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402907 Sigma-Aldrich

Propionic acid

ACS reagent, ≥99.5%

Synonym: Acid C3, Propanoic acid, Propanyl acid

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Properties

Related Categories Acids, Acids & Bases, Analytical Reagents, Analytical/Chromatography, Application Specific Reagents,
grade   ACS reagent
vapor density   2.55 (vs air)
vapor pressure   2.4 mmHg ( 20 °C)
InChI Key   XBDQKXXYIPTUBI-UHFFFAOYSA-N
assay   ≥99.5%
autoignition temp.   955 °F
expl. lim.   12.1 %
impurities   ≤0.002% Carbonyl compounds
  ≤0.10% Readily oxidizable substances (as HCOOH)
  ≤0.15% water
evapn. residue   ≤0.01%
color   APHA: ≤20
refractive index   n20/D 1.386(lit.)
bp   141 °C(lit.)
mp   −24-−23 °C(lit.)
solubility   H2O: soluble
density   0.993 g/mL at 25 °C(lit.)
cation traces   heavy metals (as Pb): ≤0.001%

Description

Packaging

100, 4×100, 500 mL in glass bottle

Application

Propionic acid may be used to alter limestone in order to increase its ability of CO2 uptake.

General description

Propionic acid (PA) also known as propanoic acid is a short chain fatty acid mainly used as food preservative. It is one of the main metabolic end product formed during the fermentation of undigested food in the colon by the microbiota. Its manufacture by glycerol/glucose co-fermentation using Propionibacterium acidipropionici has been reported. Crystal structure study reveals that PA crystals are monoclinic with space group P21/c.

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.

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN3463 - class 3 - Propionic acid
WGK Germany 
1
RTECS 
UE595000
Flash Point(F) 
129.2 °F
Flash Point(C) 
54 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Articles

GC Analysis of C2-C22 Free Fatty Acids on Nukol™

From our library of Articles, Sigma-Aldrich presents GC Analysis of C2-C22 Free Fatty Acids on Nukol™
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification

GC Analysis of C2-C7 Free Fatty Acids on Nukol™

From our library of Articles, Sigma-Aldrich presents GC Analysis of C2-C7 Free Fatty Acids on Nukol™
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification, Size-exclusion chromatography

GC Analysis of Fermentation Compounds on a Packed Column (6.6% Carbowax® 20M on 80/120 °Carbopack™ B AW)

From our library of Articles, Sigma-Aldrich presents GC Analysis of Fermentation Compounds on a Packed Column (6.6% Carbowax® 20M on 80/120 °Carbopack™ B AW)
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification

GC Analysis of Free Fatty Acids in Parmesan Cheese using Nukol™ after SPME using 65 μm Carbowax/DVB Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Free Fatty Acids in Parmesan Cheese using Nukol™ after SPME using 65 μm Carbowax/DVB Fiber
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification, Solid phase microextractions

Graphene Field Effect Transistors for Biological and Chemical Sensors

Victoria Tsai* and Bruce Willner Graphene Frontiers, Philadelphia, PA 19104, USA *Email: victoria@graphenefrontiers.com
Keywords: Adhesion, Chemical vapor deposition, Chromatin immunoprecipitation, Deposition, Drug discovery, Environmental, Evaporation, Ion-exchange chromatography, Nanomaterials, Nanotubes, Semiconductor, Separation

MSMLS Online Plate Map

Metabolite descriptors included with the software download upon purchase of the product include: Name, Parent CID, molecular formula, molecular weight, CAS, ChEBI, HMDB ID, PubChem Compound and Subst...
Keywords: Mass spectrometry, Metabolites

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Peer-Reviewed Papers
15

References

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