Adsorption studies of fluoride on weak base anion exchangers and surface modified strong acid cation exchangers in aqueous medium

2020 ◽  
Vol 204 ◽  
pp. 356-365
Author(s):  
Janhavi M. Karekar ◽  
Ramesh T. Katamble ◽  
Sanjaykumar V. Divekar
Keyword(s):  
Aqueous Medium ◽  
Strong Acid ◽  
Weak Base ◽  
Anion Exchangers ◽  
Adsorption Studies ◽  
Cation Exchangers ◽  
Acid Cation ◽  
Surface Modified

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

Cr(VI) RETENTION CAPACITY AND SELECTIVITY OF SOME STRONG AND WEAK BASE ANION EXCHANGERS

2004 ◽  
Vol 3 (3) ◽  
pp. 221-230 ◽  
Author(s):  
Ion Untea ◽  
Cristina Orbeci ◽  
Elena Tudorache ◽  
Violeta Neagu
Keyword(s):  
Weak Base ◽  
Anion Exchangers ◽  
Retention Capacity

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).

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