Purge & Trap Grade
Suggested Applications: For VOC Analysis using Purge & Trap methods
Synonyms: Methyl alcohol, Carbinol, Wood alcohol
Structural Formula: CH3OH
CAS number: 67-56-1
Hazard Class: 3
Package Group: II
UN number: UN1230
Specifications
Water by Karl Fischer Titration: 0.30% max.
Refractive Index (20ºC): 1.3280 - 1.3288
Residue: 1 mg/L max.
GC Analysis: 99.9% min.
Volatile Organic Compounds:
All Aromatics: 1 ng/mL max.
Ketones:
2-Butanone: 100 ng/mL max.
Acetone: 50 ng/mL max.
Methyl Isoamyl Ketone: 50 ng/mL max.
All other detectable ketones: 50 ng/mL max.
Chlorohydrocarbons (non-aromatic):
Methylene Chloride: 50 ng/mL max.
Chloroform: 50 ng/mL max.
Carbon tetrachloride: 50 ng/mL max.
All other detectable chlorohydrocarbons: 50 ng/mL max.
Alkanes:
Pentane: 50 ng/mL max.
Hexane: 50 ng/mL max.
Heptane: 50 ng/mL max.
Iso-Octane: 50 ng/mL max.
All other detectable alkanes: 50 ng/mL max.
All other detectable peaks as hexane: 50 ng/mL max.
Surface Tension (dyn/cm) at 20°C: 22.55
Vapor Pressure (Torr) at 20°C: 97.0
Physical Properties
Density (g/mL) at 20°C: 0.7913
Molecular Weight: 32.04
Boiling Point (°C): 64.7
Freezing Point (°C): -97.7
Flashpoint (°C): 11
Elutropic Value, c-18: 1.0