Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment
Abstract
During mechanical activation, the energy of treated material is raised to a higher level that can lead to the chemical transformation of the activated material. This is the point that should be considered as a phenomenon of the mechanochemical transformations appearing as a result of mechanical activation. Sodium carbonate as a substance that is often subjected to mechanochemical synthesis was mechanically activated in this study. The subject was the monitoring of changes in the physico-chemical characteristics of sodium carbonate after exposure to different degrees of activation time within the range of 1-28 minutes. After activation, the samples were deposited in three environments, CO2, air, and vacuum, at room temperature, in a period of 64 days. The mass changes occurring during the treatment were measured depending on the processing environment. Increasing the mass was evident and was attributed to the chemisorption of moisture and carbon dioxide present in the air as a consequen...ce of the sodium carbonate activation. The methods also used were calcimetric chemical analysis and X-ray structural analysis. According to obtained results, it was found that activated sodium carbonate is mass-transformed into sodium bicarbonate, whereby these changes are functionally dependent on activation time and the processing environment.
Keywords:
Sodium carbonate / Mechanochemical transformation / Mechanical activationSource:
Science of Sintering, 2020, 52, 4, 433-444Publisher:
- Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
DOI: 10.2298/SOS2004433D
ISSN: 0350-820X
WoS: 000600505000005
Scopus: 2-s2.0-85098626054
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Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - JOUR AU - Đorđević, Nataša AU - Mihajlović, Slavica AU - Patarić, Aleksandra PY - 2020 UR - https://ritnms.itnms.ac.rs/handle/123456789/551 AB - During mechanical activation, the energy of treated material is raised to a higher level that can lead to the chemical transformation of the activated material. This is the point that should be considered as a phenomenon of the mechanochemical transformations appearing as a result of mechanical activation. Sodium carbonate as a substance that is often subjected to mechanochemical synthesis was mechanically activated in this study. The subject was the monitoring of changes in the physico-chemical characteristics of sodium carbonate after exposure to different degrees of activation time within the range of 1-28 minutes. After activation, the samples were deposited in three environments, CO2, air, and vacuum, at room temperature, in a period of 64 days. The mass changes occurring during the treatment were measured depending on the processing environment. Increasing the mass was evident and was attributed to the chemisorption of moisture and carbon dioxide present in the air as a consequence of the sodium carbonate activation. The methods also used were calcimetric chemical analysis and X-ray structural analysis. According to obtained results, it was found that activated sodium carbonate is mass-transformed into sodium bicarbonate, whereby these changes are functionally dependent on activation time and the processing environment. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment EP - 444 IS - 4 SP - 433 VL - 52 DO - 10.2298/SOS2004433D UR - conv_876 ER -
@article{ author = "Đorđević, Nataša and Mihajlović, Slavica and Patarić, Aleksandra", year = "2020", abstract = "During mechanical activation, the energy of treated material is raised to a higher level that can lead to the chemical transformation of the activated material. This is the point that should be considered as a phenomenon of the mechanochemical transformations appearing as a result of mechanical activation. Sodium carbonate as a substance that is often subjected to mechanochemical synthesis was mechanically activated in this study. The subject was the monitoring of changes in the physico-chemical characteristics of sodium carbonate after exposure to different degrees of activation time within the range of 1-28 minutes. After activation, the samples were deposited in three environments, CO2, air, and vacuum, at room temperature, in a period of 64 days. The mass changes occurring during the treatment were measured depending on the processing environment. Increasing the mass was evident and was attributed to the chemisorption of moisture and carbon dioxide present in the air as a consequence of the sodium carbonate activation. The methods also used were calcimetric chemical analysis and X-ray structural analysis. According to obtained results, it was found that activated sodium carbonate is mass-transformed into sodium bicarbonate, whereby these changes are functionally dependent on activation time and the processing environment.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment", pages = "444-433", number = "4", volume = "52", doi = "10.2298/SOS2004433D", url = "conv_876" }
Đorđević, N., Mihajlović, S.,& Patarić, A.. (2020). Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 52(4), 433-444. https://doi.org/10.2298/SOS2004433D conv_876
Đorđević N, Mihajlović S, Patarić A. Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment. in Science of Sintering. 2020;52(4):433-444. doi:10.2298/SOS2004433D conv_876 .
Đorđević, Nataša, Mihajlović, Slavica, Patarić, Aleksandra, "Thermodynamic Aspect of Sodium Carbonate Mechanical Transformations under Different Environment" in Science of Sintering, 52, no. 4 (2020):433-444, https://doi.org/10.2298/SOS2004433D ., conv_876 .