Acta Phys. -Chim. Sin. ›› 1990, Vol. 6 ›› Issue (03): 350-353.doi: 10.3866/PKU.WHXB19900319

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A Study of the Stability of SiO2 Colloidal Dispersion

Li Ning; Zheng Zhong   

  1. Department of Chemistry, South China University of Technology, Guangzhou
  • Received:1988-11-11 Revised:1989-03-22 Published:1990-06-15
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Abstract:

The theory of the stability of SiO_2 colloid in different electrolyte (NaCl) concen-tration was studied. It was found that the stability of SiO_2 colloidal dispersion was lower with the increase of eletrolyte (NaCl) concentration and the logw-logc relation was straight line. The potential curves in the system were constructed. The stability of SiO_2 colloidal dispersion correspond with the DLVO theory.