Propionaldehyde

Not to be confused with propanol.
Propionaldehyde
Skeletal formula of propionaldehyde (propanal)
Skeletal formula of propionaldehyde (propanal)
Flat structure
Flat structure
Ball-and-stick model
Names
IUPAC name
Propionaldehyde
Preferred IUPAC name
Propanal
Other names
  • Methylacetaldehyde
  • Propionic aldehyde
  • Propaldehyde
  • Propan-1-one
Identifiers
3D model (JSmol)
3DMet
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.004.204 Edit this at Wikidata
EC Number
  • 204-623-0
KEGG
RTECS number
  • UE0350000
UNII
UN number 1275
  • InChI=1S/C3H6O/c1-2-3-4/h3H,2H2,1H3 checkY
    Key: NBBJYMSMWIIQGU-UHFFFAOYSA-N checkY
  • CCC=O
Properties
C3H6O
Molar mass 58.080 g·mol−1
Appearance Colourless liquid
Odor Pungent and fruity
Density 0.81 g cm−3
Melting point −81 °C (−114 °F; 192 K)
Boiling point 46 to 50 °C (115 to 122 °F; 319 to 323 K)
20 g/100 mL
-34.32·10−6 cm3/mol
Viscosity 0.6 cP at 20 °C
Structure
C1, O: sp2

C2, C3: sp3

2.52 D
Hazards
GHS labelling:
GHS02: Flammable GHS05: Corrosive GHS07: Exclamation mark
Danger
H225, H302, H315, H318, H332, H335[1]
P210, P261, P280, P304+P340+P312, P305+P351+P338, P310, P403+P235[1]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazards (white): no code
2
3
2
Flash point −26 °C (−15 °F; 247 K)
175 °C (347 °F; 448 K)
Related compounds
Related aldehydes
 Acetaldehyde
Butyraldehyde
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Propionaldehyde or propanal is the organic compound with the formula CH3CH2CHO. It is the 3-carbon aldehyde. It is a colourless, flammable liquid with a pungent and fruity odour. It is produced on a large scale industrially.

  1. ^ a b Record of Propanal in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 22 March 2020.