- InChI
- InChI=1S/C8H18O/c1-5-7(3)9-8(4)6-2/h7-8H,5-6H2,1-4H3
- InChI Key
- HHBZZTKMMLDNDN-UHFFFAOYSA-N
- Formula
- C8H18O
- SMILES
- CCC(C)OC(C)CC
- Molecular Weight1
- 130.23
- CAS
- 6863-58-7
- Other Names
-
- (sec-C4H9)2O
- 2,2'-OXYBIS-BUTANE
- 2,2'-oxybisbutane
- 3,5-dimethyl-4-oxaheptane
- Bis(2-butyl)ether
- Propane, 1-methyl-1,1'-oxybis
- bis(2-butyl) ether
- bis-(1-methylpropyl) ether
- butane, 2,2'-oxybis-
- sec-butyl ether
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔcH°liquid : Standard liquid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- η : Dynamic viscosity (Pa×s).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfH°liquid : Liquid phase enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (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).
- Pc : Critical Pressure (kPa).
- Ptriple : Triple Point Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- γ : Surface Tension (N/m).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- λgas : Gas thermal conductivity (W/m×K).
- λliquid : Liquid thermal conductivity (W/m×K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (K).
- UQi : UNIQUAC Qi Parameter.
- URi : UNIQUAC Ri Parameter.
- 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 | [0.3290; 0.4100] |
|
|
| ω | 0.3290 | ChemSep v8.3 pure component data Compiled value | |
| ω | 0.4100 | KDB | |
| PAff | 865.90 | kJ/mol | NIST |
| BasG | 838.50 | kJ/mol | NIST |
| ΔcH°liquid | -5319.00 ± 1.00 | kJ/mol | NIST |
| ΔfG° | -115.70 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfH°gas | [-361.00; -360.90] | kJ/mol |
|
| ΔfH°gas | -360.90 | kJ/mol | ChemSep v8.3 pure component data Compiled value |
| ΔfH°gas | -361.00 ± 2.00 | kJ/mol | NIST |
| ΔfH°liquid | -401.60 ± 1.10 | kJ/mol | NIST |
| ΔfusH° | 10.62 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 40.88 | kJ/mol | NIST |
| IE | 9.11 | eV | NIST |
| log10WS | -1.51 | Relay (1.0) Calculated Property | |
| logPoct/wat | 2.600 | Crippen Calculated Property | |
| McVol | 129.450 | ml/mol | McGowan Calculated Property |
| Pc | [2550.00; 2556.00] | kPa |
|
| Pc | 2556.00 | kPa | ChemSep v8.3 pure component data Compiled value |
| Pc | 2550.00 | kPa | KDB |
| Ptriple | 2.79e-06 | kPa | ChemSep v8.3 pure component data Compiled value |
| Inp | [786.00; 786.00] |
|
|
| Inp | 786.00 | NIST | |
| Inp | 786.00 | NIST | |
| Tboil | [394.00; 394.20] | K |
|
| Tboil | 394.20 | K | ChemSep v8.3 pure component data Compiled value |
| Tboil | 394.20 | K | KDB |
| Tboil | 394.00 | K | NIST |
| Tboil | 394.20 | K | NIST |
| Tc | [562.00; 562.00] | K |
|
| Tc | 562.00 | K | ChemSep v8.3 pure component data Compiled value |
| Tc | 562.00 | K | KDB |
| Tfus | [172.00; 173.15] | K |
|
| Tfus | 173.15 | K | Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value |
| Tfus | 173.15 | K | ChemSep v8.3 pure component data Compiled value |
| Tfus | 172.00 | K | KDB |
| Ttriple | 173.15 | K | ChemSep v8.3 pure component data Compiled value |
| UQi | 5.17 | ChemSep v8.3 pure component data Compiled value | |
| URi | 6.09 | ChemSep v8.3 pure component data Compiled value | |
| Vc | [0.487; 0.489] | m3/kmol |
|
| Vc | 0.487 | m3/kmol | ChemSep v8.3 pure component data Compiled value |
| Vc | 0.489 | m3/kmol | KDB |
| Zc | [0.2671280; 0.2690000] |
|
|
| Zc | 0.2690000 | ChemSep v8.3 pure component data Compiled value | |
| Zc | 0.2671280 | KDB | |
| Zra | 0.27 | ChemSep v8.3 pure component data Compiled value |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 34.06 | kJ/mol | 394.20 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [126.68; 492.44] | J/mol×K | [173.15; 1200.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 9.45280e+01 | |||
