Thermal decomposition of calcium propionate: films and powders

• Published in: Journal of thermal analysis and calorimetry Vol. 148; no. 23; pp. 13039 - 13049
• Main Authors: Zaidi, Sihem, Sanchez-Rodriguez, Daniel, Farjas, Jordi, Mohamed, Dammak, Roura-Grabulosa, Pere
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01-12-2023; Springer Nature B.V
• Subjects: Analytical Chemistry; Calcium; Chemistry; Chemistry and Materials Science; Gas analysis; Infrared analysis; Inorganic Chemistry; Measurement Science and Instrumentation; Physical Chemistry; Polymer Sciences; Thermal decomposition; Thermal runaway; Thermogravimetry; Volatile compounds; Food preservatives; TGA-EGA; Thermal decomposition; Calcium propionate
• ISSN: 1388-6150; 1588-2926
• DOI: 10.1007/s10973-023-12177-2

The thermal decomposition of calcium propionate, in inert and oxidative atmospheres, has been investigated by thermogravimetry combined with infrared evolved gas analysis; the main volatiles formed during thermal decomposition have been identified. The intermediate and final products have been characterized by infrared spectroscopy, x-ray diffraction, elemental analysis and scanning electron microscopy. The different mechanisms involved in thermal decomposition are discussed as a function of atmosphere and sample structure. The kinetics of the decomposition and the ability of powders to undergo a thermal runaway are also investigated.