hrcak mascot   Srce   HID

Prethodno priopćenje

EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS

Goutam Hazra   ORCID icon orcid.org/0000-0003-1908-3347 ; Department of Chemistry, Kalna College, Kalna, Burdwan, India
Patit Paban Malik ; Department of Chemistry, B. B. College, Asansol, Burdwan, India
Partha Mitra ; Department of Physics, The University of Burdwan, Burdwan, India
Tanmoy Das ; Department of Chemistry, The University of Burdwan, Burdwan, India

Puni tekst: engleski, pdf (301 KB) str. 171-180 preuzimanja: 202* citiraj
APA 6th Edition
Hazra, G., Paban Malik, P., Mitra, P. i Das, T. (2014). EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS. The holistic approach to environment, 4 (4), 171-180. Preuzeto s https://hrcak.srce.hr/128737
MLA 8th Edition
Hazra, Goutam, et al. "EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS." The holistic approach to environment, vol. 4, br. 4, 2014, str. 171-180. https://hrcak.srce.hr/128737. Citirano 09.12.2019.
Chicago 17th Edition
Hazra, Goutam, Patit Paban Malik, Partha Mitra i Tanmoy Das. "EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS." The holistic approach to environment 4, br. 4 (2014): 171-180. https://hrcak.srce.hr/128737
Harvard
Hazra, G., et al. (2014). 'EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS', The holistic approach to environment, 4(4), str. 171-180. Preuzeto s: https://hrcak.srce.hr/128737 (Datum pristupa: 09.12.2019.)
Vancouver
Hazra G, Paban Malik P, Mitra P, Das T. EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS. The holistic approach to environment [Internet]. 2014 [pristupljeno 09.12.2019.];4(4):171-180. Dostupno na: https://hrcak.srce.hr/128737
IEEE
G. Hazra, P. Paban Malik, P. Mitra i T. Das, "EFFECT OF DIFFERENT MODIFIERS ON MELTING POINTS, PH UNDER LEACHING AND LEACHING RATES IN SIMULATED NUCLEAR WASTE GLASSES IN BOROSILICATE AND PHOSPHATE SYSTEMS", The holistic approach to environment, vol.4, br. 4, str. 171-180, 2014. [Online]. Dostupno na: https://hrcak.srce.hr/128737. [Citirano: 09.12.2019.]

Sažetak
Glasses were melted in the Borosilicate, Phosphate and Pure silicate systems. In the present work we could melt the glass at much lower temperature (800-950oC) with a soaking period of 30 min to 1 h which were earlier reported to be melted not below 1000oC. Considering that the glass will be utilized to incorporate nuclear waste with some of the fission products which are highly volatile, the lower the glass processing temperatures the better will be the glass melt. Leaching studies of nuclear waste glasses are important from the view point that they are to be stored for very long period under burial. The effect of different modifier ions like: Pb2+, Ba2+, Na+, Fe3+, Al3+, Y3+, Ca2+, Ce4+ and Sr2+ in each of the basic glass system viz, borosilicate and phosphate networks on meltings and time of melting has been found to be evident. The pH determination ranging from 6.43 up to 8.18 of the leachate solution at ambient temperature under varying time intervals shows interesting and regular variations. The results are in conformity with the change of equilibrium pH under varying leaching time reported by other authors. The leaching study of such glasses under Soxhlet condition shows that lead ion (Pb2+) to be a superior candidate as modifier towards leach resistance. The findings have been corroborated in terms of ionic size, ionic radii and hence ionic potential of the modifier ions incorporated into the glass structure.

Ključne riječi
nuclear waste; fission fragments; glass formers and modifiers; ionic potential; leaching

Hrčak ID: 128737

URI
https://hrcak.srce.hr/128737

Posjeta: 329 *