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Luminescence Features of Yellow Fe2O3 Geruwa Mineral
N. C. Pandey1
- Department of Physics, Th. D. S. B. College Nainital, Kumaun University, Uttarakhand, India.
Section:Research Paper, Product Type: Journal-Paper
Vol.7 ,
Issue.1 , pp.5-7, Mar-2020
Online published on Apr 30, 2020
Copyright © N. C. Pandey . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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IEEE Style Citation: N. C. Pandey, “Luminescence Features of Yellow Fe2O3 Geruwa Mineral,” Journal of Physics and Chemistry of Materials, Vol.7, Issue.1, pp.5-7, 2020.
MLA Style Citation: N. C. Pandey "Luminescence Features of Yellow Fe2O3 Geruwa Mineral." Journal of Physics and Chemistry of Materials 7.1 (2020): 5-7.
APA Style Citation: N. C. Pandey, (2020). Luminescence Features of Yellow Fe2O3 Geruwa Mineral. Journal of Physics and Chemistry of Materials, 7(1), 5-7.
BibTex Style Citation:
@article{Pandey_2020,
author = {N. C. Pandey},
title = {Luminescence Features of Yellow Fe2O3 Geruwa Mineral},
journal = {Journal of Physics and Chemistry of Materials},
issue_date = {3 2020},
volume = {7},
Issue = {1},
month = {3},
year = {2020},
issn = {2347-2693},
pages = {5-7},
url = {https://www.isroset.org/journal/JPCM/full_paper_view.php?paper_id=1801},
publisher = {IJCSE, Indore, INDIA},
}
RIS Style Citation:
TY - JOUR
UR - https://www.isroset.org/journal/JPCM/full_paper_view.php?paper_id=1801
TI - Luminescence Features of Yellow Fe2O3 Geruwa Mineral
T2 - Journal of Physics and Chemistry of Materials
AU - N. C. Pandey
PY - 2020
DA - 2020/04/30
PB - IJCSE, Indore, INDIA
SP - 5-7
IS - 1
VL - 7
SN - 2347-2693
ER -
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Abstract :
The chemistry of Al2O3.2H2O Fe2O3 TiO2.4SiO2 mineral ore is related with finding of bauxite Al2O3.2H2O, hematite Fe2O3 and titanium silicate TiO2.4SiO2 together by a loose type of bonding with each other. Thus, when the mineral is dropped in a water jar, Al2O3.2H2O dissolves in water, hence increases the density of water. Fe2O3 due to its relatively low density remains floating in it in the molecular form. While, green sand part of titanium silicate is found to settle at the bottom of the jar due to its relatively high density. The water solution containing alumina as dissolved and Fe2O3 as swimming in it appears brown in colour. Al2O3- Fe2O3 attractive interactions are involved for the apparent brown colour of Fe2O3 molecules due to the cause of swimming of it in alumina dissolved water solution of high density. On decreasing the density of brown solution by adding excess of water, yellow tiny particles of Fe2O3 appear to grow in size by moving towards the bottom due to high density than of low concentrated alumina water solution now. Thus, Fe2O3 - Fe2O3 attractive interactions are responsible for the appearance of immersing yellow precipitates of Fe2O3 molecules in view of it’s actual features of luminescence.
Key-Words / Index Term :
Fe2O3, Luminescence
References :
[1] J. K. Khanna, “General Inorganic Chemistry”, Raj Hans publication, India, pp. 597, 1994.
[2] N. C. Pandey & J. C. Joshi, “Holmium & Erbium Fluorescence in Calcium Tungstate Crystal”, Indian Journal of Pure & Applied Physics, Vol. 19, Issue. May, pp. 403 – 406, 1981.
[3] J. C. Joshi, N. C. Pandey et al, “Visible Green Emission of Holmium and Erbium in Tellurite Glass”, Solid State
Communications , Vol. 27, Issue. 11, pp. 1051 - 1053, 1978.
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