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Merck
CN

81910

Propionic acid

≥99.5% (GC), liquid, puriss. p.a.

Synonym(s):

Acid C3, Propanoic acid, Propanyl acid

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About This Item

Linear Formula:
CH3CH2COOH
CAS Number:
Molecular Weight:
74.08
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021305
UNSPSC Code:
12352100
EC Number:
201-176-3
MDL number:
Beilstein/REAXYS Number:
506071
Assay:
≥99.5% (GC)
Form:
liquid
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Product Name

Propionic acid, puriss. p.a., ≥99.5% (GC)

vapor density

2.55 (vs air)

Quality Level

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

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.

Application

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


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Danger

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

Storage Class

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

Regulatory Information

危险化学品

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Eagleson M.
Concise Encyclopedia Chemistry, 194-194 (1994)
Zhichao Jin et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 21(26), 9360-9363 (2015-05-28)
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
Eagleson M.
Concise Encyclopedia Chemistry, 898-898 (1994)



Global Trade Item Number

SKUGTIN
81910-250ML04061832999135
81910-1L04061832998626