94425

Propionsäure

analytical standard

• Synonym(e): Propansäure
• Lineare Formel: CH₃CH₂COOH
• CAS-Nummer: 79-09-4
• Molekulargewicht: 74.08
• NACRES: NA.24
• PubChem Substance ID: 329770339
• eCl@ss: 39021305
• UNSPSC Code: 41116107
• EC Number: 201-176-3
• MDL number: MFCD00002756
• Beilstein/REAXYS Number: 506071

Eigenschaften

• grade: analytical standard
• Quality Segment: 100
• vapor density: 2.55 (vs air)
• vapor pressure: 2.4 mmHg ( 20 °C)
• assay: ≥99.5% (GC)
• autoignition temp.: 955 °F
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 12.1 %
• technique(s): HPLC: suitable, gas chromatography (GC): suitable
• refractive index: 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.)
• application(s): cleaning products; cosmetics; environmental; flavors and fragrances; food and beverages; personal care
• format: neat
• SMILES string: CCC(O)=O
• InChI: 1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
• InChI key: XBDQKXXYIPTUBI-UHFFFAOYSA-N

Beschreibung

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.

Application

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

Propionic acid has been used as a standard for the gas chromatogrsphic (GC) analysis of short chain fatty acids obatined from Lactobacillus reuteri SK24.003 and α-D-glucan.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Sicherheitshinweise

• pictograms: GHS02,GHS05,GHS07
• signalword: Danger
• hcodes: H226,H314,H335
• pcodes: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3
• target_organs: Respiratory system
• Lagerklasse: 3 - Flammable liquids
• wgk: WGK 1
• flash_point_f: 129.2 °F - closed cup
• flash_point_c: 54 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter