- InChI
- InChI=1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3
- InChI Key
- NKDDWNXOKDWJAK-UHFFFAOYSA-N
- Formula
- C3H8O2
- SMILES
- COCOC
- Molecular Weight1
- 76.09
- CAS
- 109-87-5
- Other Names
-
- (CH3O)2CH2
- 2,4-Dioxapentane
- Anesthenyl
- Bis(methoxy)methane
- Dimethoxymethane
- Dimethyl formal
- Dimethylacetal formaldehyde
- Formal
- Formaldehyde dimethyl acetal
- Formaldehyde methyl ketal
- Methane, dimethoxy-
- Methoxymethyl methyl ether
- Methylene dimethyl ether
- Methylene glycol dimethylether
- Methylenedioxydimethane
- Metylal
- UN 1234
- formaldehyde, dimethyl acetal
- methanal, dimethyl acetal
- ω : Acentric Factor.
- ΔcH°gas : Standard gas 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).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔfusH : Enthalpy of fusion 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).
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρc : Critical density (kg/m3).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- I : Polar retention indices.
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- S°gas : Molar entropy at standard conditions (J/mol×K).
- S°liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
- γ : Surface Tension (N/m).
- 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).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.3199 | Relay (1.0) Calculated Property | |
| ΔcH°gas | -1975.70 ± 0.75 | kJ/mol | NIST |
| ΔfG° | -235.62 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -348.20 ± 0.79 | kJ/mol | NIST |
| ΔfusH° | 5.90 | kJ/mol | Joback Calculated Property |
| ΔvapH° | [28.89; 29.60] | kJ/mol |
|
| ΔvapH° | 29.60 | kJ/mol | NIST |
| ΔvapH° | 28.89 ± 0.21 | kJ/mol | NIST |
| IE | [9.70; 10.42] | eV |
|
| IE | 9.70 | eV | NIST |
| IE | 10.00 ± 0.05 | eV | NIST |
| IE | 10.42 | eV | NIST |
| IE | 10.20 | eV | NIST |
| IE | 10.29 | eV | NIST |
| log10WS | [0.48; 0.48] |
|
|
| log10WS | 0.48 | Aq. Solubility Prediction | |
| log10WS | 0.48 | Estimated Solubility | |
| logPoct/wat | 0.237 | Crippen Calculated Property | |
| McVol | 64.870 | ml/mol | McGowan Calculated Property |
| Pc | 3950.00 ± 70.92 | kPa | NIST |
| ρc | 356.88 ± 29.68 | kg/m3 | NIST |
| Inp | [500.00; 511.00] |
|
|
| Inp | 500.00 | NIST | |
| Inp | 511.00 | NIST | |
| Inp | 508.00 | NIST | |
| Inp | 508.00 | NIST | |
| Inp | 505.00 | NIST | |
| Inp | 505.00 | NIST | |
| I | 740.00 | NIST | |
| S°gas | 335.72 ± 0.62 | J/mol×K | NIST |
| S°liquid | 244.01 | J/mol×K | NIST |
| Tboil | 315.25 | K | Vapor-Liquid Equilibria for the Binary Systems of Dimethoxymethane with Some Fuel Oxygenates |
| Tc | [480.60; 496.80] | K |
|
| Tc | 480.60 ± 1.00 | K | NIST |
| Tc | 488.40 ± 6.00 | K | NIST |
| Tc | 496.80 ± 10.00 | K | NIST |
| Tfus | [168.00; 168.35] | K |
|
| Tfus | 168.20 | K | Aq. Solubility Prediction |
| Tfus | 168.00 ± 2.00 | K | NIST |
| Tfus | 168.35 ± 0.50 | K | NIST |
| Tfus | 168.15 ± 0.40 | K | NIST |
| Tfus | 168.35 ± 0.30 | K | NIST |
| Ttriple | [168.01; 168.03] | K |
|
| Ttriple | 168.03 ± 0.05 | K | NIST |
| Ttriple | 168.01 ± 0.02 | K | NIST |
| Vc | 0.235 | m3/kmol | Relay (1.0) Calculated Property |
Temperature Dependent Properties
Datasets
Viscosity, Pa*s
| Fixed | Measured | |
|---|---|---|
| Temperature, K - Liquid | Pressure, kPa - Liquid | Viscosity, Pa*s - Liquid |
| 243.15 | 100.00 | 0.0006 |
| 243.15 | 4400.00 | 0.0007 |
| 243.15 | 9420.00 | 0.0007 |
| 243.15 | 14450.00 | 0.0007 |
| 243.15 | 19440.00 | 0.0007 |
| 253.15 | 100.00 | 0.0005 |
| 253.15 | 4420.00 | 0.0006 |
| 253.15 | 9410.00 | 0.0006 |
| 253.15 | 14450.00 | 0.0006 |
| 253.15 | 19440.00 | 0.0006 |
| 263.15 | 100.00 | 0.0005 |
| 263.15 | 4440.00 | 0.0005 |
| 263.15 | 9440.00 | 0.0005 |
| 263.15 | 14470.00 | 0.0005 |
| 263.15 | 19470.00 | 0.0005 |
| 273.15 | 100.00 | 0.0004 |
| 273.15 | 4440.00 | 0.0004 |
| 273.15 | 9440.00 | 0.0004 |
| 273.15 | 14480.00 | 0.0005 |
| 273.15 | 19540.00 | 0.0005 |
| 283.15 | 100.00 | 0.0004 |
| 283.15 | 4450.00 | 0.0004 |
| 283.15 | 9430.00 | 0.0004 |
| 283.15 | 14490.00 | 0.0004 |
| 283.15 | 19550.00 | 0.0004 |
| 293.15 | 100.00 | 0.0003 |
| 293.15 | 4410.00 | 0.0003 |
| 293.15 | 9460.00 | 0.0004 |
| 293.15 | 14490.00 | 0.0004 |
| 293.15 | 19550.00 | 0.0004 |
| 303.15 | 100.00 | 0.0003 |
| 303.15 | 4450.00 | 0.0003 |
| 303.15 | 9450.00 | 0.0003 |
| 303.15 | 14490.00 | 0.0003 |
| 303.15 | 19550.00 | 0.0003 |
| 313.15 | 160.00 | 0.0003 |
| 313.15 | 4440.00 | 0.0003 |
| 313.15 | 9420.00 | 0.0003 |
| 313.15 | 14450.00 | 0.0003 |
| 313.15 | 19440.00 | 0.0003 |
| 323.15 | 190.00 | 0.0002 |
| 323.15 | 4390.00 | 0.0003 |
| 323.15 | 9420.00 | 0.0003 |
| 323.15 | 14460.00 | 0.0003 |
| 323.15 | 19490.00 | 0.0003 |
| 333.15 | 210.00 | 0.0002 |
| 333.15 | 4390.00 | 0.0002 |
| 333.15 | 9410.00 | 0.0002 |
| 333.15 | 14450.00 | 0.0003 |
| 333.15 | 19450.00 | 0.0003 |
| 343.15 | 280.00 | 0.0002 |
| 343.15 | 4430.00 | 0.0002 |
| 343.15 | 9430.00 | 0.0002 |
| 343.15 | 14460.00 | 0.0002 |
| 343.15 | 19460.00 | 0.0002 |
| 353.15 | 360.00 | 0.0002 |
| 353.15 | 4370.00 | 0.0002 |
| 353.15 | 9400.00 | 0.0002 |
| 353.15 | 14450.00 | 0.0002 |
| 353.15 | 19430.00 | 0.0002 |
| 363.15 | 430.00 | 0.0002 |
| 363.15 | 4400.00 | 0.0002 |
| 363.15 | 9410.00 | 0.0002 |
| 363.15 | 14450.00 | 0.0002 |
| 363.15 | 19460.00 | 0.0002 |
| 373.15 | 550.00 | 0.0002 |
| 373.15 | 4370.00 | 0.0002 |
| 373.15 | 9400.00 | 0.0002 |
| 373.15 | 14450.00 | 0.0002 |
| 373.15 | 19480.00 | 0.0002 |
| Reference | ||
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.93e-03; 3888.46] | kPa | [168.35; 480.60] |
KDB Vapor Pressure Data
|
| Equation | ln(Pvp) = A + B/T + C*ln(T) + D*T^2 | |||
| Coefficient A | 6.23348e+01 | |||
| Coefficient B | -5.39408e+03 | |||
| Coefficient C | -7.16190e+00 | |||
| Coefficient D | 5.97290e-06 | |||
| Temperature range, min. | 168.35 | |||
| Temperature range, max. | 480.60 | |||
| Pvap | 1.93e-03 | kPa | 168.35 | Calculated Property |
| Pvap | 0.13 | kPa | 203.04 | Calculated Property |
| Pvap | 2.22 | kPa | 237.74 | Calculated Property |
| Pvap | 16.76 | kPa | 272.43 | Calculated Property |
| Pvap | 74.97 | kPa | 307.13 | Calculated Property |
| Pvap | 236.92 | kPa | 341.82 | Calculated Property |
| Pvap | 588.93 | kPa | 376.52 | Calculated Property |
| Pvap | 1235.20 | kPa | 411.21 | Calculated Property |
| Pvap | 2291.87 | kPa | 445.91 | Calculated Property |
| Pvap | 3888.46 | kPa | 480.60 | Calculated Property |
Similar Compounds
Find more compounds similar to Methylal.
Mixtures
- Methylal + Pentane, 2,2,4-trimethyl-
- Methyl formate + Methylal
- Carbonic acid, dimethyl ester + Methylal
- Methylal + Propane, 2-methoxy-2-methyl-
- Diisopropyl ether + Methylal
- Isopropyl Alcohol + Methylal
- n-Hexane + Methylal
- Methylal + Cyclohexane
- Benzene + Methylal
- Methylal + Water
- Methylal + Methyl Alcohol
- 1,2-Ethanediol + Methylal + Methyl Alcohol
- Methylal + Ethanol, 2,2'-oxybis- + Water
- p-Xylene + Methylal + Water
- Methylal + Cyclohexane + Water
- Methylal + Heptane + Water
- 2-Pentanol, 4-methyl- + Methylal + Water
- Methylal + o-Xylene + Water
- sodium formate + Methylal + Water
- sodium hydroxide + Methylal + Water
Find more mixtures with Methylal.
Sources
- KDB Pure (Korean Thermophysical Properties Databank)
- KDB Vapor Pressure Data
- Cheméo Relay (1.0)
- Crippen Method
- Density and Viscosity Measurements of Dimethoxymethane and 1,2-Dimethoxyethane from 243 K to 373 K up to 20 MPa
- Phase equilibria for binary systems of octane boosters with 2,2,4-trimethylpentane
- Temperature dependence of limiting activity coefficients and Henry s law constants of cyclic and open-chain ethers in water
- Isobaric vapor-liquid equilibria for binary mixtures from methyl methanoate, dimethoxymethane and dimethyl carbonate at 101.33 kPa
- Liquid-liquid equilibrium in binary and ternary mixtures containing formaldehyde, water, methanol, methylal, and poly(oxymethylene) dimethyl ethers
- Extractive distillation of methylal/methanol mixture using ethylene glycol as entrainer
- Liquid-liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water
- Extraction of Low Concentration Aqueous Solution of Methylal: Liquid Liquid Equilibrium in Water + Methylal + (Cyclohexane and n-Heptane) Ternary Systems
- Measurement and Thermodynamic Models for Ternary Liquid-Liquid Equilibrium Systems {Water + Polyoxymethylene Dimethyl Ethers +4-Methyl-2-pentanol} at Different Temperatures
- Liquid-Liquid Equilibrium for Ternary Systems of Polyoxymethylene Dimethyl Ethers + o-Xylene + Water at 293.15 K
- Salting Effect of Sodium Hydroxide and Sodium Formate on the Liquid-Liquid Equilibrium of Polyoxymethylene Dimethyl Ethers in Aqueous Solution
- Experimental and Correlated Liquid-Liquid Equilibrium Data for Ternary Systems (Water + Poly(oxymethylene) Dimethyl Ethers + Toluene) at T = 293.15 and 303.15 K and p = 101.3 kPa
- Vapor-Liquid Equilibria for the Binary Systems of Dimethoxymethane with Some Fuel Oxygenates
- Density and Viscosity of Saturated Liquid Dimethoxymethane from (218.15 to 383.15) K
- Vapor-Liquid Equilibria and Excess Enthalpies for Binary Systems of Dimethoxymethane with Hydrocarbons
- Vapor Pressure of Dimethoxymethane and 1,1,1,3,3-Pentafluoropropane
- Surface Tension of Dimethoxymethane and Methyl tert-Butyl Ether
- Joback Method
- KDB
- Aqueous Solubility Prediction Method
- Estimated Solubility Method
- McGowan Method
- NIST Webbook
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.