- InChI
- InChI=1S/Kr
- InChI Key
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N
- Formula
- Kr
- SMILES
- [Kr]
- Molecular Weight1
- 83.80
- CAS
- 7439-90-9
- Other Names
-
- Kr
- UN 1056
- UN 1970
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- μ : Dipole Moment (debye).
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- IE : Ionization energy (eV).
- Pc : Critical Pressure (kPa).
- Ptriple : Triple Point Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρc : Critical density (kg/m3).
- ρl : Liquid Density (kg/m3).
- S°gas,1 bar : Molar entropy at standard conditions (1 bar) (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.
- Zra : Rackett Parameter.
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.0050 | KDB | |
| PAff | 424.60 | kJ/mol | NIST |
| BasG | 402.40 | kJ/mol | NIST |
| μ | 0.00 | debye | KDB |
| IE | [13.97; 14.67] | eV |
|
| IE | 14.00 ± 0.00 | eV | NIST |
| IE | 14.00 | eV | NIST |
| IE | 13.99 | eV | NIST |
| IE | 14.00 | eV | NIST |
| IE | 14.00 | eV | NIST |
| IE | 14.00 ± 0.00 | eV | NIST |
| IE | Outlier 14.67 ± 0.00 | eV | NIST |
| IE | 14.00 ± 0.00 | eV | NIST |
| IE | 13.99 ± 0.00 | eV | NIST |
| IE | Outlier 14.66 ± 0.00 | eV | NIST |
| IE | 14.00 | eV | NIST |
| IE | 13.97 ± 0.00 | eV | NIST |
| IE | 14.00 ± 0.05 | eV | NIST |
| IE | 14.01 ± 0.01 | eV | NIST |
| IE | 14.00 ± 0.00 | eV | NIST |
| IE | 14.05 | eV | NIST |
| Pc | [5500.00; 5520.19] | kPa |
|
| Pc | 5500.00 | kPa | KDB |
| Pc | 5520.19 ± 5.51 | kPa | NIST |
| Ptriple | [72.92; 73.15] | kPa |
|
| Ptriple | 72.92 | kPa | KDB |
| Ptriple | 73.15 ± 0.06 | kPa | NIST |
| ρc | 921.78 ± 9.13 | kg/m3 | NIST |
| S°gas,1 bar | 164.09 ± 0.00 | J/mol×K | NIST |
| Tboil | [119.78; 119.93] | K |
|
| Tboil | 119.93 | K | KDB |
| Tboil | 119.78 ± 0.05 | K | NIST |
| Tc | [209.41; 209.46] | K |
|
| Tc | 209.41 | K | KDB |
| Tc | 209.46 ± 0.02 | K | NIST |
| Tfus | 115.79 | K | KDB |
| Ttriple | [115.76; 116.10] | K |
|
| Ttriple | 115.80 | K | KDB |
| Ttriple | 115.76 ± 0.08 | K | NIST |
| Ttriple | 116.10 ± 0.40 | K | NIST |
| Ttriple | 115.95 ± 0.20 | K | NIST |
| Vc | 0.091 | m3/kmol | KDB |
| Zc | 0.2874550 | KDB | |
| Zra | 0.29 | KDB |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 11.54 | kJ/mol | 40.50 | Measure... |
| ρl | 2420.00 | kg/m3 | 120.00 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [73.62; 5504.84] | kPa | [115.78; 209.35] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.41355e+01 | |||
| Coefficient B | -1.17804e+03 | |||
| Coefficient C | 3.98000e+00 | |||
| Temperature range, min. | 115.78 | |||
| Temperature range, max. | 209.35 | |||
| Pvap | 73.62 | kPa | 115.78 | Calculated Property |
| Pvap | 161.51 | kPa | 126.18 | Calculated Property |
| Pvap | 315.48 | kPa | 136.57 | Calculated Property |
| Pvap | 561.92 | kPa | 146.97 | Calculated Property |
| Pvap | 929.12 | kPa | 157.37 | Calculated Property |
| Pvap | 1445.52 | kPa | 167.76 | Calculated Property |
| Pvap | 2138.29 | kPa | 178.16 | Calculated Property |
| Pvap | 3032.10 | kPa | 188.56 | Calculated Property |
| Pvap | 4148.38 | kPa | 198.95 | Calculated Property |
| Pvap | 5504.84 | kPa | 209.35 | Calculated Property |
Mixtures
- helium + Krypton
- 2-Propanol, 1,1,1,3,3,3-hexafluoro- + Krypton + Water
- Furan, tetrahydro-2,5-dimethyl- + Krypton + Furan, tetrahydro-2,5-dimethyl-, cis-
- 2,5,8,11-Tetraoxadodecane + Krypton
- Tetraglyme + Krypton
- Carbonic acid, dimethyl ester + Krypton
- Diethyl carbonate + Krypton
Sources
- Binary Diffusion Coefficient Data of Various Gas Systems Determined Using a Loschmidt Cell and Holographic Interferometry
- Physical data for a process to separate krypton from air by selective absorption in an ionic liquid
- Solubility of gases in fluoroorganic alcohols. Part II. Solubilities of noble gases in (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at 298.15 K and 101.33 kPa
- Solubilities of some gases in four immidazolium-based ionic liquids
- Measurements of enthalpy of sublimation of Ne, N2, O2, Ar, CO2, Kr, Xe, and H2O using a double paddle oscillator
- Solubilities of gases in cycloethers. The solubility of 13 nonpolar gases in 2,5-dimethyltetrahydrofuran at 273.15 to 303.15 K and 101.32 kPa
- Solubilities of Nonpolar Gases in Triethylene Glycol Dimethyl Ether, Tetraethylene Glycol Dimethyl Ether, Dimethyl Carbonate, and Diethyl Carbonate at 298.15 K and 101.33 kPa Partial Pressure of Gas
- KDB
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
Take the time to validate and double check the source of the data.
Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.