Identification of crystallization forms of CaCO3 with FTIR spectroscopy
Identifikacija kristalizacijskih oblik CaCO3 s FTIR spektroskopijo

english

1999

volume 33, issue 6

Inštitut za kovinske materiale in tehnologije

It has been established that nucelation and crystallization of calcium carbonate in hard water can be influenced by magnetic fields. In this study NGIA (Near Grazing Incidence Angle) reflectance FTIR (Fourier Transformed Infrared) spectroscopy has been used for the identification and characterization of the crystallization forms of calcium carbonate influenced by magnetic field treatment. Spectra obtained from the thin films of calcium carbonate crystalls, grown from haard water on different substrates, have been studied. The influence of impurity ions, which are usually present in ordinary tape water (such as iron, copper and zinc) and appear to favor the formation of arragonite rather than calcite crystalls after the magnetic treatment, was confirmed. The morphological differences between magnetically treated and untreated samples, i.e. crystalls grown from this samples, were investigated by means of scanning electron microscopy (SEM).

16.09.2009