titanium tetraiodide
- Formula: I4Ti
- Molecular weight: 555.485
- CAS Registry Number: 7720-83-4
- Information on this page:
- Other data available:
- Options:
Gas phase thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -277.27 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1968 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 433.07 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1968 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
E/t2
H° − H°298.15= A*t + B*t2/2 +
C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 −
E/(2*t2) + G
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | 1500. to 6000. |
|---|---|
| A | 107.9832 |
| B | 0.089287 |
| C | -0.024249 |
| D | 0.002072 |
| E | -0.335384 |
| F | -310.5984 |
| G | 561.8317 |
| H | -277.2741 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1968 |
Phase change data
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 58.5 | 538. | Blocher and Campbell, 1947 | Based on data from 433. to 643. K. |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.1 | PE | Egdell and Orchard, 1978 | |
| 9.27 | PE | Egdell and Orchard, 1978 | Vertical value |
References
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Blocher and Campbell, 1947
Blocher, John M.; Campbell, Ivor E.,
The Vapor Pressure of Liquid Titanium Tetraiodide,
J. Am. Chem. Soc., 1947, 69, 9, 2100-2101, https://doi.org/10.1021/ja01201a006
. [all data]
Egdell and Orchard, 1978
Egdell, R.G.; Orchard, A.F.,
Photoelectron spectra of the group IVA halides,
J. Chem. Soc. Faraday Trans. 2, 1978, 74, 485. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.