Online Edition: "Specifications for Flavourings"


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Flavouring Propionic acid
Synonym(s) -
Latest JECFA evaluation 2000 (Session 55)
Status of specification Full
Chemical name Propanoic acid
JECFA number 84
CAS number 79-09-4  
FEMA number 2924
COE number 3
FLAVIS number -
Molecular weight 74.08 
Chemical formula C3H6O2  
Physical form/odour oily liquid/slightly pungent, rancid odour 
Solubility miscible with water, alcohol, organic solvents 
Solubility in ethanol -
Boiling point (°C) 138.5-142.5°
Assay min % 99.5%
Acid value max -
Refractive index 1.384-1.389
Specific gravity 0.993-0.997 (20°/20°)
Other requirements Dist. Range: 138.5° to 142.5°; Heavy Metals: <10 mg/kg; Nonvolatile Res.: <0.01%; Water: < 0.15%
ID Test IR
Spectrum http://www.fao.org/ag/agn/jecfa-flav/img/img/84.gif