Weak Base Diffusion in Strong Acid Cation Exchangers

2016 ◽  
Vol 34 (5) ◽  
pp. 502-508 ◽  
Author(s):  
O. H. Altshuler ◽  
G. Yu. Shkurenko ◽  
H. N. Altshuler
Keyword(s):  
Strong Acid ◽  
Weak Base ◽  
Cation Exchangers ◽  
Acid Cation

Enhanced defluoridation using reusable strong acid cation exchangers in Al3+ form (SAC-Al) containing hydrated Al(III) oxide nanoparticles

2017 ◽  
Vol 314 ◽  
pp. 192-201 ◽  
Author(s):  
Pornsawai Praipipat ◽  
Medhat Mohamed El-Moselhy ◽  
Kulyakorn Khuanmar ◽  
Panomchai Weerayutsil ◽  
Trung Thanh Nguyen ◽  
...  
Keyword(s):  
Strong Acid ◽  
Oxide Nanoparticles ◽  
Cation Exchangers ◽  
Acid Cation

scholarly journals Leachables from Strong Acid Cation Exchange Resins

1988 ◽  
Vol 37 (12) ◽  
pp. 1114-1121 ◽  
Author(s):  
Wataru AGUI ◽  
Masahito TAKEUCHI ◽  
Masahiko ABE ◽  
Keizo OGINO
Keyword(s):  
Cation Exchange ◽  
Strong Acid ◽  
Cation Exchange Resins ◽  
Acid Cation ◽  
Exchange Resins

scholarly journals Utilization of Extract of Sambang Getih Leaves (Hemigraphis colorata. Hall. F) as a Acid-Base Indicator

2020 ◽  
Vol 9 (1) ◽  
pp. 7-15
Author(s):  
Eksari Ekasari ◽  
Purnama Ningsih
Keyword(s):  
Leaf Extract ◽  
Strong Acid ◽  
Weak Base ◽  
Acid Base ◽  
Strong Base ◽  
Unique Color ◽  
Acid Base Titration ◽  
Naoh Solution ◽  
Ph Range ◽  
Color Pigment

Getih sambang leaves (Hemigraphis Colorata. Hall. F) are plants that have a distinctive and unique color, namely the upper surface of the leaf is green and the bottom of the leaf is burgundy where sambang leaves contain anthocyanin compounds. Anthocyanin is the color pigment in plants that forms the basis of the use of natural indicators. This study aims to prove whether getih cucumber leaves can be used as an acid-base indicator, to determine the type of acid-base titration that is suitable for indicators of getih cucumber leaves, and to find out what the pH-changing color route of getih cucumber leaves is. The method used is extraction, namely maceration. Wee leaves are macerated by using methanol as a solvent for 24 hours. The extract was previously tested using HCl solution and NaOH solution as a test to prove the presence of anthocyanin. The results obtained in this study, getih sambang leaf extract can be used as an indicator of acid base, and also the type of acid-base titration that is suitable for use in the indicator of getih leaf extract extract precisely on the titration of strong-base strong acid, and strong weak base-acid It is best used as a substitute for the phenolphthalein indicator. In titration of strong and weak acids and bases, it is good to be used as a substitute for the indicator of methyl orange. The pH range obtained from the getih sambang leaf extract is pH 4-7 (red-purple).

scholarly journals Adsorption Equilibrium, Kinetics, Thermodynamics and Dynamic Separation of Magnesium and CalciumIons from Industrial Wastewater by New Strong Acid Cation Resin of SPVC

2021 ◽  
Vol 22 (1) ◽  
pp. 127-138
Author(s):  
Dilfuza Nuriddinova
Keyword(s):  
Calcium Ions ◽  
Industrial Wastewater ◽  
Adsorption Equilibrium ◽  
Dynamic Condition ◽  
Research Work ◽  
Strong Acid ◽  
Cation Resin ◽  
Acid Cation ◽  
Kinetics Of ◽  
Separation Results

In the research work, the adsorption equilibrium, kinetics, thermodynamics and dynamic separation of magnesium and calcium ions from industrial wastewater by new strong acid cation resin of SPVC (sulphonated polyvinylchloride) were investigated. The sorption capacity of the studied resin was 3.78 mmol/g and 3.74 mmol/g for magnesium and calcium ions, respectively, according to Langmuir isotherm. It was found that the pseudo−first−order model was better fitted for the adsorption kinetics of magnesium and calcium ions on the resin. The dynamic separation results confirmed that the selected resin effectively separated magnesium and calcium ions from industrial wastewater in the dynamic condition. The change of the standard Gibbs free energy (G) and enthalpy (H), and entropy (S) were calculated. The obtained results confirmed that the adsorption of magnesium and calcium ions on the selected resin is endothermic.

Sign in / Sign up

Export Citation Format

Share Document