Sodium sulfate heptahydrate I: The growth of single crystals

Hannelore Derluyn, Tamerlan A. Saidov, Rosa M. Espinosa-Marzal, Leo Pel, George W. Scherer

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Sodium sulfate is one of the most damaging salts for porous building materials. In our quest to increase the durability of civil structures and cultural heritage we need to understand its crystallization behavior. In this paper we investigate the cooling-induced growth of the metastable heptahydrate crystal phase by combining nuclear magnetic resonance, for non-destructive measurement of the concentration, with time-lapse microscopy, to visualize the crystal growth. The growth rate is found to be controlled by interface attachment kinetics. The kinetic growth parameter Gk ranges from 0.001 to 0.007 mm/s for single crystals in a temperature range of 4.813 °C.

Original languageEnglish (US)
Pages (from-to)44-51
Number of pages8
JournalJournal of Crystal Growth
Issue number1
StatePublished - Aug 15 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry


  • A1. Growth models
  • A1. Supersaturated solutions
  • A2. Growth from solutions
  • A2. Natural crystal growth
  • B1. Salts


Dive into the research topics of 'Sodium sulfate heptahydrate I: The growth of single crystals'. Together they form a unique fingerprint.

Cite this