STUDIES IN THE NEGATIVELY CHARGED COLLOIDAL SOLUTIONS OF VARIOUS FERRIC SALTS. PART VI. NEGATIVELY CHARGED FERRIC PHOSPHATE SOL

Negatively charged ferric phosphate sols have been prepared and studied The sols were prepared by adding potassium dihydrogen phosphate solution to ferric chloride solution and dispersing the precipitate of ferric phosphate by caustic soda in presence of glucose or glycerine. The glucose-peptised sol has the composition \(8Fe_2O_3.2FePO_4.3H_2O\) and the glycerine-peptised sol, \(5Fe_2O_3.2FePO_4.11H_2O\). Various other characteristics of the sots have been investigated.