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Synthesis and characterization of inorganic colour pigment from spent acid

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dc.contributor.authorWoon H.S.en_US
dc.contributor.authorNicklaane K.en_US
dc.contributor.authorEwe L.S.en_US
dc.contributor.authorLim K.P.en_US
dc.contributor.authorIsmail I.en_US
dc.contributor.authorTan C.Y.en_US
dc.contributor.authorid56287541700en_US
dc.contributor.authorid57209318423en_US
dc.contributor.authorid58032789200en_US
dc.contributor.authorid24776093100en_US
dc.contributor.authorid55123311400en_US
dc.contributor.authorid16029485400en_US
dc.date.accessioned2023-05-29T06:50:07Z
dc.date.available2023-05-29T06:50:07Z
dc.date.issued2018
dc.description.abstractThis paper proposes a new method of recycling spent acid from local cold rolling industry into iron oxide pigment that to be applied to the roof tiles. Pickling is a process in which a hot-rolled steel that has rusty scale is dipped into hydrochloric acid prior to further processing. The waste acid contains valuable elements that can be synthesized into iron oxide pigment materials. Through neutralization between a waste acid and three different alkalis namely sodium hydroxide, potassium hydroxide and calcium hydroxide, sludge is formed and further calcined into iron oxide pigment. Colour values include L?ab? were measured using chromameter. X-ray diffraction (XRD) and scanning electron microscopy (SEM) revealed that sodium hydroxide and potassium hydroxide are the suitable alkalis in this study. Calcination at 600�C produced red iron oxide pigment materials with good colour properties. � 2018 Author(s).en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo20030
dc.identifier.doi10.1063/1.5066986
dc.identifier.scopus2-s2.0-85067365782
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85067365782&doi=10.1063%2f1.5066986&partnerID=40&md5=51bab9932c46ea7ed4df3664e5388c8f
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/23532
dc.identifier.volume2031
dc.publisherAmerican Institute of Physics Inc.en_US
dc.relation.ispartofAll Open Access, Bronze
dc.sourceScopus
dc.sourcetitleAIP Conference Proceedings
dc.titleSynthesis and characterization of inorganic colour pigment from spent aciden_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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