Strontium, doubly charged positive ion
- Formula: Sr+2
- Molecular weight: 87.62
- CAS Registry Number: 22537-39-9
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Reaction thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
(Sr+2 • 10) +
= (Sr+2 • 11
)
By formula: (Sr+2 • 10H2O) + H2O = (Sr+2 • 11H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14. ± 3. | kcal/mol | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | N/A | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 7.2 | 300. | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
(Sr+2 • 11) +
= (Sr+2 • 12
)
By formula: (Sr+2 • 11H2O) + H2O = (Sr+2 • 12H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14. ± 3. | kcal/mol | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | N/A | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 6.9 | 300. | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
(Sr+2 • 9) +
= (Sr+2 • 10
)
By formula: (Sr+2 • 9H2O) + H2O = (Sr+2 • 10H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 14. ± 3. | kcal/mol | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | N/A | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 7.3 | 300. | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
(Sr+2 • 8) +
= (Sr+2 • 9
)
By formula: (Sr+2 • 8H2O) + H2O = (Sr+2 • 9H2O)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 15. ± 3. | kcal/mol | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 23. | cal/mol*K | N/A | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
Free energy of reaction
| ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 8.0 | 300. | HPMS | Blades, Jayaweera, et al., 1990 | gas phase; electospray, Entropy change calculated or estimated |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Blades, Jayaweera, et al., 1990
Blades, A.T.; Jayaweera, P.; Ikonomou, M.G.; Kebarle, P.,
Studies of Alkaline - Earth and Transition - Metal M++ Gas - Phase Ion Chemistry,
J. Chem. Phys., 1990, 92, 10, 5900, https://doi.org/10.1063/1.458360
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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