Cyanogen chloride
- Formula: CClN
- Molecular weight: 61.470
- IUPAC Standard InChI: InChI=1S/CClN/c2-1-3
- IUPAC Standard InChIKey: QPJDMGCKMHUXFD-UHFFFAOYSA-N
- CAS Registry Number: 506-77-4
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: CK; Chlorine cyanide; Chlorocyan; Chlorocyanide; Chlorocyanogen; CNCl; ClCN; Chlorcyan; Cyanogen chloride ((CN)Cl); Chlorure de cyanogene; Rcra waste number P033; Cyanochloride; Chlorine cyanide (ClCN); Chlorocyanide (ClCN); Cyanochloride (CNCll); Cyanogen chloride (ClCN)
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Gas phase thermochemistry data
Go To: Top, 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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | 32.971 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1966 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 56.484 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1966 |
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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 600. | 600. to 6000. |
|---|---|---|
| A | 4.522711 | 13.13490 |
| B | 32.27130 | 1.418571 |
| C | -47.76840 | -0.259960 |
| D | 27.26300 | 0.019641 |
| E | 0.017722 | -0.482587 |
| F | 30.61420 | 27.62290 |
| G | 54.31750 | 69.93279 |
| H | 32.96991 | 32.96991 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in June, 1966 | Data last reviewed in June, 1966 |
Phase change data
Go To: Top, Gas 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:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 7.70 | 271. | Stull, 1947 | Based on data from 196. to 286. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
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| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 196.5 to 286.3 | 4.65606 | 1074.1 | -54.458 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 8.53 | 228. | A | Stull, 1947 | Based on data from 196. to 259. K.; AC |
References
Go To: Top, Gas phase thermochemistry data, Phase change 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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change 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 ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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