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Cosmetics 2014, 1(4), 222-231; doi:10.3390/cosmetics1040222

Influence of Temperature and Ultrasonic Treatment on Preparation of Titanium Phosphates and Their Powder Properties

Department of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto 606-8522, Japan
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Received: 3 May 2014 / Revised: 31 July 2014 / Accepted: 28 September 2014 / Published: 8 October 2014
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Abstract

Catalytically active titanium dioxide is conventionally used as a white pigment for cosmetics, but undesirably induces a certain degree of decomposition of sebum on the skin on exposure to ultraviolet radiation in sunlight. In this work, titanium phosphates were prepared as a novel white pigment for cosmetics using titanium sulfate and phosphoric acid at various temperatures, with/without ultrasonic treatment. The chemical composition, powder properties, photocatalytic activity, color phase, moisture retention, and smoothness of the phosphates were evaluated. These titanium phosphates had less photocatalytic activity than titanium dioxide, which should be beneficial for protecting sebum on the skin. Samples prepared with ultrasonic treatment had lower visible light absorption than those not subjected to ultrasonication. The sample prepared at 40 °C with ultrasonic treatment had higher moisture retention capacity than those prepared under other conditions. Samples prepared at 40 °C had lower slipping resistance than samples prepared at 7 °C. View Full-Text
Keywords: white pigment; titanium phosphates; photocatalytic activity; smoothness white pigment; titanium phosphates; photocatalytic activity; smoothness
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Onoda, H.; Fujikado, S. Influence of Temperature and Ultrasonic Treatment on Preparation of Titanium Phosphates and Their Powder Properties. Cosmetics 2014, 1, 222-231.

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