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  • 1 Silesian University Będzińska 60 41-200 Sosnowiec Poland Będzińska 60 41-200 Sosnowiec Poland
  • | 2 Polish Geological Institute Rakowiecka 4 00-975 Warsaw Poland Rakowiecka 4 00-975 Warsaw Poland
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Abstract  

The paper discusses the influence of variable experimental conditions on the thermal decomposition of carbonate minerals. This study was based on Ca-Mg carbonate minerals from Upper Permian dolomite and zuber rocks as well as on calcite and magnesite samples from geological formations of various ages. X-ray diffraction was applied for comparative purposes. Experimental conditions were chosen based on the authors' experience related to studies of both fossil and contemporary organic matters as well as various materials of geological provenience. Since the main factor in thermal analysis of carbonates is the appropriate choice of experimental conditions for outflow of gaseous reaction products, the thermal analyses were carried out with various sample holders, various sample masses and varied thickness of sample layers in holders, using also a dynamic atmosphere. The results obtained indicated that different experimental conditions produced extremely different TA data, e.g. the traditional analysis in crucible sample holders with a thick sample layer (great sample mass) showed well expressed double thermal effects of dolomite. For thin sample layer both peaks of thermal decomposition of carbonate components occurred in very close or almost identical temperatures. The presented results enabled to devise a detailed procedure referring to the choice of experimental conditions and interpretation possibilities as well as to recommend specific TA instruments design and sample holders types.

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  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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