Crystallization of monohydrocalcite in a silica-rich alkaline solution

Gan Zhang, José Manuel Delgado-López, Duane Choquesillo-Lazarte, Juan Manuel García-Ruiz

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Monohydrocalcite was crystallized in a silica-rich alkaline solution at room temperature using the counter diffusion method (CDM) in the absence of magnesium, by the reaction of calcium chloride and sodium carbonate. Field emission scanning electron microscopy observations showed monohydrocalcite crystals that were hundreds of micrometers in size exhibiting a unique multi-layered structure. X-ray diffraction and Raman microspectroscopy characterizations demonstrated that monohydrocalcite remained in a stable phase for a number of months. After monitoring the crystallization process by in situ Raman microspectroscopy, it was found that monohydrocalcite was the initial phase, with no phase transformation occurring during the crystal growth. This work demonstrates that silica plays a key role in the formation and stabilization of the monohydrocalcite phase.

Original languageEnglish
Pages (from-to)6526-6532
Number of pages7
Issue number33
StatePublished - 7 Sep 2013
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry (all)
  • Materials Science (all)
  • Condensed Matter Physics


Dive into the research topics of 'Crystallization of monohydrocalcite in a silica-rich alkaline solution'. Together they form a unique fingerprint.

Cite this