TECHNICAL DATA SHEET
1,4-DIOXAN AR

Diethylene oxide; Dioxane

Biochem Chemopharma
Article No. 504390500 Molecular Formula C4H8O2
H.S. Code 2932.9985 Molecular Weight 88.11
CAS No. 123-91-1
 

Physical Properties

Physical state at 20 °C Liquid
Colour Clear Colorless
Odour Faint ether-like odor
pH value 6 to 8
Melting point/ Freezing point [°C] 10 - 12 °C
Auto-ignition temperature [°C] 180 °C
Flammability (solid, gas) Flammable
Flash point [°C] 12 °C
Boiling point [°C] 100 - 102 °C
Initial boiling point [°C] 100°C
Final boiling point [°C] 102 °C
Evaporation rate 2.7
Vapour pressure [20°C] 36 hPa at 20 °C
Vapour density 3.03
Density [g/cm3] 1.03
Relative density, gas (air=1) 3.04
Partition coefficient Log Pow octanol / water at 20°C -0.27
Explosion limits - upper [%] 22%
Explosion limits -lower [%] 2%
 

Specifications

Assay Min 99.5 %
Wt.per ml at 20°C 1.032 - 1.034 g
APHA Color Max 10
Freezing point Min 11°C
Refractive index (20°C; 589 nm) 1.421 - 1.423
Water (H2O) Max 0.05 %
Acidity (CH3COOH) Max 0.02 %
Non volatile matter Max 0.01 %
Acetal [CH3CH(OC2H5)2] Max 0.8 %
Copper (Cu) Max 0.0001 %
 

Safety Information and Hazard Symbols

Flame Exclamation Mark Health Hazard
Symbol GHS02, GHS07, GHS08
Signal Word Danger
UN No 1165
IMCO Class No. 3
Hazardous Statement H350-H319-H225-H335
Precaution Statement P210-P280 P303+P361+P353-P304+P340-P305+P351+P338-P308+P313-P370+P378-P501
Packing Group II