Production manner null of high purity hydrophobic organicity solvent distributed silica

摘要

PROBLEM TO BE SOLVED: To provide a high purity silica sol dispersed in a hydrophobic organic solvent stably dispersed in a hydrophobic organic solvent at a high concentration as a raw material for an electronic material, a film material, a polishing agent for an organic surface and the like and its manufacturing method.;SOLUTION: The high purity silica sol dispersed in the hydrophobic organic solvent wherein fine silica particles are dispersed in the hydrophobic organic solvent is characterized by having a particle diameter of the silica fine particles of 500 nm or less, containing metallic impurities of 1.0 ppm or less, and being stable for a long term even if containing the fine silica particles of more than 20 wt.%.;COPYRIGHT: (C)2006,JPO&NCIPI