화학공학소재연구정보센터
Journal of Colloid and Interface Science, Vol.194, No.1, 260-262, 1997
Coagulation of Colloidal Silica by Alkaline Cations - Surface Dehydration or Interparticle Bridging
Particle dehydration and interparticle binding have been advocated to explain the coagulation of silica sols by alkaline salts. Those approaches are reexamined in the light of experimental data that have recently been published. It is proposed that coagulation of silica by alkaline cations, when it occurs, is caused by interparticle hydroxo bridging.