- InChI
- InChI=1S/CH2O/c1-2/h1H2
- InChI Key
- WSFSSNUMVMOOMR-UHFFFAOYSA-N
- Formula
- CH2O
- SMILES
- C=O
- Molecular Weight1
- 30.03
- CAS
- 50-00-0
- Other Names
-
- Aldehyd mravenci
- Aldehyde formique
- Aldeide formica
- BFV
- CH2O
- Durine
- FANNOFORM
- Fordor
- Formaldehyd
- Formaldehyde, gas
- Formalin
- Formalin 40
- Formalin-loesungen
- Formalina
- Formaline
- Formalith
- Formic aldehyde
- Formol
- Fyde
- H2CO
- Hercules 37M6-8
- Karsan
- Lysoform
- METHANAL
- Methaldehyde
- Methyl aldehyde
- Methylene oxide
- Morbicid
- NCI-C02799
- NSC 298885
- Oplossingen
- Oxomethane
- Oxymethylene
- Paraform
- Rcra waste number U122
- Superlysoform
- UN 1198
- UN 2209
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔcH°gas : Standard gas enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- μ : Dipole Moment (debye).
- 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°(+) ion : Enthalpy of formation of positive ion at standard conditions (kJ/mol).
- ΔfH(+) ion,0K : Enthalpy of formation of positive ion at 0K (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).
- NFPA Fire : NFPA Fire Rating.
- NFPA Health : NFPA Health Rating.
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Inp : Non-polar retention indices.
- 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 | 0.2530 | KDB | |
| PAff | [711.50; 712.90] | kJ/mol |
|
| PAff | 712.90 | kJ/mol | NIST |
| PAff | 711.50 ± 2.10 | kJ/mol | NIST |
| BasG | [681.50; 683.30] | kJ/mol |
|
| BasG | 683.30 | kJ/mol | NIST |
| BasG | 681.50 ± 0.70 | kJ/mol | NIST |
| ΔcH°gas | [-570.78; -561.10] | kJ/mol |
|
| ΔcH°gas | -570.78 ± 0.42 | kJ/mol | NIST |
| ΔcH°gas | -561.10 | kJ/mol | NIST |
| μ | 2.30 | debye | KDB |
| ΔfG° | -110.00 | kJ/mol | KDB |
| ΔfH°gas | [-116.00; -108.60] | kJ/mol |
|
| ΔfH°gas | -116.00 | kJ/mol | KDB |
| ΔfH°gas | -108.60 ± 0.46 | kJ/mol | NIST |
| ΔfH°(+) ion | 941.80 | kJ/mol | NIST |
| ΔfH(+) ion,0K | 946.00 | kJ/mol | NIST |
| ΔfusH° | 2.32 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 24.39 | kJ/mol | Joback Calculated Property |
| IE | [10.10; 10.90] | eV |
|
| IE | 10.88 ± 0.01 | eV | NIST |
| IE | 10.88 | eV | NIST |
| IE | 10.89 ± 0.00 | eV | NIST |
| IE | 10.86 | eV | NIST |
| IE | 10.88 | eV | NIST |
| IE | 10.90 | eV | NIST |
| IE | 10.88 ± 0.01 | eV | NIST |
| IE | 10.87 ± 0.00 | eV | NIST |
| IE | 10.87 ± 0.01 | eV | NIST |
| IE | 10.88 ± 0.02 | eV | NIST |
| IE | 10.87 ± 0.01 | eV | NIST |
| IE | 10.88 ± 0.02 | eV | NIST |
| IE | 10.88 | eV | NIST |
| IE | 10.86 ± 0.02 | eV | NIST |
| IE | 10.90 ± 0.03 | eV | NIST |
| IE | 10.87 ± 0.01 | eV | NIST |
| IE | 10.88 ± 0.01 | eV | NIST |
| IE | Outlier 10.10 | eV | NIST |
| log10WS | 0.48 | Crippen Calculated Property | |
| logPoct/wat | -0.185 | Crippen Calculated Property | |
| McVol | 26.520 | ml/mol | McGowan Calculated Property |
| NFPA Fire | 4 | KDB | |
| NFPA Health | 2 | KDB | |
| Pc | 6590.00 | kPa | KDB |
| Inp | [229.00; 284.00] |
|
|
| Inp | 284.00 | NIST | |
| Inp | 229.00 | NIST | |
| Inp | 249.00 | NIST | |
| Inp | 273.00 | NIST | |
| Inp | 247.00 | NIST | |
| Inp | 247.00 | NIST | |
| Inp | 284.00 | NIST | |
| Inp | 273.00 | NIST | |
| Tboil | [253.85; 254.05] | K |
|
| Tboil | 254.00 | K | KDB |
| Tboil | 254.05 ± 0.50 | K | NIST |
| Tboil | 253.85 ± 0.20 | K | NIST |
| Tc | 408.00 | K | KDB |
| Tfus | [156.00; 181.00] | K |
|
| Tfus | 156.00 | K | KDB |
| Tfus | 156.15 ± 1.00 | K | NIST |
| Tfus | 181.00 ± 4.00 | K | NIST |
| Tfus | 181.00 ± 6.00 | K | NIST |
| Ttriple | 155.10 ± 0.30 | K | NIST |
| Vc | 0.115 | m3/kmol | KDB |
| Zc | 0.2234020 | KDB |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [25.89; 34.87] | J/mol×K | [270.24; 436.48] |
|
|
T(K) Ideal gas heat capacity (J/mol×K) 26 28 30 32 34 300 350 400 | ||||
| Cp,gas | 25.89 | J/mol×K | 270.24 | Joback Calculated Property |
| Cp,gas | 27.86 | J/mol×K | 297.95 | Joback Calculated Property |
| Cp,gas | 29.62 | J/mol×K | 325.65 | Joback Calculated Property |
| Cp,gas | 31.19 | J/mol×K | 353.36 | Joback Calculated Property |
| Cp,gas | 32.58 | J/mol×K | 381.07 | Joback Calculated Property |
| Cp,gas | 33.80 | J/mol×K | 408.77 | Joback Calculated Property |
| Cp,gas | 34.87 | J/mol×K | 436.48 | Joback Calculated Property |
