Meets ACS Specifications
Suggested Applications: HPLC, Spectrophotometry, ACS Reagent
Synonyms: Methyl cyanide, Cyanomethane
Structural Formula: CH3CN
CAS number: 75-05-8
Hazard Class: 3
Package Group: II
UN number: UN1648
Specifications
Color (APHA): 10 max.
GC Analysis: 99.9% min.
HPLC Gradient @ 254 nm: 0.005 AU max.
Residue: 3 mg/L max.
Titrable Acid: 8.0 µeq/g max.
Titrable Base: 0.6 µeq/g max.
UV Absorbance @ 200 nm: 0.070 AU max.
UV Absorbance @ 210 nm: 0.040 AU max.
UV Absorbance @ 225 nm: 0.020 AU max.
UV Absorbance @ 250 nm: 0.005 AU max.
UV Absorbance @ 350 nm: 0.005 AU max.
Water by Karl Fischer Titration: 0.05% max.
Surface Tension (dyn/cm) at 20°C: 19.1
Vapor Pressure (Torr) at 20°C: 88.8
Physical Properties
Density (g/mL) at 20°C: 0.7822
Molecular Weight: 41.05
Boiling Point (°C): 81.6
Freezing Point (°C): -43.8
Flashpoint (°C): 6
Appearance: Clear
Refractive Index (20°C): 1.3434 - 1.3446
Surface Tension (dyn/cm) at 20°C: 19.1
UV Cutoff (nm): 190
UV Cutoff: 190 nm max.
Viscosity (cP) at 15°C: 0.38