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Silicates of green colour ‐ highly dispersed pigments

Silicates of green colour ‐ highly dispersed pigments The technique is presented for obtaining green pigments in the reaction of precipitation from sodium metasilicate solution and from chromium (III) salts. Sulphates and chlorides of chromium (III) as well as chromium sulphates from the tanning industry refuses were applied. The studies were directed to obtain pigments of the following composition: xCr 2 O 3 ySiO 2 zH 2 O. Basic conditions of precipitation process, filtration and drying of silicate pigments were established. Moreover, principal physicochemical parameters of the precipitated pigments were evaluated as well as the size and morphology of pigment particles being estimated by electron microscopy. The performed physicochemical studies aimed also at determining suitability of the pigments as fillers and carriers in oil paints. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Silicates of green colour ‐ highly dispersed pigments

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References (7)

Publisher
Emerald Publishing
Copyright
Copyright © 1998 MCB UP Ltd. All rights reserved.
ISSN
0369-9420
DOI
10.1108/03699429810203374
Publisher site
See Article on Publisher Site

Abstract

The technique is presented for obtaining green pigments in the reaction of precipitation from sodium metasilicate solution and from chromium (III) salts. Sulphates and chlorides of chromium (III) as well as chromium sulphates from the tanning industry refuses were applied. The studies were directed to obtain pigments of the following composition: xCr 2 O 3 ySiO 2 zH 2 O. Basic conditions of precipitation process, filtration and drying of silicate pigments were established. Moreover, principal physicochemical parameters of the precipitated pigments were evaluated as well as the size and morphology of pigment particles being estimated by electron microscopy. The performed physicochemical studies aimed also at determining suitability of the pigments as fillers and carriers in oil paints.

Journal

Pigment & Resin TechnologyEmerald Publishing

Published: Apr 1, 1998

Keywords: Pigments; Precipitation; Silicates

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