Abstract
Experiments on the simultaneous exchange of Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Mn2+, Ca2+ and Sr2+ between hedenbergite or tremolite and 2M aqueous chloride solutions were carried out in the temperature range of 500 to 800°C, 1 kb. The PC-IR curves for the both minerals show a similar shape and have peaks near Ni2+ and Ca2+. The former peak corresponds to 6 coordination and the latter peak to 8 coordination. The PC-IR curves suggest that Ni2+, Mg2+ and Fe2+ are partitioned preferably in 6 coordination of the minerals and Mn2+, Ca2+ and Sr2+ in 8 coordination. However Co2+ and Zn2+ deviate from such a trend. The ion selectivity decreases with increasing temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 233-241 |
| Number of pages | 9 |
| Journal | Japanese Magazine of Mineralogical and Petrological Sciences |
| Volume | 34 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2005 |
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Keywords
- Aqueous chloride solution
- Hedenbergite
- Partition coefficient
- PC-IR diagram
- Supercritical condition
- Tremolite
ASJC Scopus subject areas
- Geochemistry and Petrology
- Economic Geology
Cite this
Experiments on the simultaneous partitioning of divalent metal ions between hedenbergite or tremolite and 2M aqueous chloride solutions under supercritical conditions. / Uchida, Etsuo; Uekusa, Junichi; Kataoka, Tasuku.
In: Japanese Magazine of Mineralogical and Petrological Sciences, Vol. 34, No. 5, 2005, p. 233-241.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Experiments on the simultaneous partitioning of divalent metal ions between hedenbergite or tremolite and 2M aqueous chloride solutions under supercritical conditions
AU - Uchida, Etsuo
AU - Uekusa, Junichi
AU - Kataoka, Tasuku
PY - 2005
Y1 - 2005
N2 - Experiments on the simultaneous exchange of Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Mn2+, Ca2+ and Sr2+ between hedenbergite or tremolite and 2M aqueous chloride solutions were carried out in the temperature range of 500 to 800°C, 1 kb. The PC-IR curves for the both minerals show a similar shape and have peaks near Ni2+ and Ca2+. The former peak corresponds to 6 coordination and the latter peak to 8 coordination. The PC-IR curves suggest that Ni2+, Mg2+ and Fe2+ are partitioned preferably in 6 coordination of the minerals and Mn2+, Ca2+ and Sr2+ in 8 coordination. However Co2+ and Zn2+ deviate from such a trend. The ion selectivity decreases with increasing temperature.
AB - Experiments on the simultaneous exchange of Ni2+, Mg2+, Co2+, Zn2+, Fe2+, Mn2+, Ca2+ and Sr2+ between hedenbergite or tremolite and 2M aqueous chloride solutions were carried out in the temperature range of 500 to 800°C, 1 kb. The PC-IR curves for the both minerals show a similar shape and have peaks near Ni2+ and Ca2+. The former peak corresponds to 6 coordination and the latter peak to 8 coordination. The PC-IR curves suggest that Ni2+, Mg2+ and Fe2+ are partitioned preferably in 6 coordination of the minerals and Mn2+, Ca2+ and Sr2+ in 8 coordination. However Co2+ and Zn2+ deviate from such a trend. The ion selectivity decreases with increasing temperature.
KW - Aqueous chloride solution
KW - Hedenbergite
KW - Partition coefficient
KW - PC-IR diagram
KW - Supercritical condition
KW - Tremolite
UR - http://www.scopus.com/inward/record.url?scp=85024735531&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85024735531&partnerID=8YFLogxK
U2 - 10.2465/gkk.34.233
DO - 10.2465/gkk.34.233
M3 - Article
VL - 34
SP - 233
EP - 241
JO - Japanese Magazine of Mineralogical and Petrological Sciences
JF - Japanese Magazine of Mineralogical and Petrological Sciences
SN - 1349-7979
IS - 5
ER -