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81910

Sigma-Aldrich

Propionic acid

puriss. p.a., ≥99.5% (GC)

Sinonimo/i:

Acid C3, Propanoic acid, Propanyl acid

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About This Item

Formula condensata:
CH3CH2COOH
Numero CAS:
Peso molecolare:
74.08
Beilstein:
506071
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
eCl@ss:
39021305
ID PubChem:
NACRES:
NA.21

Densità del vapore

2.55 (vs air)

Livello qualitativo

Tensione di vapore

2.4 mmHg ( 20 °C)

Grado

puriss. p.a.

Saggio

≥99.5% (GC)

Forma fisica

liquid

Temp. autoaccensione

955 °F

Limite di esplosione

12.1 %

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

organic solvents: soluble(lit.)
water: soluble(lit.)

Densità

0.993 g/mL at 25 °C (lit.)

Cationi in tracce

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

Stringa SMILE

CCC(O)=O

InChI

1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
XBDQKXXYIPTUBI-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

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

Avvertenze

Danger

Indicazioni di pericolo

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


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Eagleson M.
Concise Encyclopedia Chemistry, 194-194 (1994)
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Direct β-carbon activation of propionic acid (C2H5CO2H) by carbene organocatalysis has been developed. This activation affords the smallest azolium homoenolate intermediate (without any substituent) as a 3-carbon nucleophile for enantioselective reactions. Propionic acid is an excellent raw material because it
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