- InChI
- InChI=1S/C4H10O3/c1-5-4(6-2)7-3/h4H,1-3H3
- InChI Key
- PYOKUURKVVELLB-UHFFFAOYSA-N
- Formula
- C4H10O3
- SMILES
- COC(OC)OC
- Molecular Weight1
- 106.12
- Other Names
-
- CH(OCH3)3
- Methane, trimethoxy-
- Methoxymethylal
- Methyl orthoformate
- Methylester kyseliny orthomravenci
- NSC 147479
- Orthoformic acid methyl ester
- Orthoformic acid, trimethyl ester
- Orthomravencan methylnaty
- Trimethoxymethane
- Trimethyl orthoformate
- Trimethylester kyseliny orthomravenci
- ω : Acentric Factor.
- ΔcH°liquid : Standard liquid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas 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).
- Inp : Non-polar retention indices.
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.3404 | Relay (1.0) Calculated Property | |
| ΔcH°liquid | -2427.80 ± 2.00 | kJ/mol | NIST |
| ΔfG° | -334.64 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | [-531.90; -531.80] | kJ/mol |
|
| ΔfH°gas | -531.80 ± 3.20 | kJ/mol | NIST |
| ΔfH°gas | -531.90 ± 2.60 | kJ/mol | NIST |
| ΔfH°liquid | [-575.30; -568.86] | kJ/mol |
|
| ΔfH°liquid | -568.86 ± 0.88 | kJ/mol | NIST |
| ΔfH°liquid | -575.30 ± 2.00 | kJ/mol | NIST |
| ΔfusH° | 6.16 | kJ/mol | Joback Calculated Property |
| ΔvapH° | [37.10; 43.40] | kJ/mol |
|
| ΔvapH° | 38.20 | kJ/mol | NIST |
| ΔvapH° | 37.10 | kJ/mol | NIST |
| ΔvapH° | 38.10 ± 0.84 | kJ/mol | NIST |
| ΔvapH° | 43.40 | kJ/mol | NIST |
| ΔvapH° | 38.10 ± 0.80 | kJ/mol | NIST |
| IE | [9.50; 10.24] | eV |
|
| IE | 9.50 | eV | NIST |
| IE | 9.50 | eV | NIST |
| IE | 9.50 | eV | NIST |
| IE | 10.24 ± 0.07 | eV | NIST |
| log10WS | 0.28 | Relay (1.0) Calculated Property | |
| logPoct/wat | 0.209 | Crippen Calculated Property | |
| McVol | 84.830 | ml/mol | McGowan Calculated Property |
| Pc | 3695.46 | kPa | Joback Calculated Property |
| Inp | [654.00; 702.00] |
|
|
| Inp | 654.00 | NIST | |
| Inp | 660.00 | NIST | |
| Inp | 702.00 | NIST | |
| Inp | 654.00 | NIST | |
| Tboil | [374.70; 377.20] | K |
|
| Tboil | 374.70 | K | NIST |
| Tboil | 377.20 | K | NIST |
| Tc | 527.78 | K | Relay (1.0) Calculated Property |
| Tfus | 254.15 | K | Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value |
Cheméo can also estimate Critical Volume for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| ΔvapH | 39.00 | kJ/mol | 315.50 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [136.24; 281.73] | J/mol×K | [273.00; 1000.00] |
Joback Predicted correlation
|
| Equation | Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is Cp,gas in J/mol×K, T in K | |||
| Coefficient A | 7.40700e+01 | |||
| Coefficient B | 2.00160e-01 | |||
| Coefficient C | 1.36000e-04 | |||
| Coefficient D | -1.28500e-07 | |||
| Coefficient E | 0.00000e+00 | |||
| Temperature range, min. | 273.00 | |||
| Temperature range, max. | 1000.00 | |||
| Cp,gas | 136.24 | J/mol×K | 273.00 | Calculated Property |
| Cp,gas | 156.21 | J/mol×K | 353.78 | Calculated Property |
| Cp,gas | 176.19 | J/mol×K | 434.56 | Calculated Property |
| Cp,gas | 195.75 | J/mol×K | 515.33 | Calculated Property |
| Cp,gas | 214.50 | J/mol×K | 596.11 | Calculated Property |
| Cp,gas | 232.02 | J/mol×K | 676.89 | Calculated Property |
| Cp,gas | 247.91 | J/mol×K | 757.67 | Calculated Property |
| Cp,gas | 261.76 | J/mol×K | 838.44 | Calculated Property |
| Cp,gas | 273.17 | J/mol×K | 919.22 | Calculated Property |
| Cp,gas | 281.73 | J/mol×K | 1000.00 | Calculated Property |
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| η | [0.0006286; 0.0001640] | Pa×s | [254.15; 369.89] |
Joback Predicted correlation
|
| Equation | Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K | |||
| Coefficient A | -1.16654e+01 | |||
| Coefficient B | 1.09117e+03 | |||
| Coefficient C | 0.00000e+00 | |||
| Coefficient D | 0.00000e+00 | |||
| Coefficient E | 0.00000e+00 | |||
| Comment | Liquid phase. Joback/Reid (1987), valid from Tf to 0.7·Tc. | |||
| Temperature range, min. | 254.15 | |||
| Temperature range, max. | 369.89 | |||
| η | 0.0006286 | Pa×s | 254.15 | Calculated Property |
| η | 0.0005112 | Pa×s | 267.01 | Calculated Property |
| η | 0.0004237 | Pa×s | 279.87 | Calculated Property |
| η | 0.0003570 | Pa×s | 292.73 | Calculated Property |
| η | 0.0003051 | Pa×s | 305.59 | Calculated Property |
| η | 0.0002642 | Pa×s | 318.45 | Calculated Property |
| η | 0.0002313 | Pa×s | 331.31 | Calculated Property |
| η | 0.0002045 | Pa×s | 344.17 | Calculated Property |
| η | 0.0001824 | Pa×s | 357.03 | Calculated Property |
| η | 0.0001640 | Pa×s | 369.89 | Calculated Property |
Similar Compounds
Find more compounds similar to Trimethyl orthformate.
Sources
- 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)
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
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