Preparation of novel blue phosphate pigments in imitation of turquoise
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerâmica (São Paulo. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000400641 |
Resumo: | Abstract As a novel blue pigment, various hydrated copper aluminum phosphate imitating turquoise, CuAl6(PO4)4(OH)8.4H2O, were prepared by mixing copper nitrate solution, aluminum nitrate solution, phosphoric acid, and sodium hydroxide solution. Samples with similar chemical composition with turquoise were prepared. The obtained powders were evaluated with X-ray diffraction, infrared spectra, ultraviolet-visible reflectance spectra, and L*a*b* color space. Further, other related compositions were also investigated. Samples heated at low temperature were light blue powder. By heating at 700 ºC, the color of materials changed to deep green. Samples with high copper ratio indicated lower L* value and small a* and b* values. The low copper ratio was suitable to obtain light blue and deep green phosphate pigments. |
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USP-29 |
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Cerâmica (São Paulo. Online) |
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Preparation of novel blue phosphate pigments in imitation of turquoisephosphate pigmentturquoisecolorAbstract As a novel blue pigment, various hydrated copper aluminum phosphate imitating turquoise, CuAl6(PO4)4(OH)8.4H2O, were prepared by mixing copper nitrate solution, aluminum nitrate solution, phosphoric acid, and sodium hydroxide solution. Samples with similar chemical composition with turquoise were prepared. The obtained powders were evaluated with X-ray diffraction, infrared spectra, ultraviolet-visible reflectance spectra, and L*a*b* color space. Further, other related compositions were also investigated. Samples heated at low temperature were light blue powder. By heating at 700 ºC, the color of materials changed to deep green. Samples with high copper ratio indicated lower L* value and small a* and b* values. The low copper ratio was suitable to obtain light blue and deep green phosphate pigments.Associação Brasileira de Cerâmica2019-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000400641Cerâmica v.65 n.376 2019reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132019653762807info:eu-repo/semantics/openAccessOnoda,H.Sasaki,R.eng2019-11-11T00:00:00Zoai:scielo:S0366-69132019000400641Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-11-11T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Preparation of novel blue phosphate pigments in imitation of turquoise |
title |
Preparation of novel blue phosphate pigments in imitation of turquoise |
spellingShingle |
Preparation of novel blue phosphate pigments in imitation of turquoise Onoda,H. phosphate pigment turquoise color |
title_short |
Preparation of novel blue phosphate pigments in imitation of turquoise |
title_full |
Preparation of novel blue phosphate pigments in imitation of turquoise |
title_fullStr |
Preparation of novel blue phosphate pigments in imitation of turquoise |
title_full_unstemmed |
Preparation of novel blue phosphate pigments in imitation of turquoise |
title_sort |
Preparation of novel blue phosphate pigments in imitation of turquoise |
author |
Onoda,H. |
author_facet |
Onoda,H. Sasaki,R. |
author_role |
author |
author2 |
Sasaki,R. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Onoda,H. Sasaki,R. |
dc.subject.por.fl_str_mv |
phosphate pigment turquoise color |
topic |
phosphate pigment turquoise color |
description |
Abstract As a novel blue pigment, various hydrated copper aluminum phosphate imitating turquoise, CuAl6(PO4)4(OH)8.4H2O, were prepared by mixing copper nitrate solution, aluminum nitrate solution, phosphoric acid, and sodium hydroxide solution. Samples with similar chemical composition with turquoise were prepared. The obtained powders were evaluated with X-ray diffraction, infrared spectra, ultraviolet-visible reflectance spectra, and L*a*b* color space. Further, other related compositions were also investigated. Samples heated at low temperature were light blue powder. By heating at 700 ºC, the color of materials changed to deep green. Samples with high copper ratio indicated lower L* value and small a* and b* values. The low copper ratio was suitable to obtain light blue and deep green phosphate pigments. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000400641 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000400641 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0366-69132019653762807 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
publisher.none.fl_str_mv |
Associação Brasileira de Cerâmica |
dc.source.none.fl_str_mv |
Cerâmica v.65 n.376 2019 reponame:Cerâmica (São Paulo. Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Cerâmica (São Paulo. Online) |
collection |
Cerâmica (São Paulo. Online) |
repository.name.fl_str_mv |
Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
ceram.abc@gmail.com||ceram.abc@gmail.com |
_version_ |
1748936784616620032 |