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94425 Sigma-Aldrich

Propionic acid

analytical standard

Synonym: Acid C3, Propanoic acid, Propanyl acid

  • CAS Number 79-09-4

  • Linear Formula CH3CH2COOH

  • Molecular Weight 74.08

  •  Beilstein Registry Number 506071

  •  EC Number 201-176-3

  •  MDL number MFCD00002756

  •  PubChem Substance ID 329770339

  •  eCl@ss 39021305

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Properties

Related Categories Acid, Additional Standards, All Alphabetically Sorted, Alpha Sort, Analytical Standards,
grade   analytical standard
vapor density   2.55 (vs air)
vapor pressure   2.4 mmHg ( 20 °C)
InChI Key   XBDQKXXYIPTUBI-UHFFFAOYSA-N
assay   ≥99.8% (GC)
form   neat
autoignition temp.   955 °F
shelf life   limited shelf life, expiry date on the label
expl. lim.   12.1 %
application(s)   HPLC: suitable
  gas chromatography (GC): suitable
refractive index   n20/D 1.386(lit.)
  n20/D 1.386
bp   141 °C(lit.)
mp   −24-−23 °C(lit.)
solubility   H2O: soluble
density   0.993 g/mL at 25 °C(lit.)
format   neat

Description

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

Propionic acid (PA) is a naturally occurring carboxylic acid, which in its pure state exists as a colorless corrosive liquid with an unpleasant odor. It is miscible in water. Industrially it is produced by hydrocarboxylation of ethylene in presence nickel carbonyl as a catalyst. PA has been found to reduce food intake, lower the fatty acids content in plasma and liver, might improve tissue insulin sensitivity and exerts immunosuppressive actions. Propionic acid is an excellent raw material as it is stable, cheap and safe and can even be used as a food additive.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN3463 - class 3 - Propionic acid
WGK Germany 
1
RTECS 
UE5950000
Flash Point(F) 
129.2 °F
Flash Point(C) 
54 °C
Protocols & Articles

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