Journal article

Effects of low-melting temperature salt (Na₂SO₄) addition on the phase transformation, crystal growth, and chroma of titanium dioxide pigments

Y Wang, KA Mumford, S Shen, Y Li

Powder Technology | Elsevier | Published : 2015

Abstract

The effects of the presence of a low-melting temperature inorganic salt (sodium sulfate) on the phase transformation, particle morphology and chroma of titanium dioxide white pigment were investigated. Powders were characterized by X-ray powder diffraction, scanning electronic microscopy, ultraviolet-visible-near infrared spectroscopy, infrared spectra and chroma measurements. For titanium dioxide pigments containing a lower salt content, the anatase-rutile phase transformation and crystal growth of titanium dioxide were inhibited. On the other hand, the anatase-rutile phase transformation and crystal growth of titanium dioxide was accelerated by the addition of higher salt concentrations. T..

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University of Melbourne Researchers

Grants

Awarded by Natural Science Foundation of Hebei Province


Awarded by National Natural Science Foundation of China


Funding Acknowledgements

This work was supported by the Natural Science Foundation of Hebei Province (B2013208155) and National Natural Science Foundation of China (No. 60578041).