| Coefficient B | -4.97390e+02 | |||
| Coefficient C | 6.33324e+00 | |||
| Coefficient D | 5.77440e-05 | |||
| Coefficient E | -1.26060e-09 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 1200.00 | |||
| Cp,gas | 126.68 | J/mol×K | 173.15 | Calculated Property |
| Cp,gas | 195.83 | J/mol×K | 287.24 | Calculated Property |
| Cp,gas | 261.34 | J/mol×K | 401.34 | Calculated Property |
| Cp,gas | 315.42 | J/mol×K | 515.43 | Calculated Property |
| Cp,gas | 359.33 | J/mol×K | 629.53 | Calculated Property |
| Cp,gas | 395.38 | J/mol×K | 743.62 | Calculated Property |
| Cp,gas | 425.47 | J/mol×K | 857.72 | Calculated Property |
| Cp,gas | 451.03 | J/mol×K | 971.81 | Calculated Property |
| Cp,gas | 473.11 | J/mol×K | 1085.91 | Calculated Property |
| Cp,gas | 492.44 | J/mol×K | 1200.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,liquid | [264.45; 344.31] | J/mol×K | [300.00; 420.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K | |||
| Coefficient A | 1.02180e+02 | |||
| Coefficient B | -3.75510e+01 | |||
| Coefficient C | 3.69824e+00 | |||
| Coefficient D | 6.49490e-03 | |||
| Coefficient E | -4.80290e-06 | |||
| Temperature range, min. | 300.00 | |||
| Temperature range, max. | 420.00 | |||
| Cp,liquid | 264.45 | J/mol×K | 300.00 | Calculated Property |
| Cp,liquid | 273.23 | J/mol×K | 313.33 | Calculated Property |
| Cp,liquid | 282.09 | J/mol×K | 326.67 | Calculated Property |
| Cp,liquid | 291.01 | J/mol×K | 340.00 | Calculated Property |
| Cp,liquid | 299.97 | J/mol×K | 353.33 | Calculated Property |
| Cp,liquid | 308.94 | J/mol×K | 366.67 | Calculated Property |
| Cp,liquid | 317.89 | J/mol×K | 380.00 | Calculated Property |
| Cp,liquid | 326.79 | J/mol×K | 393.33 | Calculated Property |
| Cp,liquid | 335.61 | J/mol×K | 406.67 | Calculated Property |
| Cp,liquid | 344.31 | J/mol×K | 420.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0139064; 0.0001566] | Pa×s | [173.15; 450.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K | |||
| Coefficient A | -1.03180e+01 | |||
| Coefficient B | 1.23040e+03 | |||
| Coefficient C | -2.09190e-01 | |||
| Coefficient D | 4.94110e-07 | |||
| Coefficient E | 2.00000e+00 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 450.00 | |||
| η | 0.0139064 | Pa×s | 173.15 | Calculated Property |
| η | 0.0046269 | Pa×s | 203.91 | Calculated Property |
| η | 0.0020508 | Pa×s | 234.67 | Calculated Property |
| η | 0.0010968 | Pa×s | 265.43 | Calculated Property |
| η | 0.0006681 | Pa×s | 296.19 | Calculated Property |
| η | 0.0004469 | Pa×s | 326.96 | Calculated Property |
| η | 0.0003206 | Pa×s | 357.72 | Calculated Property |
| η | 0.0002428 | Pa×s | 388.48 | Calculated Property |
| η | 0.0001917 | Pa×s | 419.24 | Calculated Property |
| η | 0.0001566 | Pa×s | 450.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | [48.54; 7.57] | kJ/mol | [173.15; 559.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K | |||
| Coefficient A | 5.59990e+01 | |||
| Coefficient B | 3.43750e-01 | |||
| Coefficient C | 1.89620e-01 | |||
| Coefficient D | -1.47550e-01 | |||
| Coefficient E | -4.09870e-03 | |||
| Critical temperature, Tc (K) | 5.62000e+02 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 559.00 | |||
| ΔvapH | 48.54 | kJ/mol | 173.15 | Calculated Property |
| ΔvapH | 46.24 | kJ/mol | 216.02 | Calculated Property |
| ΔvapH | 43.76 | kJ/mol | 258.89 | Calculated Property |
| ΔvapH | 41.08 | kJ/mol | 301.77 | Calculated Property |
| ΔvapH | 38.17 | kJ/mol | 344.64 | Calculated Property |
| ΔvapH | 34.95 | kJ/mol | 387.51 | Calculated Property |
| ΔvapH | 31.31 | kJ/mol | 430.38 | Calculated Property |
| ΔvapH | 26.94 | kJ/mol | 473.26 | Calculated Property |
