Characterization of the Snail’s Carapace Collected at Coast of Brazilian’s State of Paraíba

Abstract:

Calcium carbonate (CaCO3) is a ceramic of strong economic potential, given the versatility of its application in industry in many different areas. Protective shells of marine snails of the Brazilian coast were analyzed in this study, to verify the content of calcium carbonate available in this type of material. The samples were collected at Bessa´s Beach located in the João Pessoa’ coast Capital of Paraíba state, northern Brazil. The collection occurred during the month of February 2008; the sample was processed into powder and it was examined by X-ray Fluorescence (XRF), X-ray diffraction (XRD) and Infrared Spectroscopy with Fourier Trasformating (FTIR). The material was also submitted to heat treatment at 110°C and characterized by same techniques. The results confirmed the presence of a high content of calcium carbonate in the samples (over 95%,) which has not changed with the heat treatment used. It was presents the morphologies calcite and aragonite with prevalence of the second, both showing high levels of crystallinity. From the results obtained, calcium carbonate of the coast Paraíba has a potential application like bioceramic.

• Periodical: Key Engineering Materials (Volumes 396-398)
• Pages: 141-144
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.396-398.141
• Online since: October 2008
• Authors: R.S.C. Lima, Marcus Vinícius Lia Fook, Thiago Bizerra Fideles, A.C.B.M. Fook, Sara Verusca de Oliveira, W.P.F. Barbosa
• Keywords: Calcium Carbonate, Marine’s Carapace, Snail’s Carapace

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