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In Situ Observation...
In Situ Observation of Epitaxial Growth during Evaporative Simultaneous Crystallization from Aqueous Electrolytes in Droplets
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- Penha, Frederico M. (författare)
- KTH,Resursåtervinning,Department of Chemical Engineering, Polytechnic School, University of São Paulo, São Paulo 3550308, Brazil
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Andrade, Fábio R. D. (författare)
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Lanzotti, Amanda S. (författare)
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Moreira Junior, Paulo F. (författare)
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Zago, Gustavo P. (författare)
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Seckler, Marcelo M. (författare)
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(creator_code:org_t)
- 2021-09-15
- 2021
- Engelska.
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Ingår i: Crystals. - : MDPI AG. - 2073-4352. ; 11:9, s. 1122-1122
- Relaterad länk:
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https://doi.org/10.3...
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https://kth.diva-por... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- In this study, crystallization phenomena were investigated by real-time in situ observation of seeded droplets under evaporation using a self-developed hot-stage platform. Ternary solutions at eutonic conditions at 25 °C were investigated for the following systems: NaCl–KCl–H2O, NaCl–CaSO4–H2O, and NaCl–Na2SO4–H2O. Evidence of epitaxial growth was found for aqueous NaCl–KCl and aqueous NaCl–Na2SO4. Sodium chloride nucleated and grew epitaxially upon the other substrates in a larger proportion compared with the inverse. This observation could be related to the higher solubility, and consequently higher residual supersaturation of NaCl regarding the other components. Hopper-like NaCl crystals developed in almost all systems. The results may help devise strategies to control particle morphologies and purity in industrial crystallization from complex systems.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- Inorganic Chemistry
- Condensed Matter Physics
- General Materials Science
- General Chemical Engineering
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