- InChI
- InChI=1S/CHN/c1-2/h1H
- InChI Key
- LELOWRISYMNNSU-UHFFFAOYSA-N
- Formula
- CHN
- SMILES
- C#N
- Molecular Weight1
- 27.03
- CAS
- 74-90-8
- Other Names
-
- AC
- Acide cyanhydrique
- Acido cianidrico
- Aero Liquid HCN
- Agent AC
- Blausaeure
- Blausaeure (German)
- Blauwzuur
- CARBON HYDRIDE NITIDE
- Carbon hydride nitride
- Carbon hydride nitride (CHN)
- Cyaanwaterstof
- Cyanwasserstoff
- Cyclon
- Cyclone B
- Cyjanowodor
- Evercyn
- FORMONITRILE
- Formic anammonide
- HCN
- HYDROCYANIC ACID
- NA 1051
- Nitrilomethane
- Prussic Acid
- Prussic acid, unstabilized
- Rcra waste number P063
- UN 1051
- Zaclondiscoids
- Zootic acid
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- μ : Dipole Moment (debye).
- EA : Electron affinity (eV).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔsubH : Enthalpy of sublimation at a given temperature (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- IE : Ionization energy (eV).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- NFPA Fire : NFPA Fire Rating.
- NFPA Health : NFPA Health Rating.
- NFPA Safety : NFPA Safety Rating.
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- S°liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
- ΔvapS : Entropy of vaporization at a given temperature (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (K).
- Vc : Critical Volume (m3/kmol).
- Zc : Critical Compressibility.
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.3880 | KDB | |
| PAff | 712.90 | kJ/mol | NIST |
| BasG | 681.60 | kJ/mol | NIST |
| μ | 3.00 | debye | KDB |
| EA | [0.00; 1.00] | eV |
|
| EA | 0.00 | eV | NIST |
| EA | 1.00 | eV | NIST |
| ΔfG° | 120.20 | kJ/mol | KDB |
| ΔfH°gas | 130.60 | kJ/mol | KDB |
| ΔfusH° | 1.53 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 28.15 | kJ/mol | Joback Calculated Property |
| IE | [13.59; 13.73] | eV |
|
| IE | 13.60 ± 0.01 | eV | NIST |
| IE | 13.71 | eV | NIST |
| IE | 13.59 ± 0.01 | eV | NIST |
| IE | 13.60 ± 0.01 | eV | NIST |
| IE | 13.73 ± 0.09 | eV | NIST |
| IE | 13.70 ± 0.10 | eV | NIST |
| IE | 13.61 | eV | NIST |
| IE | 13.61 ± 0.00 | eV | NIST |
| IE | 13.60 | eV | NIST |
| IE | 13.61 ± 0.01 | eV | NIST |
| log10WS | -0.11 | Crippen Calculated Property | |
| logPoct/wat | 0.140 | Crippen Calculated Property | |
| McVol | 26.330 | ml/mol | McGowan Calculated Property |
| NFPA Fire | 4 | KDB | |
| NFPA Health | 4 | KDB | |
| NFPA Safety | 2 | KDB | |
| Pc | 5390.00 | kPa | KDB |
| Inp | [300.00; 320.00] |
|
|
| Inp | 319.90 | NIST | |
| Inp | 300.00 | NIST | |
| Inp | 320.00 | NIST | |
| Inp | 319.90 | NIST | |
| S°liquid | 113.01 | J/mol×K | NIST |
| Tboil | [298.80; 299.70] | K |
|
| Tboil | 299.00 | K | KDB |
| Tboil | 298.90 ± 0.50 | K | NIST |
| Tboil | 298.90 ± 0.40 | K | NIST |
| Tboil | 299.00 ± 0.40 | K | NIST |
| Tboil | 299.00 ± 1.50 | K | NIST |
| Tboil | 298.90 ± 0.50 | K | NIST |
| Tboil | 299.08 ± 0.40 | K | NIST |
| Tboil | 298.90 ± 0.50 | K | NIST |
| Tboil | 298.80 ± 0.50 | K | NIST |
| Tboil | 298.90 ± 0.30 | K | NIST |
| Tboil | 298.90 ± 0.40 | K | NIST |
| Tboil | 299.50 ± 1.00 | K | NIST |
| Tboil | 298.90 ± 1.00 | K | NIST |
