STUDIES ON COMPLEXATION IN SOLUTION WITH A PAPER ELECTROPHORETIC TECHNIQUE [THE SYSTEM MERCURY(II)/NICKEL(II)/ LEAD(II) - SARCOSINE]
Complexation reactions of sarcosine with mercury(II), nickel(II) and lead(II) have been studied in the solution phase using a paper ionophoretic technique. This method is based on movement of a spot of metal ion in an electric field at various pHs of background electrolyte. A graph of pH versus mobi...
Guardado en:
| Autor principal: | |
|---|---|
| Lenguaje: | English |
| Publicado: |
Sociedad Chilena de Química
2012
|
| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072012000100009 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | Complexation reactions of sarcosine with mercury(II), nickel(II) and lead(II) have been studied in the solution phase using a paper ionophoretic technique. This method is based on movement of a spot of metal ion in an electric field at various pHs of background electrolyte. A graph of pH versus mobility was used to obtain information on the metal complexes and to calculate stability constants. The stability constants of the ML+ and ML2 complexes of mercury(II), nickel(II) and lead(II) - sarcosine have been found to be (7.95 ± 0.02; 6.79 ± 0.06), (6.69 ± 0.01; 5.29 ± 0.04) and (4.34 ± 0.02; 2.69 ± 0.07) (logarithm stability constant values), respectively at a temperature of 35 ° C and ionic strength of 0.1 M. |
|---|