Issue 19, 2006
From the journal:

Physical Chemistry Chemical Physics

The crystallization kinetics and morphology of nitric acid trihydrate

Hinrich Grothe,*a   Heinz Tizek,†a   Debbie Wallerb  and  Debbie J. Stokesb  

* Corresponding authors

a Vienna University of Technology, Institute of Materials Chemistry, Veterinärplatz 1/GA, Vienna, Austria
E-mail: grothe@tuwien.ac.at
Fax: +431 25077 3890
Tel: +431 25077 3809

b Sector of Biological and Soft Systems, University of Cambridge, Department of Physics, Cavendish Laboratory, JJ Thomson Avenue, Cambridge, UK
E-mail: djs49@phy.cam.ac.uk
Fax: +44 1223 337 000
Tel: +44 1223 765 108

Abstract

Crystallization kinetics of stable and metastable nitric acid trihydrate (NAT) were investigated by time dependent X-ray powder diffraction (XRD) measurements. Kinetic conversion curves were evaluated adopting the Avrami model. The growth and morphology of the respective crystallites were monitored in situ on the cryo-stage of an environmental scanning electron microscope (ESEM) under a partial pressure of nitrogen gas (0.3 Torr, 40 Pa). The results show a close relationship between the presence of ice in the sample and the crystallization mechanism of NAT, which results in different shapes and sizes of NAT crystal particles.

Graphical abstract: The crystallization kinetics and morphology of nitric acid trihydrate

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Article information

DOI
https://doi.org/10.1039/B601514J
Article type
Paper
Submitted
31 Jan 2006
Accepted
13 Mar 2006
First published
05 Apr 2006

Phys. Chem. Chem. Phys., 2006,8, 2232-2239

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The crystallization kinetics and morphology of nitric acid trihydrate

H. Grothe, H. Tizek, D. Waller and D. J. Stokes, Phys. Chem. Chem. Phys., 2006, 8, 2232 DOI: 10.1039/B601514J

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