94425

Propionic acid

analytical standard

• Sinonimo/i: Acid C₃, Propanoic acid, Propanyl acid
• Formula condensata: CH₃CH₂COOH
• Numero CAS: 79-09-4
• Peso molecolare: 74.08
• Beilstein: 506071
• Numero CE: 201-176-3
• Numero MDL: MFCD00002756
• Codice UNSPSC: 41116107
• eCl@ss: 39021305
• ID PubChem: 329770339
• NACRES: NA.24

Proprietà

• Grado: analytical standard
• Livello qualitativo: 100
• Densità del vapore: 2.55 (vs air)
• Tensione di vapore: 2.4 mmHg ( 20 °C)
• Saggio: ≥99.5% (GC)
• Temp. autoaccensione: 955 °F
• Durata: limited shelf life, expiry date on the label
• Limite di esplosione: 12.1 %
• tecniche: HPLC: suitable; gas chromatography (GC): suitable
• Indice di rifrazione: n20/D 1.386 (lit.); n20/D 1.386
• P. eboll.: 141 °C (lit.)
• Punto di fusione: −24-−23 °C (lit.)
• Solubilità: H₂O: soluble
• Densità: 0.993 g/mL at 25 °C (lit.)
• applicazioni: cleaning products; cosmetics; environmental; flavors and fragrances; food and beverages; personal care
• Formato: neat
• Stringa SMILE: CCC(O)=O
• InChI: 1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5); XBDQKXXYIPTUBI-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

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

Prodotti consigliati

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Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS05,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H226,H314,H335
• Consigli di prudenza: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Classi di pericolo: Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 129.2 °F - closed cup
• Punto d’infiammabilità (°C): 54 °C - closed cup
• Dispositivi di protezione individuale: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter