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34851

Sigma-Aldrich

Acetonitrile

≥99.9%, gradient grade, suitable for HPLC

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Synonym(s):
ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide
Linear Formula:
CH3CN
CAS Number:
Molecular Weight:
41.05
Beilstein/REAXYS Number:
741857
EC Number:
MDL number:
eCl@ss:
39031501
PubChem Substance ID:
NACRES:
NA.03

grade

gradient grade

Quality Level

vapor density

1.41 (vs air)

vapor pressure

72.8 mmHg ( 20 °C)

assay

≥99.9%

form

liquid

autoignition temp.

973 °F

expl. lim.

16 %

baseline drift measuring range

≤15 mAU (210 nm)

technique(s)

HPLC: suitable

impurities

≤0.0002% free alkali (as NH3)
≤0.0005% non-volatile matter
≤0.001% free acid (as CH3COOH)
≤0.02% water (Karl Fischer)
≤0.5 ppb fluorescence (quinine) at 365 nm
≤1 ppb fluorescence (quinine) at 254 nm

refractive index

n20/D 1.344 (lit.)

bp

81-82 °C (lit.)

mp

−45 °C (lit.)

density

0.786 g/mL at 25 °C (lit.)

HPLC-gradient

≤0.5 mAU at 254 nm
≤3 mAU at 210 nm

UV absorption

λ: 195 nm Amax: ≤0.12
λ: 200 nm Amax: ≤0.032
λ: 230 nm Amax: ≤0.0044
λ: 235 nm Amax: ≤0.0044
λ: 250 nm Amax: ≤0.0044
λ: 400 nm Amax: ≤0.0044

application(s)

food and beverages

format

neat

storage temp.

room temp

SMILES string

CC#N

InChI

1S/C2H3N/c1-2-3/h1H3

InChI key

WEVYAHXRMPXWCK-UHFFFAOYSA-N

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General description

Acetonitrile (MeCN) is widely employed as a solvent in various studies and has high dielectric constant (37.5). Various purification procedures to obtain different grades of acetonitrile for use in different studies (polarography, spectroscopy, etc.) have been reported by many researchers.

Application

Acetonitrile (MeCN) may be used as an extraction solvent during the quantification of pesticide residues in fruits and vegetables.

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

Important notice
  • The article number 34851-4X2.5L will be discontinued. Please order the single bottle 34851-2.5L which is physically identical with the same exact specifications.
  • The article number 34851-6X1L will be discontinued. Please order the single bottle 34851-1L which is physically identical with the same exact specifications.

Recommended products

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Legal Information

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

35.6 °F - closed cup

flash_point_c

2.0 °C - closed cup


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