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Updated: Mar 7, 2026
Calcium Carbonate Formation in the Presence of Biopolymeric Additives
Published on: May 14, 2019
Synthesis and structure of synthetically pure and deuterated amorphous (basic) calcium carbonates
Hsiu-Wen Wang1, Luke L Daemen2, Michael C Cheshire3
1Shull Wollan Center, The University of Tennessee/Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. wangh3@ornl.gov.
Abstract:
It is generally believed that H2O and OH- are the key species stabilizing and controlling amorphous calcium carbonate "polyamorph" forms, and may in turn control the ultimate crystallization products during synthesis and in natural systems. Yet, the locations and hydrogen-bonding network of these species in ACC have never been measured directly using neutron diffraction. We report a synthesis route that overcomes the existing challenges with respect to yield quantities and deuteration, both of which are critically necessary for high quality neutron studies.
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