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Scientific paper - Original scientific paper
Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions
Croatica Chemica Acta, 71 (1998), 4; 1019-1038. urn:nbn:hr:217:989462
Šarić, Ankica; Musić, Svetozar; Nomura, Kiyoshi; Popović, Stanko

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Šarić, A., Musić, S., Nomura, K. & Popović, S. (1998). Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions. Croatica Chemica Acta, 71. (4), 1019-1038. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:989462

Šarić, Ankica, et al. "Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions." Croatica Chemica Acta, vol. 71, no. 4, 1998, pp. 1019-1038. https://urn.nsk.hr/urn:nbn:hr:217:989462

Šarić, Ankica, Svetozar Musić, Kiyoshi Nomura and Stanko Popović. "Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions." Croatica Chemica Acta 71, no. 4 (1998): 1019-1038. https://urn.nsk.hr/urn:nbn:hr:217:989462

Šarić, A., et al. (1998) 'Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions', Croatica Chemica Acta, 71(4), pp. 1019-1038. Available at: https://urn.nsk.hr/urn:nbn:hr:217:989462 (Accessed 19 November 2024)

Šarić A, Musić S, Nomura K, Popović S. Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions. Croatica Chemica Acta [Internet]. 1998 [cited 2024 November 19];71(4):1019-1038. Available at: https://urn.nsk.hr/urn:nbn:hr:217:989462

A. Šarić, S. Musić, K. Nomura and S. Popović, "Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions", Croatica Chemica Acta, vol. 71, no. 4, pp. 1019-1038, 1998. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:989462. [Accessed: 19 November 2024]

Metadata
Title (english)Influence of Urotropin on the Precipitation of Iron Oxides from FeCl 3 Solutions
AuthorAnkica Šarić
AuthorSvetozar Musić
AuthorKiyoshi Nomura
AuthorStanko Popović
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Precipitations of iron oxides from FeCl3 solutions in the presenceof urotropin at 90 oC were monitored using the Fourier transforminfrared spectroscopy, Mössbauer spectroscopy, X-ray diffractionand transmission electron microscopy. Urotropin was used as agenerator of OH– ions. The precipitation processes depended on theconcentrations of FeCl3 and urotropin and the time of aging. After1 day of aging the precipitation systems up to pH ≈ 2, the β-FeOOHphase was precipitated, while in the region of 5 < pH < 6 the mixturesof β-FeOOH, α-Fe2O3 and α-FeOOH were precipitated, andat pH > 6 the mixtures of α-Fe2O3 and α-FeOOH were observed.The -FeOOH phase precipitated at 2.16 < pH < 5.55 dissolved after7 days, yielding soluble iron for the α-FeOOH growth on account ofα-Fe2O3. At pH ≈ 1.5 and less, β-FeOOH was present as a singlephase up to 7 days of aging the precipitation systems. The mechanismsof iron oxide precipitation in dependence on pH were discussed.The size and morphology of oxide particles were stronglyinfluenced by experimental conditions of the precipitation processas shown by transmission electron microscopy.
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleCroatica Chemica Acta
Numberingvol. 71, no. 4, pp. 1019-1038
p-ISSN0011-1643
e-ISSN1334-417X
URN:NBNurn:nbn:hr:217:989462
Publication1998
Document URLhttps://hrcak.srce.hr/132435
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-10-06 13:27:16