1,4-Dioxan AR
Diethylene oxide; Dioxane

Product Code.
01073
Grade
Purity
99.5%
CAS No.
123-91-1
Molecular Formula
C4H8O2
Molecular Weight
88.11
H.S.Code
2932.99000
Shelf Life
60 Months

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%

Packaging

Specification

Appearance
A clear colorless liquid
Assay
Min 99.5%
Weight/ mL at 20°C
1.032 - 1.034 g
APHA colour
Max 10
Freezing point
Min 11 deg C
Refractive index (20°C; 589 nm)
1.421 - 1.423
Water (H2O)
Max 0.05%
Acidity (as CH3COOH)
Max 0.02%
Non volatile matter
Max 0.01%
Acetal [CH3CH(OC2H5)2]
Max 0.8%
Copper (Cu)
Max 0.0001%
Iron (Fe)
Max 0.0001%
Lead (Pb)
Max 0.0001%

Safety Information and Hazard Symbols

Symbol: GHS02, GHS07, GHS08
Signal Word: Danger
UN No.: 1165
IMCO Class No.: 3
Packing Group: II
Hazardous Statement: H225-H319-H335-H351
Precaution Statement: P210-P261-P281-P305 + P351 + P338