| Tboil | Outlier 299.70 ± 0.50 | K | NIST |
| Tboil | 298.90 ± 0.50 | K | NIST |
| Tboil | 299.40 ± 0.60 | K | NIST |
| Tc | 456.70 | K | KDB |
| Tfus | [258.29; 286.50] | K |
|
| Tfus | 259.70 | K | KDB |
| Tfus | 259.85 ± 0.20 | K | NIST |
| Tfus | 259.90 ± 0.10 | K | NIST |
| Tfus | 259.88 ± 0.10 | K | NIST |
| Tfus | 259.86 ± 0.05 | K | NIST |
| Tfus | 258.30 ± 1.00 | K | NIST |
| Tfus | Outlier 286.50 ± 0.20 | K | NIST |
| Tfus | 259.20 ± 0.50 | K | NIST |
| Tfus | 259.00 ± 1.50 | K | NIST |
| Tfus | 258.29 ± 1.00 | K | NIST |
| Tfus | 259.75 ± 0.30 | K | NIST |
| Tfus | 259.80 ± 0.20 | K | NIST |
| Tfus | 259.85 ± 0.30 | K | NIST |
| Tfus | 259.81 ± 0.50 | K | NIST |
| Tfus | 259.75 ± 0.50 | K | NIST |
| Ttriple | 259.86 ± 0.02 | K | NIST |
| Vc | 0.139 | m3/kmol | KDB |
| Zc | 0.1973040 | KDB |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [24.62; 28.13] | J/mol×K | [323.66; 514.23] |
|
| Cp,gas | 24.62 | J/mol×K | 323.66 | Joback Calculated Property |
| Cp,gas | 25.63 | J/mol×K | 355.42 | Joback Calculated Property |
| Cp,gas | 26.44 | J/mol×K | 387.18 | Joback Calculated Property |
| Cp,gas | 27.08 | J/mol×K | 418.95 | Joback Calculated Property |
| Cp,gas | 27.56 | J/mol×K | 450.71 | Joback Calculated Property |
| Cp,gas | 27.91 | J/mol×K | 482.47 | Joback Calculated Property |
| Cp,gas | 28.13 | J/mol×K | 514.23 | Joback Calculated Property |
| Cp,liquid | 71.00 | J/mol×K | 300.00 | NIST |
| ΔfusH | 8.41 | kJ/mol | 259.90 | NIST |
| ΔsubH | [35.60; 37.60] | kJ/mol | [228.00; 247.50] |
|
| ΔsubH | 37.60 | kJ/mol | 228.00 | NIST |
| ΔsubH | 35.60 | kJ/mol | 247.50 | NIST |
| ΔvapH | [25.22; 28.10] | kJ/mol | [276.50; 377.50] |
|
| ΔvapH | 28.00 | kJ/mol | 276.50 | NIST |
| ΔvapH | 28.10 | kJ/mol | 279.00 | NIST |
| ΔvapH | 27.80 | kJ/mol | 282.50 | NIST |
| ΔvapH | 28.10 | kJ/mol | 286.00 | NIST |
| ΔvapH | 27.20 | kJ/mol | 287.50 | NIST |
| ΔvapH | 28.10 | kJ/mol | 288.00 | NIST |
| ΔvapH | 25.22 | kJ/mol | 298.85 | NIST |
| ΔvapH | 27.80 | kJ/mol | 377.50 | NIST |
| ρl | 688.00 | kg/m3 | 293.00 | KDB |
| ΔfusS | 32.34 | J/mol×K | 259.90 | NIST |
| ΔvapS | 84.38 | J/mol×K | 298.85 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 5289.38] | kPa | [215.04; 456.65] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.64196e+01 | |||
| Coefficient B | -3.69077e+03 | |||
| Coefficient C | 1.37430e+01 | |||
| Temperature range, min. | 215.04 | |||
| Temperature range, max. | 456.65 | |||
| Pvap | 1.33 | kPa | 215.04 | Calculated Property |
| Pvap | 7.25 | kPa | 241.89 | Calculated Property |
| Pvap | 28.61 | kPa | 268.73 | Calculated Property |
| Pvap | 88.92 | kPa | 295.58 | Calculated Property |
| Pvap | 230.57 | kPa | 322.42 | Calculated Property |
| Pvap | 519.30 | kPa | 349.27 | Calculated Property |
| Pvap | 1045.86 | kPa | 376.11 | Calculated Property |
| Pvap | 1924.65 | kPa | 402.96 | Calculated Property |
| Pvap | 3289.76 | kPa | 429.80 | Calculated Property |
| Pvap | 5289.38 | kPa | 456.65 | Calculated Property |
Similar Compounds
Find more compounds similar to Hydrogen cyanide.
Sources
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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