A Thermodynamic Framework for Determination of Gas Hydrate Stability Conditions and Water Activity in Ionic Liquid Aqueous Solution

2021 ◽  
pp. 118358
Author(s):  
Ali Rasoolzadeh ◽  
Ali Bakhtyari ◽  
Mohammad Reza Sedghamiz ◽  
Jafar Javanmardi ◽  
Khashayar Nasrifar ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Water Activity ◽  
Gas Hydrate ◽  
Stability Conditions ◽  
Thermodynamic Framework ◽  
Hydrate Stability

scholarly journals FLUORESCENCE ENHANCEMENT OF Al3+– SODIUM MORIN–5–SULFONATE COMPLEX BY IMIDAZOLIUM IONIC LIQUID AND ITS APPLICATION IN DETERMINATION OF Al3+ IONS IN AN AQUEOUS SOLUTION

2019 ◽  
Vol 81 (2) ◽  
Author(s):  
Syaza Atikah Nizar ◽  
Nurul Syamimi Abdul Satar ◽  
Shaik Azri Shaik Amar ◽  
Fatin Hazirah Abdullah ◽  
Faizatul Shimal Mehamod ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Acetic Acid ◽  
Ternary Complex ◽  
Fluorescence Enhancement ◽  
Calibration Graph ◽  
Fluorescence Signal ◽  
Binary Complex ◽  
Imidazolium Ionic Liquid

This study describes the preparation of sodium morin–5–sulfonate (NaMSA) as a new reagent for the determination of aluminium(III) (Al3+) ions based on the formation of a ternary complex. The complex consists of Al3+, NaMSA, and 1–Butyl–3–methylimidazolium hexafluorophosphate (BMIM–PF6). It was found that this method was sensitive compared to the binary complex of Al3+ and NaMSA. The ternary complex was excited at 420 nm, and the fluorescence signal was measured at 518 nm. Maximum fluorescence signal produced at pH 5.0 (acetic acid–acetate buffer), with 0.02% v/v BMIM–PF6 and 1.0 × 10-4 molL-1 of NaMSA. The calibration graph in linear up to 10 mgL-1 with the calculated detection limit of 0.017 mgL-1. Effect of foreign ions towards the ternary complex was also studied. Finally, the method was applied in the determination of Al3+ ions in water samples, and satisfactory results were obtained.

Experimental and DFT Approach on the Determination of Natural Gas Hydrate Equilibrium with the Use of Excess N2 and Choline Chloride Ionic Liquid as an Inhibitor

2016 ◽  
Vol 30 (4) ◽  
pp. 2821-2832 ◽  
Author(s):  
Mohammad Tariq ◽  
Mert Atilhan ◽  
Majeda Khraisheh ◽  
Enas Othman ◽  
Marcelo Castier ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Choline Chloride ◽  
Natural Gas Hydrate

Determination of spices in food samples by ionic liquid aqueous solution extraction and ion chromatography

2014 ◽  
Vol 25 (3) ◽  
pp. 465-468 ◽  
Author(s):  
Hai-Bao Zhu ◽  
Yun-Chang Fan ◽  
Ya-Ling Qian ◽  
Hong-Fang Tang ◽  
Zheng Ruan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Ion Chromatography ◽  
Food Samples
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