The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures
The solubility of tugarinovite (MoO2) in pure water was investigated at temperatures between 400 and 800°C and at pressures ranging between 95 and 480 MPa by using in situ synchrotron X-ray fluorescence (SXRF) to separately analyze high temperature aqueous solutions in a hydrothermal diamond anvil c...
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| Language: | English |
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Wiley
2017-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2017/5459639 |
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| author | Pritam Saha Alan J. Anderson Thomas Lee Matthias Klemm |
| author_facet | Pritam Saha Alan J. Anderson Thomas Lee Matthias Klemm |
| author_sort | Pritam Saha |
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| description | The solubility of tugarinovite (MoO2) in pure water was investigated at temperatures between 400 and 800°C and at pressures ranging between 95 and 480 MPa by using in situ synchrotron X-ray fluorescence (SXRF) to separately analyze high temperature aqueous solutions in a hydrothermal diamond anvil cell (HDAC). The concentration of molybdenum in the fluid at 400 and 500°C was below detection; however, at temperatures between 600 and 800°C, the solubility of tugarinovite increased with increasing temperature by two orders of magnitude. The molybdenum concentration at 600°C and 800°C is 44 ppm and 658 ppm, respectively. The results complement the data of Kudrin (1985) and provide the first measurement of MoO2 solubility at pressure and temperature conditions comparable to intrusion-related Mo deposit formation. The data are also relevant to the study of water chemistry and corrosion product transport in supercritical-water-cooled reactors, where Mo-bearing steel alloys interact with aqueous solutions at temperatures greater than 600°C. The application of in situ SXRF to solubility measurements of sparingly soluble minerals is recommended because it circumvents analytical uncertainties inherent in determinations obtained by quenching and weight loss measurements. |
| format | Article |
| id | doaj-art-a01d2972ff2f4fea822a4bf917c28d93 |
| institution | OA Journals |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
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| series | Geofluids |
| spelling | doaj-art-a01d2972ff2f4fea822a4bf917c28d932025-08-20T02:23:04ZengWileyGeofluids1468-81151468-81232017-01-01201710.1155/2017/54596395459639The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and PressuresPritam Saha0Alan J. Anderson1Thomas Lee2Matthias Klemm3Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS, B2G 2W5, CanadaDepartment of Earth Sciences, St. Francis Xavier University, Antigonish, NS, B2G 2W5, CanadaDepartment of Earth Sciences, St. Francis Xavier University, Antigonish, NS, B2G 2W5, CanadaExperimentalphysik II, Institut für Physik, Universität Augsburg, 86135 Augsburg, GermanyThe solubility of tugarinovite (MoO2) in pure water was investigated at temperatures between 400 and 800°C and at pressures ranging between 95 and 480 MPa by using in situ synchrotron X-ray fluorescence (SXRF) to separately analyze high temperature aqueous solutions in a hydrothermal diamond anvil cell (HDAC). The concentration of molybdenum in the fluid at 400 and 500°C was below detection; however, at temperatures between 600 and 800°C, the solubility of tugarinovite increased with increasing temperature by two orders of magnitude. The molybdenum concentration at 600°C and 800°C is 44 ppm and 658 ppm, respectively. The results complement the data of Kudrin (1985) and provide the first measurement of MoO2 solubility at pressure and temperature conditions comparable to intrusion-related Mo deposit formation. The data are also relevant to the study of water chemistry and corrosion product transport in supercritical-water-cooled reactors, where Mo-bearing steel alloys interact with aqueous solutions at temperatures greater than 600°C. The application of in situ SXRF to solubility measurements of sparingly soluble minerals is recommended because it circumvents analytical uncertainties inherent in determinations obtained by quenching and weight loss measurements.http://dx.doi.org/10.1155/2017/5459639 |
| spellingShingle | Pritam Saha Alan J. Anderson Thomas Lee Matthias Klemm The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures Geofluids |
| title | The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures |
| title_full | The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures |
| title_fullStr | The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures |
| title_full_unstemmed | The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures |
| title_short | The Solubility of Tugarinovite (MoO2) in H2O at Elevated Temperatures and Pressures |
| title_sort | solubility of tugarinovite moo2 in h2o at elevated temperatures and pressures |
| url | http://dx.doi.org/10.1155/2017/5459639 |
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