Solid-solute phase equilibria in aqueous solution. VI. Solubilities, complex formation, and ion-interaction parameters for the system Na+−Mg2+−ClO 4 − −CO2−H2O at 25°C

1992 ◽  
Vol 21 (12) ◽  
pp. 1195-1216 ◽  
Author(s):  
E. Königsberger ◽  
P. Schmidt ◽  
H. Gamsjäger
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Phase Equilibria ◽  
Interaction Parameters ◽  
Equilibria In 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.

The Alkali Orthophosphates. Phase Equilibria in Aqueous Solution.

1954 ◽  
Vol 54 (6) ◽  
pp. 891-924 ◽  
Author(s):  
Bernard Wendrow ◽  
Kenneth A. Kobe
Keyword(s):  
Aqueous Solution ◽  
Phase Equilibria ◽  
Equilibria In Aqueous Solution
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