Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments

Some manganese phosphates are known as violet pigments. In this study, pigments in which manganese was partially replaced with cobalt and aluminum was replaced with lanthanum and cerium were synthesized with a heating method to obtain pigments with a more reddish color. The obtained samples were eva...

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Main Authors: Saki Aso, Hiroaki Onoda
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/16/11/4132
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author Saki Aso
Hiroaki Onoda
author_facet Saki Aso
Hiroaki Onoda
author_sort Saki Aso
collection DOAJ
description Some manganese phosphates are known as violet pigments. In this study, pigments in which manganese was partially replaced with cobalt and aluminum was replaced with lanthanum and cerium were synthesized with a heating method to obtain pigments with a more reddish color. The obtained samples were evaluated in terms of chemical composition, hue, acid and base resistances, and hiding power. Among the samples examined, the samples obtained in the Co/Mn/La/P system were the most vivid. The brighter and redder samples were obtained by prolonged heating. Furthermore, prolonged heating improved the acid and base resistance of the samples. Finally, the substitution of manganese for cobalt improved the hiding power.
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spelling doaj.art-1cca5d41ca38407e87678d684bebe7242023-11-18T08:10:43ZengMDPI AGMaterials1996-19442023-06-011611413210.3390/ma16114132Synthesis of Cobalt-Substituted Manganese Phosphate Purple PigmentsSaki Aso0Hiroaki Onoda1Department of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto 606-8522, JapanDepartment of Informatics and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto 606-8522, JapanSome manganese phosphates are known as violet pigments. In this study, pigments in which manganese was partially replaced with cobalt and aluminum was replaced with lanthanum and cerium were synthesized with a heating method to obtain pigments with a more reddish color. The obtained samples were evaluated in terms of chemical composition, hue, acid and base resistances, and hiding power. Among the samples examined, the samples obtained in the Co/Mn/La/P system were the most vivid. The brighter and redder samples were obtained by prolonged heating. Furthermore, prolonged heating improved the acid and base resistance of the samples. Finally, the substitution of manganese for cobalt improved the hiding power.https://www.mdpi.com/1996-1944/16/11/4132inorganic pigmentphosphate materialacid and base resistances
spellingShingle Saki Aso
Hiroaki Onoda
Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
Materials
inorganic pigment
phosphate material
acid and base resistances
title Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
title_full Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
title_fullStr Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
title_full_unstemmed Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
title_short Synthesis of Cobalt-Substituted Manganese Phosphate Purple Pigments
title_sort synthesis of cobalt substituted manganese phosphate purple pigments
topic inorganic pigment
phosphate material
acid and base resistances
url https://www.mdpi.com/1996-1944/16/11/4132
work_keys_str_mv AT sakiaso synthesisofcobaltsubstitutedmanganesephosphatepurplepigments
AT hiroakionoda synthesisofcobaltsubstitutedmanganesephosphatepurplepigments