A method for determination of surface area of dry extenders & pigments powders by the Ethylene Glycol Monoethyl Ether (EGME)

摘要

The test procedure is described for the determination of SSA of extenders, white pigments, colored pigments and organic pigments. The test involves saturating a pigment sample with Ethylene glycol monoethyl ether (EGME) and then removing the excess EGME in a vacuum desiccator. It is assumed that the monomolecular layer of EGME is formed on the pigment surface. This monomolecular layer EGME formed on the pigment surface is used to compute the specific surface area of the pigment. This proposed method, is relatively simple to perform, and allows for rapid determination of SSA of pigment. This procedure is an extension of the test procedure mainly developed by Amy B. Cerato and Alan J. Luteneggerl for the determination of specific surface area (SSA) of soil to pigments.