Food safety and quality: details

Flavouring	Propionic acid
Synonym(s)
Latest JECFA evaluation	2000 (Session 55)
Status of specification	Full
Information required
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