| ΔvapH | 21.06 | kJ/mol | 516.13 | Calculated Property |
| ΔvapH | 7.57 | kJ/mol | 559.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.66] | kPa | [295.76; 417.54] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K | |||
| Coefficient A | 1.54197e+01 | |||
| Coefficient B | -3.70770e+03 | |||
| Coefficient C | -5.07380e+01 | |||
| Temperature range, min. | 295.76 | |||
| Temperature range, max. | 417.54 | |||
| Pvap | 1.33 | kPa | 295.76 | Calculated Property |
| Pvap | 2.94 | kPa | 309.29 | Calculated Property |
| Pvap | 6.01 | kPa | 322.82 | Calculated Property |
| Pvap | 11.45 | kPa | 336.35 | Calculated Property |
| Pvap | 20.60 | kPa | 349.88 | Calculated Property |
| Pvap | 35.23 | kPa | 363.42 | Calculated Property |
| Pvap | 57.61 | kPa | 376.95 | Calculated Property |
| Pvap | 90.59 | kPa | 390.48 | Calculated Property |
| Pvap | 137.60 | kPa | 404.01 | Calculated Property |
| Pvap | 202.66 | kPa | 417.54 | Calculated Property |
| Pvap | [2.44e-06; 2451.42] | kPa | [173.15; 560.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K | |||
| Coefficient A | 9.56214e+01 | |||
| Coefficient B | -8.14676e+03 | |||
| Coefficient C | -1.19781e+01 | |||
| Coefficient D | 8.05895e-06 | |||
| Coefficient E | 2.00000e+00 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 560.00 | |||
| Pvap | 2.44e-06 | kPa | 173.15 | Calculated Property |
| Pvap | 2.27e-03 | kPa | 216.13 | Calculated Property |
| Pvap | 0.16 | kPa | 259.12 | Calculated Property |
| Pvap | 2.68 | kPa | 302.10 | Calculated Property |
| Pvap | 19.60 | kPa | 345.08 | Calculated Property |
| Pvap | 84.64 | kPa | 388.07 | Calculated Property |
| Pvap | 259.13 | kPa | 431.05 | Calculated Property |
| Pvap | 630.20 | kPa | 474.03 | Calculated Property |
| Pvap | 1310.90 | kPa | 517.02 | Calculated Property |
| Pvap | 2451.42 | kPa | 560.00 | Calculated Property |
| Pvap | [2.72e-06; 2397.72] | kPa | [173.15; 559.00] |
KDB Vapor Pressure Data
|
| Equation | ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K | |||
| Coefficient A | 8.78094e+01 | |||
| Coefficient B | -7.85694e+03 | |||
| Coefficient C | -1.07579e+01 | |||
| Coefficient D | 6.67024e-06 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 559.00 | |||
| Pvap | 2.72e-06 | kPa | 173.15 | Calculated Property |
| Pvap | 2.29e-03 | kPa | 216.02 | Calculated Property |
| Pvap | 0.15 | kPa | 258.89 | Calculated Property |
| Pvap | 2.60 | kPa | 301.77 | Calculated Property |
| Pvap | 19.13 | kPa | 344.64 | Calculated Property |
| Pvap | 83.20 | kPa | 387.51 | Calculated Property |
| Pvap | 256.22 | kPa | 430.38 | Calculated Property |
| Pvap | 624.33 | kPa | 473.26 | Calculated Property |
| Pvap | 1294.32 | kPa | 516.13 | Calculated Property |
| Pvap | 2397.72 | kPa | 559.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ρl | [852.49; 282.82] | kg/m3 | [173.15; 559.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K | |||
| Coefficient A | 4.96624e+00 | |||
| Coefficient B | 7.21550e-02 | |||
| Coefficient C | 5.62000e+02 | |||
| Coefficient D | 1.18620e-01 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 559.00 | |||
| ρl | 852.49 | kg/m3 | 173.15 | Calculated Property |
| ρl | 823.47 | kg/m3 | 216.02 | Calculated Property |
| ρl | 792.25 | kg/m3 | 258.89 | Calculated Property |
| ρl | 758.30 | kg/m3 | 301.77 | Calculated Property |
| ρl | 720.82 | kg/m3 | 344.64 | Calculated Property |
| ρl | 678.56 | kg/m3 | 387.51 | Calculated Property |
| ρl | 629.35 | kg/m3 | 430.38 | Calculated Property |
| ρl | 568.85 | kg/m3 | 473.26 | Calculated Property |
| ρl | 485.21 | kg/m3 | 516.13 | Calculated Property |
