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Capturing an amorphous BaSO4 intermediate precursor to barite

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Abstract

The work presented here investigates the early stages of barium sulfate crystallization from aqueous solutions. By monitoring free-barium activity during the crystallization, we identified a metastable BaSO4 phase that precedes barite formation. Ex situ investigations provide direct, unambiguous experimental evidence of an amorphous BaSO4 phase in an additive-free scenario.

Graphical abstract: Capturing an amorphous BaSO4 intermediate precursor to barite

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Article information


Submitted
02 Oct 2019
Accepted
07 Jan 2020
First published
13 Jan 2020

CrystEngComm, 2020, Advance Article
Article type
Communication

Capturing an amorphous BaSO4 intermediate precursor to barite

C. Ruiz-Agudo, D. McDonogh, J. T. Avaro, D. J. Schupp and D. Gebauer, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01555H

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