Skip to Content
Merck
CN

402907

Propionic acid

ACS reagent grade, ≥99.5%, liquid

Synonym(s):

Acid C3, Propanoic acid, Propanyl acid

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
CH3CH2COOH
CAS Number:
79-09-4
Molecular Weight:
74.08
NACRES:
NA.21
PubChem Substance ID:
24865136
eCl@ss:
39021305
UNSPSC Code:
12352100
EC Number:
201-176-3
MDL number:
MFCD00002756
Beilstein/REAXYS Number:
506071

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Propionic acid, ACS reagent, ≥99.5%

InChI key

XBDQKXXYIPTUBI-UHFFFAOYSA-N

InChI

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

SMILES string

CCC(O)=O

grade

ACS reagent

vapor density

2.55 (vs air)

vapor pressure

2.4 mmHg ( 20 °C)

assay

≥99.5%

form

liquid

autoignition temp.

955 °F

expl. lim.

12.1 %

analyte chemical class(es)

amino acids

impurities

≤0.002% Carbonyl compounds
≤0.10% Readily oxidizable substances (as HCOOH)
≤0.15% water

evapn. residue

≤0.01%

color

APHA: ≤20

refractive index

n20/D 1.386 (lit.)

bp

141 °C (lit.)

mp

−24-−23 °C (lit.)

solubility

H2O: soluble

density

0.993 g/mL at 25 °C (lit.)

cation traces

heavy metals (as Pb): ≤0.001%

functional group

carboxylic acid

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Propionic acid may be used to alter limestone in order to increase its ability of CO2 uptake.

General description

Propionic acid (PA) also known as propanoic acid is a short chain fatty acid mainly used as food preservative. It is one of the main metabolic end product formed during the fermentation of undigested food in the colon by the microbiota. Its manufacture by glycerol/glucose co-fermentation using Propionibacterium acidipropionici has been reported. Crystal structure study reveals that PA crystals are monoclinic with space group P21/c.
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.

signalword

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
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCZ7995
MKCX7211
MKCQ6206
MKCS0779
MKCP9559

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Yin Liu et al.
Current microbiology, 62(1), 152-158 (2010-06-15)
Cosubstrates fermentation is such an effective strategy for increasing subject metabolic products that it could be available and studied in propionic acid production, using glycerol and glucose as carbon resources. The effects of glycerol, glucose, and their mixtures on the
Derrick F MacFabe et al.
Behavioural brain research, 217(1), 47-54 (2010-10-13)
Recent evidence suggests that a variety of environmental factors, including dietary and gastrointestinal agents, may contribute to autism spectrum disorders (ASD). Here we administered propionic acid (PPA), a short chain fatty acid that is used as a food preservative and
The crystal structure of propionic acid.
Strieter FJ, et al.
Acta Crystallographica, 15(12), 1233-1239 (1962)
Enhancement of CO2 capture capacity by modifying limestone with propionic acid.
Sun R, et al.
Powder Technology, 233, 8-14 (2013)
Flour and Breads and their Fortification in Health and Disease Prevention.
Victor R. Preedy, Ronald Ross Watson, Vinood B
Technology & Engineering, 476-476 (2011)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service