Sodium iodide
- Formula: INa
- Molecular weight: 149.89424
- IUPAC Standard InChI: InChI=1S/HI.Na/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: FVAUCKIRQBBSSJ-UHFFFAOYSA-M
- CAS Registry Number: 7681-82-5
- Chemical structure:
This structure is also available as a 2d Mol file - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Condensed phase thermochemistry data
Go To: Top, Reaction thermochemistry 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°liquid | -63.697 | kcal/mol | Review | Chase, 1998 | Data last reviewed in September, 1963 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 28.860 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1963 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -68.800 | kcal/mol | Review | Chase, 1998 | Data last reviewed in September, 1963 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid | 23.54 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1963 |
Liquid 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | 933. - 3000. |
|---|---|
| A | 15.49998 |
| B | 0.000016 |
| C | -0.000006 |
| D | 7.327367×10-7 |
| E | 0.000005 |
| F | -69.07553 |
| G | 45.82553 |
| H | -63.69694 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1963 |
Solid 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | 298. - 933. |
|---|---|
| A | 11.99800 |
| B | 2.444520 |
| C | 0.134929 |
| D | -0.052825 |
| E | -0.022616 |
| F | -72.56300 |
| G | 37.19981 |
| H | -68.80000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1963 |
Reaction thermochemistry data
Go To: Top, Condensed phase thermochemistry 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
MS - José A. Martinho Simões
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
2 +
=
+
+ CNO.Na
By formula: 2HNaO + CIN = INa + H2O + CNO.Na
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -46.35 ± 0.08 | kcal/mol | Cm | Lord and Woolf, 1954 | solid phase; Heat of hydrolysis; ALS |
C8H5MoNaO3 (solution) + (cr) = C8H5IMoO3 (solution) +
(cr)
By formula: C8H5MoNaO3 (solution) + I2 (cr) = C8H5IMoO3 (solution) + INa (cr)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -31.8 ± 1.3 | kcal/mol | RSC | Nolan, López de la Vega, et al., 1986 | solvent: Tetrahydrofuran; MS |
C8H5MoNaO3 (solution) + (l) = C9H8MoO3 (solution) +
(cr)
By formula: C8H5MoNaO3 (solution) + CH3I (l) = C9H8MoO3 (solution) + INa (cr)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -7.70 ± 0.31 | kcal/mol | RSC | Nolan, López de la Vega, et al., 1986 | solvent: Tetrahydrofuran; MS |
References
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry 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]
Lord and Woolf, 1954
Lord, G.; Woolf, A.A.,
The cyanogen halides. Part III. Their heats of formation and free energies,
J. Chem. Soc., 1954, 2546-2551. [all data]
Nolan, López de la Vega, et al., 1986
Nolan, S.P.; López de la Vega, R.; Hoff, C.D.,
J. Organometal. Chem., 1986, 315, 187. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) S°solid Entropy of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔrH° Enthalpy of reaction at standard conditions - 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.