Particle size effect of silica gel on the y-radiation induced electrical conductivity of urea aqueous solutions
Source
Arab Journal of Nuclear Sciences and Applications
Issue
Vol. 53, Issue 4 (31 Oct. 2020), pp.81-87, 7 p.
Publisher
The Egyptian Society of Nuclear Science and Applications
Publication Date
2020-10-31
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Topics
Abstract EN
Different concentrations (0.1, 3, 6 M) of urea aqueous Solutions (UAS) have been irradiated with 60Co- ɤ-rays in the presence of silica gel (SG) with different particle size (0.1-0.5mm) at room temperature.
The radiation induced electrical conductivity (RIC) of the irradiated solutions was measured.
The RIC values of the 0.1 M solutions increase as the particle size of SG decreases i.
e.
, the particle surface area increases.
This observation points to a radiation induced chemical reactions, which are catalyzed by SG.
These reactions, probably, yield products, which increase the RIC such as urea peroxide (UP).
On the other hand, different behavior was observed in the case of 3, 6 M solutions, where, the RIC increases as particle size increase.
So, the mechanism of production of the species which increase the RIC of 0.1 M samples is different than that in the case of 3, 6 M.
In all irradiated samples the pH values tend to increase slightly as particle size increases.
A mechanism was proposed to explain the obtained data.
American Psychological Association (APA)
Sayf al-Din, Kh. A.. 2020. Particle size effect of silica gel on the y-radiation induced electrical conductivity of urea aqueous solutions. Arab Journal of Nuclear Sciences and Applications،Vol. 53, no. 4, pp.81-87.
https://search.emarefa.net/detail/BIM-979210
Modern Language Association (MLA)
Sayf al-Din, Kh. A.. Particle size effect of silica gel on the y-radiation induced electrical conductivity of urea aqueous solutions. Arab Journal of Nuclear Sciences and Applications Vol. 53, no. 4 (Oct. 2020), pp.81-87.
https://search.emarefa.net/detail/BIM-979210
American Medical Association (AMA)
Sayf al-Din, Kh. A.. Particle size effect of silica gel on the y-radiation induced electrical conductivity of urea aqueous solutions. Arab Journal of Nuclear Sciences and Applications. 2020. Vol. 53, no. 4, pp.81-87.
https://search.emarefa.net/detail/BIM-979210
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 86-87
Record ID
BIM-979210