Meets USP Reagent Specifications
Preservative: Contains No Preservative
Suggested Applications: HPLC, Spectrophotometry, ACS Reagent
Synonyms: THF, Diethylene oxide
Structural Formula: C4H8O
CAS number: 109-99-9
Hazard Class: 3
Package Group: II
UN number: UN2056
Specifications
Color (APHA): 20 max.
GC Analysis: 99.8% min.
Peroxides (as H2O2) at time of packaging: 2 mg/L max.
Refractive Index (20°C): 1.4065 - 1.4075
Residue: 3 mg/L max.
UV Absorbance @ 250 nm: 0.180 AU max.
UV Absorbance @ 300 nm: 0.020 AU max.
UV Absorbance @ 350 nm: 0.005 AU max.
UV Absorbance @ 400 nm: 0.005 AU max.
Water by Karl Fischer Titration: 0.03% max.
Surface Tension (dyn/cm) at 20°C: 26.4
Vapor Pressure (Torr) at 20°C: 142.0
Physical Properties
Density (g/mL) at 20°C: 0.8880
Molecular Weight: 72.11
Boiling Point (°C): 66.0
Freezing Point (°C): -108.5
Flashpoint (°C): -14
Vapor Pressure (Torr) at 20°C: 142.0