том 36 издание 4 страницы 459-470

Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o

Тип публикацииJournal Article
Дата публикации1972-04-01
SCImago Q1
Tоп 10% SCImago
WOS Q1
БС1
SJR2.172
CiteScore9.1
Impact factor5
ISSN00167037, 0046564X
Geochemistry and Petrology
Краткое описание
A portion of the solubility isotherm for synthetic vivianite (Fe3(PO4)2·8H2O) in the three component system Fe3(PO4)2-H3PO4-H2O has been determined at 25°C. Interpretation of the data allowing for the formation of the ion-pairs FeH2PO4+ and FeHPO4° resulted in the solubility product constant for vivianite of 10−36.0±0.1. The association constants obtained were 102.7±0.2 and 103.6±0.3 respectively for FeH2PO4+ and FeHPO4°. The solubility data show that vivianite may be of significance in controlling the phosphate concentration in anaerobic sedimentary environments and that Fe2+ can be an effective precipitant for removing orthophosphates from anaerobic digester supernatant and related process streams. The ΔGf° for vivianite of −1037 kcal/mole along with the other data from the literature were used to construct diagrams depicting the stability fields of vivianite and strengite (FePO4·2H2O) in different chemical environments.
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Nriagu J. O. Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o // Geochimica et Cosmochimica Acta. 1972. Vol. 36. No. 4. pp. 459-470.
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Nriagu J. O. Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o // Geochimica et Cosmochimica Acta. 1972. Vol. 36. No. 4. pp. 459-470.
RIS |
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TY - JOUR
DO - 10.1016/0016-7037(72)90035-X
UR - https://doi.org/10.1016/0016-7037(72)90035-X
TI - Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o
T2 - Geochimica et Cosmochimica Acta
AU - Nriagu, J. O.
PY - 1972
DA - 1972/04/01
PB - Elsevier
SP - 459-470
IS - 4
VL - 36
SN - 0016-7037
SN - 0046-564X
ER -
BibTex |
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BibTex (до 50 авторов) Скопировать
@article{1972_Nriagu,
author = {J. O. Nriagu},
title = {Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o},
journal = {Geochimica et Cosmochimica Acta},
year = {1972},
volume = {36},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016/0016-7037(72)90035-X},
number = {4},
pages = {459--470},
doi = {10.1016/0016-7037(72)90035-X}
}
MLA
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Nriagu, J. O.. “Stability of vivianite and ion-pair formation in the system fe3(PO4)2-H3PO4H3PO4-H2o.” Geochimica et Cosmochimica Acta, vol. 36, no. 4, Apr. 1972, pp. 459-470. https://doi.org/10.1016/0016-7037(72)90035-X.
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