The polyphosphates of cadmium, zinc and lead: The character, composition and behaviour of their complexes
- 1 March 1955
- journal article
- research article
- Published by Wiley in Journal of Chemical Technology & Biotechnology
- Vol. 5 (3) , 125-133
- https://doi.org/10.1002/jctb.5010050305
Abstract
This study is the second in a series of investigations of polyphosphates, in which only physical methods are used.The composition of the salts and complexes were studied by heterometric (photometric study of suspensions), pH and conductometric methods. The pyrophosphate anion‐complexes identified are: [MII(P2O7)2]6‐ and [MIIP2O7]2‐, where M represents the metal. The precipitate probably has the structure M3II[MII(P2O7)2]. The tripolyphosphate anion‐complex obtained is: [MIIP3O10]3‐. The precipitate probably has the composition M3II[MIIP3O10]2.The superiority of the heterometric method over the other methods used was demonstrated in this investigation by the greater variety of physical and chemical properties detected.Keywords
This publication has 1 reference indexed in Scilit:
- The polyphosphates of calcium, strontium, barium and magnesium: Their complex character, composition and behaviourJournal of Chemical Technology & Biotechnology, 1954