| ρl | 282.82 | kg/m3 | 559.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| γ | [0.03; 1.52e-05] | N/m | [173.15; 557.84] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K | |||
| Coefficient A | -1.00660e-02 | |||
| Coefficient B | 4.39920e+01 | |||
| Coefficient C | -3.34610e+00 | |||
| Coefficient D | 6.23540e-04 | |||
| Coefficient E | -5.39120e-06 | |||
| Comment | Range stopped where the equation turns negative; ChemSep gives it to 559 K. | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 557.84 | |||
| γ | 0.03 | N/m | 173.15 | Calculated Property |
| γ | 0.03 | N/m | 215.89 | Calculated Property |
| γ | 0.02 | N/m | 258.64 | Calculated Property |
| γ | 0.02 | N/m | 301.38 | Calculated Property |
| γ | 0.02 | N/m | 344.12 | Calculated Property |
| γ | 0.01 | N/m | 386.87 | Calculated Property |
| γ | 0.01 | N/m | 429.61 | Calculated Property |
| γ | 0.01 | N/m | 472.36 | Calculated Property |
| γ | 0.00 | N/m | 515.10 | Calculated Property |
| γ | 1.52e-05 | N/m | 557.84 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λgas | [0.00; 0.08] | W/m×K | [173.15; 1000.00] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A·T^B / (1 + C/T + D/T²) Y is λgas in W/m×K, T in K | |||
| Coefficient A | 1.67490e-04 | |||
| Coefficient B | 9.61010e-01 | |||
| Coefficient C | 6.56840e+02 | |||
| Coefficient D | -6.91700e+02 | |||
| Temperature range, min. | 173.15 | |||
| Temperature range, max. | 1000.00 | |||
| λgas | 0.00 | W/m×K | 173.15 | Calculated Property |
| λgas | 0.01 | W/m×K | 265.02 | Calculated Property |
| λgas | 0.02 | W/m×K | 356.89 | Calculated Property |
| λgas | 0.02 | W/m×K | 448.77 | Calculated Property |
| λgas | 0.03 | W/m×K | 540.64 | Calculated Property |
| λgas | 0.04 | W/m×K | 632.51 | Calculated Property |
| λgas | 0.05 | W/m×K | 724.38 | Calculated Property |
| λgas | 0.06 | W/m×K | 816.26 | Calculated Property |
| λgas | 0.07 | W/m×K | 908.13 | Calculated Property |
| λgas | 0.08 | W/m×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| λliquid | [0.14; 0.08] | W/m×K | [167.70; 453.15] |
ChemSep v8.3 pure component data Compiled value
|
| Equation | Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K | |||
| Coefficient A | 2.74990e-02 | |||
| Coefficient B | 2.76040e+01 | |||
| Coefficient C | -2.27540e+00 | |||
| Coefficient D | 3.21050e-04 | |||
| Coefficient E | -4.44060e-06 | |||
| Temperature range, min. | 167.70 | |||
| Temperature range, max. | 453.15 | |||
| λliquid | 0.14 | W/m×K | 167.70 | Calculated Property |
| λliquid | 0.13 | W/m×K | 199.42 | Calculated Property |
| λliquid | 0.13 | W/m×K | 231.13 | Calculated Property |
| λliquid | 0.12 | W/m×K | 262.85 | Calculated Property |
| λliquid | 0.11 | W/m×K | 294.57 | Calculated Property |
| λliquid | 0.10 | W/m×K | 326.28 | Calculated Property |
| λliquid | 0.10 | W/m×K | 358.00 | Calculated Property |
| λliquid | 0.09 | W/m×K | 389.72 | Calculated Property |
| λliquid | 0.08 | W/m×K | 421.43 | Calculated Property |
| λliquid | 0.08 | W/m×K | 453.15 | Calculated Property |
Similar Compounds
Find more compounds similar to Di-sec-Butyl ether.
Mixtures
- Water + Di-sec-Butyl ether
- Methyl Alcohol + Water + Di-sec-Butyl ether
- Ethanol + Water + Di-sec-Butyl ether
Sources
- KDB Vapor Pressure Data
- Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
- Cheméo Relay (1.0)
- ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
- Crippen Method
- Crippen Method
- Liquid liquid equilibria for binary systems of tert-amyl ethyl ether (TAEE), isopropyl tert-butyl ether (IPTBE) and di-sec-butyl ether (DSBE) with water and for ternary systems with methanol or ethanol
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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