangan uap-cair sistem tersebut berdasarkan Hukum Raoult dan mengkorelasikan data dengan model Universal Quasi-Chemical (UNIQUAC). diawali menentukan fraksi mol campuran biner aseton amil alkohol menggunakan persamaan tekanan kPa. Kemudian, yang didapat dikorelasikan perhi...

liquid-liquid equilibria for the (water + lactic acid + benzyl alcohol or p-xylene) ternary systems were investigated at atmospheric pressure and in the temperature range from 298.15-318.15 k. the studied systems exhibit two types of liquid-liquid equilibrium (lle) behavior. the system consisting of benzyl alcohol displays type-1 lle behavior, while a type-2 behavior is exhibited by the other s...

In the present study, in order to predict the activity coefficient of inorganic ions, 12 cases of aqueous chloride solution were considered (AClx=1,2; A=Li, Na, K, Rb, Mg, Ca, Ba, Mn, Fe, Co, Ni). For this study, the UNIQUAC thermodynamic model is desired and its adjustable parameters are optimized with the Genetic + PSO algorithm. The optimization of the UNIQUAC model with PSO+ genetic algorit...

Prediksi Kesetimbangan Uap-Cair bertujuan untuk mengetahui kesetimbangan uap-cair sistem biner Tersier Butanol + Isoamil Alkohol pada tekanan 101,3 kPa dan mengkorelasikan tersebut dengan model Universal Quasi-Chemical (UNIQUAC). diawali menentukan fraksi mol campuran tersier butanol isoamil alkohol menggunakan persamaan Hukum Raoult kPa, dimana uap total cairan tergantung komponen murni molnya...

introduction: diabetes is the most common disease related to metabolism disorders with long term complications. it needs lifelong specific self-care, as it causes a promotion in quality of life and decreases disease costs. the health belief model (hbm) is a psychological model that attempts to explain and predict health behaviors. this is done by focusing on the attitudes and beliefs of individ...