Effects of feed-side solute polarization on pervaporative stripping of volatile organic solutes from dilute aqueous solution: a generalized analytical treatment

1995 ◽  
Vol 101 (1-2) ◽  
pp. 117-126 ◽  
Author(s):  
Alan S. Michaels
Keyword(s):  
Aqueous Solution ◽  
Organic Solutes ◽  
Analytical Treatment ◽  
Volatile Organic ◽  
Dilute Aqueous Solution ◽  
Solute Polarization

scholarly journals Freeze concentration of dilute aqueous solution

1968 ◽  
Vol 17 (3) ◽  
pp. 354-355 ◽  
Author(s):  
Atsushi MIZUIKE ◽  
Shigeki KANO
Keyword(s):  
Aqueous Solution ◽  
Freeze Concentration ◽  
Dilute Aqueous Solution

Schiff base equilibria. II. Beryllium complexes of N-n-butylsalicylideneimine and the hydrolysis of the Be2+ ion

1965 ◽  
Vol 18 (5) ◽  
pp. 651 ◽  
Author(s):  
RW Green ◽  
PW Alexander
Keyword(s):  
Aqueous Solution ◽  
Schiff Base ◽  
Complex Formation ◽  
Distribution Coefficient ◽  
Dilute Aqueous Solution ◽  
The Stability ◽  
Ph Range ◽  
Hydrolysis Of ◽  
Beryllium Complexes ◽  
Equilibria In Aqueous Solution

The Schiff base, N-n-butylsalicylideneimine, extracts more than 99.8% beryllium into toluene from dilute aqueous solution. The distribution of beryllium has been studied in the pH range 5-13 and is discussed in terms of the several complex equilibria in aqueous solution. The stability constants of the complexes formed between beryllium and the Schiff base are log β1 11.1 and log β2 20.4, and the distribution coefficient of the bis complex is 550. Over most of the pH range, hydrolysis of the Be2+ ion competes with complex formation and provides a means of measuring the hydrolysis constants. They are for the reactions: Be(H2O)42+ ↔ 2H+ + Be(H2O)2(OH)2, log*β2 - 13.65; Be(H2O)42+ ↔ 3H+ + Be(H2O)(OH)3-, log*β3 -24.11.

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