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Specifications 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.Synonyms: ACN; Cyanomethane; Ethyl nitrile; Methyl cyanideMolecular Formula: C2H3NMolecular Weight: 41.05Linear Structural Formula: CH3CNMDL Number: MFCD00001878Purity: >=99.9%Melting Point: -45 C (lit.)Density: 0.786 g/mL at 25 C (lit.)Refractive Index: n20/D 1.344 (lit.)Storage: room tempApplication: Acetonitrile (MeCN) may be used as an extraction solvent during the quantification of pesticide residues in fruits and vegetables.Legal Information: Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLCOther Notes: Pure-Pac(R) II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.Abs.: HPLC-gradient/254 nm ≤0.5 mAUAssay: ≥99.9%Autoignition Temp.: 973°FBP: 81-82°C(lit.)Density: 0.786 g/mL at 25°C(lit.)Expl. Lim.: 16 %Grade: for HPLCImpurities: ≤0.02% water (Karl Fischer)Measuring Range: ≤15 mAU baseline drift, (210 nm)MP: −48°C(lit.)Refractive Index: n20/D 1.344(lit.)Storage Temp.: room tempUV Absorption: λ: 200 nm Amax: ≤0.032Vapor Density: 1.41 (vs air)Vapor Pressure: 72.8 mmHg ( 20°C)
