Design, Synthesis, and Application of Colored Cobalt Pigments (Pink, Blue, Green)

Anaissi, Fauze Jacó; Horsth, Dienifer F. L.; Dalastra, Jaqueline; Primo, Júlia O.; Borth, Ketlyn Wolfart; Rocha, Maria Lidia M.; Balaba, Nayara

doi:10.21577/0103-5053.20200078

Cited by 2 publications

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“…This is in agreement with the results that malayaite red ceramic pigments have excellent stability and coloring power in glazes. 15,17 Because of this merit, the malayaite red ceramic pigments can be used not only in glazes and billets, [42][43][44] but also in many other fields.…”

Section: F I G U R E 3 (A-d)ultraviolet-visible (Uv-vis) Absorption S...mentioning

confidence: 99%

A formulation design and preparation of gold‐free purple of Cassius based on the doped malayaite

Jiang

et al. 2023

Int J Applied Ceramic Tech

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Malayaite (CaSnSiO 5 ) doped with Cr may be used as a cheap gold-free purple red pigment to substitute the purple of Cassius. Different molar ratios of Ca/Sn malayaite doped with Cr were prepared and various characrizations were employed. The results indicate that the pigment is composed of CaSnSiO 5 and SnO 2 when the molar ratio of Ca/Sn is 0.8, and the color is close to agate red color. When the molar ratio of Ca/Sn is 1.25, the phases CaSnSiO 5 , SnO 2 , and Ca 3 SnSi 2 O 9 exist simultaneously, while the color is yellow or yellowish colors. Excessive Ca(II) increases the normal calcination temperature of pigment, from 1080 • C to 1130 • C. The distribution of chromium ions on the sample surface varies greatly with the change in Ca/Sn molar ratio. The theoretical formulation was obtained based on the stoichiometric formula of CaCr x Sn 1-x SiO 5 by using response surface methodology (RSM). According to the RSM model, the relationship between the molar ratio of Cr/Sn/Ca and the color property was established. The desired pigment formulation (rendering agate red) color is that the molar ratio of Cr/Sn/Ca is 0.010:1.003:0.800. The accuracy of the models was confirmed with analysis of variance, the simulation results were verified again by experiments.

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Section: F I G U R E 3 (A-d)ultraviolet-visible (Uv-vis) Absorption S...mentioning

confidence: 99%

A formulation design and preparation of gold‐free purple of Cassius based on the doped malayaite

Jiang

et al. 2023

Int J Applied Ceramic Tech

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“…There are numerous applications for cobalt in the metallurgical, petroleum, chemical, electronic, pharmaceutical, and medical industries because of its unique chemical and physical properties. Cobalt is commonly used in the metallurgical industry to produce alloy metals for gas turbines, nuclear power plants, engine vanes, automotive engines, engine valves, aviation fuel nozzles, and cutting wear-resistant tools [3]- [5], magnetic materials such as Alnico and Samarium cobalt [6]- [8], the catalyst for sulfur removal and oil hydrogenation processes [9]- [11], drying materials for paint, promoters for the polymerization process [12], pigment materials [13]- [14], raw materials for rechargeable batteries [15], Fuel Cell Cathode materials [16], and implant materials for heap joints, dentist, cardiovascular stent [17]- [21]. Cobalt has a broad spectrum application in many industries; therefore cobalt consumption in the world tends to increase [22].…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

Subagja

Rohman

Milandia

et al. 2023

metal.

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In present study, a solvent extraction experiment has been done to separate cobalt from the nickel sulfate solution by using 2-ethythexyl phosponic acid mono-2-ethylhexyl ester (PC-88A) as extractant. The experiment was carried out on a laboratory scale by using a separating funnel to extract cobalt from the nickel sulfate solution with PC88A. The mixed solution was shake in separating funnel for a specified period of time, and after the solvent extraction experiment was finished the organic phase PC88 was separated from the nickel sulfate solution by decantation. The nickel and cobalt content in the aqueous nickel sulfate solution were then analyzed using Atomic absorption spectrophotometry (AAS). In this experiment, the variable for experiments were covering solution pH from 2 to 6, shaking time from 30 minutes to 120 minutes, shaking speed from 20 revolutions per minute (rpm) to 80 rpm, and the volumeratio of aqueous to organic phase (A:O ratio) was from 1:1 to 1:4. The effects that experimental variables to the cobalt extraction were observed in this experiment. The result of experiment at room temperature, solution pH 5, shaking speed 60 rpm, shaking time 90 minutes, A:O ratio 1:4 and concentration of PC- 88A 40% show 97.21% of cobalt can be extracted by PC-88A from nickel sulfate solution, thererfore it was necessary to conduct two stage extraction process to extract 100% of the cobalt from the nickel sulfate solution.

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Design, Synthesis, and Application of Colored Cobalt Pigments (Pink, Blue, Green)

Cited by 2 publications

References 0 publications

A formulation design and preparation of gold‐free purple of Cassius based on the doped malayaite

A formulation design and preparation of gold‐free purple of Cassius based on the doped malayaite

A Preliminary Study of Cobalt Solvent Extraction from Nickel Sulphate Solution using Organic Extractant-PC-88A

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