Open AccessTHE EFFECT OF PRECIPITATION CONDITIONS ON THE FLOW PROPERTIES OF SILICA DISPERSIONS
Author(s) -
A. F. Sirianni,
I. E. Puddington
Publication year - 1955
Publication title -
canadian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.323
H-Index - 68
eISSN - 1480-3291
pISSN - 0008-4042
DOI - 10.1139/v55-045
Subject(s) - chemistry , sodium silicate , suspension (topology) , precipitation , chemical engineering , yield (engineering) , rheology , silicate , sodium , chromatography , organic chemistry , thermodynamics , physics , mathematics , homotopy , meteorology , pure mathematics , engineering
The pH of the solutions in which silica is precipitated from sodium silicate has a marked effect on the flow properties of pastes prepared by subsequently dispersing the silica in liquid hydrocarbons. The yield value of this non-Newtonian suspension exhibits a pronounced maximum when silica precipitated at about pH 5 is used. An explanation based on the properties of the solid–liquid interface is proposed.