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34851 Sigma-Aldrich

Acetonitrile

for HPLC, gradient grade, ≥99.9%

Synonym: ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide

  • CAS Number 75-05-8

  • Linear Formula CH3CN

  • Molecular Weight 41.05

  •  Beilstein/REAXYS Number 741857

  •  EC Number 200-835-2

  •  MDL number MFCD00001878

  •  eCl@ss 39031501

  •  PubChem Substance ID 329755061

  •  NACRES NA.03

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Properties

Related Categories Acetonitrile and Acetonitrile Solutions, Amber Glass Bottles, Analytical Reagents, Analytical/Chromatography, Biochemicals and Reagents,
Quality Level   100
grade   for HPLC
  gradient grade
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)
application(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
Featured Industry   Food and Beverages
storage temp.   room temp
SMILES string   CC#N
InChI   1S/C2H3N/c1-2-3/h1H3
InChI key   WEVYAHXRMPXWCK-UHFFFAOYSA-N

Description

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.

Packaging

1, 6×1, 2, 4×2, 2.5, 4×2.5, 4, 4×4 L in glass bottle

20, 50 L in Pure-Pac™ 2

56, 200, 200 L in Pure-Pac™ 1

View returnable container options.

100 mL in glass bottle

200, 200 L in Pure-Pac™ 2

Preparation Note

Product filtered through a 0.2 μm filter

Other Notes

Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

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.

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Legal Information

Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 1648 3 / PGII
WGK Germany 
WGK 2
RTECS 
AL7700000
Flash Point(F) 
35.6 °F - closed cup
Flash Point(C) 
2.0 °C - closed cup

Documents

Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
What is the flash point of Acetonitrile, Product 34851?
The flash point is 2.0°C.
What is the surface tension of Acetonitrile, Product 34851?
The surface tension is 29.04 dynes/cm at 20°C, according to the chemicals encyclopedia published by the Royal Society of Chemistry, 12th ed., Entry# 68.
What is the viscosity of Acetonitrile, Product 34851?
The viscosity is 0.38 cP at 15°C.
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Protocols & Articles

Articles

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Peer-Reviewed Papers
15

References

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