81910

Propionic acid

≥99.5% (GC), liquid, puriss. p.a.

• Synonim(y): Acid C₃, Propanoic acid, Propanyl acid
• Wzór liniowy: CH₃CH₂COOH
• Numer CAS: 79-09-4
• Masa cząsteczkowa: 74.08
• NACRES: NA.21
• PubChem Substance ID: 57652866
• eCl@ss: 39021305
• UNSPSC Code: 12352100
• EC Number: 201-176-3
• MDL number: MFCD00002756
• Beilstein/REAXYS Number: 506071
• Assay: ≥99.5% (GC)
• Form: liquid

Właściwości

• Nazwa produktu: Propionic acid, puriss. p.a., ≥99.5% (GC)
• vapor density: 2.55 (vs air)
• Quality Segment: 200
• vapor pressure: 2.4 mmHg ( 20 °C)
• grade: puriss. p.a.
• assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 955 °F
• expl. lim.: 12.1 %
• refractive index: n20/D 1.386
• bp: 141 °C (lit.)
• mp: −24-−23 °C (lit.)
• solubility: organic solvents: soluble(lit.), water: soluble(lit.)
• density: 0.993 g/mL at 25 °C (lit.)
• cation traces: Al: ≤0.5 mg/kg, Ba: ≤0.1 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.1 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.5 mg/kg, K: ≤0.5 mg/kg, Li: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Mo: ≤0.1 mg/kg, Na: ≤1 mg/kg, Ni: ≤0.1 mg/kg, Pb: ≤0.1 mg/kg, Sr: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg
• functional group: carboxylic acid
• SMILES string: CCC(O)=O
• InChI: 1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
• InChI key: XBDQKXXYIPTUBI-UHFFFAOYSA-N

Opis

General description

Propionic acid is a linear monocarboxylic acid. It affords esters on reaction with alcohols or alkenes. It can be synthesized by reacting ethane, carbon monoxide and water. It participates as a precursor in the preparation of smallest azolium homoenolate intermediate.[1]

Application

Propionic acid may be used in the synthesis of cellulose propionate (cellulose ester).

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Informacja o środkach bezpieczeństwa

• 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
• Klasa składowania: 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