| η | [0.0001255; 0.0001813] | Pa×s | [159.40; 270.24] |
|
|
T(K) Dynamic viscosity (Pa×s) 1.20e-4 1.30e-4 1.40e-4 1.50e-4 1.60e-4 1.70e-4 1.80e-4 200 250 | ||||
| η | 0.0001813 | Pa×s | 159.40 | Joback Calculated Property |
| η | 0.0001652 | Pa×s | 177.87 | Joback Calculated Property |
| η | 0.0001531 | Pa×s | 196.35 | Joback Calculated Property |
| η | 0.0001438 | Pa×s | 214.82 | Joback Calculated Property |
| η | 0.0001365 | Pa×s | 233.29 | Joback Calculated Property |
| η | 0.0001304 | Pa×s | 251.77 | Joback Calculated Property |
| η | 0.0001255 | Pa×s | 270.24 | Joback Calculated Property |
| ΔfusH | 7.53 | kJ/mol | 155.00 | NIST |
| ΔvapH | [23.01; 24.30] | kJ/mol | [212.00; 249.60] |
|
| ΔvapH | 24.20 | kJ/mol | 212.00 | NIST |
| ΔvapH | 24.30 | kJ/mol | 217.50 | NIST |
| ΔvapH | 23.01 | kJ/mol | 249.60 | KDB |
| ρl | 815.00 | kg/m3 | 253.00 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [0.85; 347.51] | kPa | [181.15; 270.59] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.67699e+01 | |||
| Coefficient B | -2.74961e+03 | |||
| Coefficient C | -1.87730e+01 | |||
| Temperature range, min. | 181.15 | |||
| Temperature range, max. | 270.59 | |||
|
T(K) Vapor pressure (kPa) 0 50 100 150 200 250 300 350 200 250 | ||||
| Pvap | 0.85 | kPa | 181.15 | Calculated Property |
| Pvap | 2.25 | kPa | 191.09 | Calculated Property |
| Pvap | 5.38 | kPa | 201.03 | Calculated Property |
| Pvap | 11.74 | kPa | 210.96 | Calculated Property |
| Pvap | 23.73 | kPa | 220.90 | Calculated Property |
| Pvap | 44.88 | kPa | 230.84 | Calculated Property |
| Pvap | 80.19 | kPa | 240.78 | Calculated Property |
| Pvap | 136.34 | kPa | 250.71 | Calculated Property |
| Pvap | 221.89 | kPa | 260.65 | Calculated Property |
| Pvap | 347.51 | kPa | 270.59 | Calculated Property |
Similar Compounds
Find more compounds similar to Formaldehyde.
Mixtures
- Formaldehyde + Water
- Formaldehyde + Methyl Alcohol + Water
- Propanamide, N,N-bis(2-ethylhexyl)-2-methyl- + Formaldehyde
- Formaldehyde + Ethanol, 2,2'-oxybis- + Water
- 2-Butyne-1,4-diol + Formaldehyde + Water
- Formaldehyde + 1,3,5-Trioxane + Water
- 1,3-Dioxolane + Formaldehyde + Water
Sources
- Crippen Method
- Crippen Method
- Liquid-liquid equilibrium in binary and ternary mixtures containing formaldehyde, water, methanol, methylal, and poly(oxymethylene) dimethyl ethers
- Density, excess molar volume, and COSMO-RS study of reactive aqueous solutions containing formaldehyde
- Vapor-liquid equilibrium of mixtures containing formaldehyde, water, and butynediol
- Activity coefficients at infinite dilution of organic solutes in methylphosphonate based ionic liquids using gas-liquid chromatography
- Determination of Activity Coefficients at Infinite Dilution of Solutes in N,N'-Di(2-ethylhexyl)isobutyramide Using Inverse Gas-Liquid Chromatography
- Solubility of Formaldehyde and Trioxane in Aqueous Solutions
- New Experimental Results for the Vapor-Liquid Equilibrium of the Binary System (Trioxane + Water) and the Ternary System (Formaldehyde + Trioxane + Water)
- Activity Coefficients at Infinite Dilution of Organic Compounds in Four New Imidazolium-Based Ionic Liquids
- Partition Coefficients of Organic Compounds in Four New Tetraalkylammonium Bis(trifluoromethylsulfonyl)imide Ionic Liquids Using Inverse Gas Chromatography
- Evaluation of the Performance of Trigeminal Tricationic Ionic Liquids for Separation Problems
- Isobaric Vapor Liquid Equilibrium for the Ternary System (Formaldehyde + 1,3-Dioxolane + Water) at 101.3 kPa
- Activity Coefficients at Infinite Dilution of Organic Compounds in 1-Butyl-3-methylimidazolium Tetrafluoroborate Using Inverse Gas Chromatography
- Activity Coefficients at Infinite Dilution of Organic Compounds in Trihexyl(tetradecyl)phosphonium Bis(trifluoromethylsulfonyl)imide Using Inverse Gas Chromatography
- Partition Coefficients of Organic Compounds in New Imidazolium and Tetralkylammonium Based Ionic Liquids Using Inverse Gas Chromatography
- Study of Ether-, Alcohol-, or Cyano-Functionalized Ionic Liquids Using Inverse Gas Chromatography
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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