1,4-Dioxane

CAS RN: 123-91-1

Other Properties

Cryoscopic constant: 4.83; heat of fusion: 2.98 kcal/mol; specific heat: 0.0370 kcal/mol/deg C at 20 deg C; azeotropic mixture with water: 81.6% dioxane, bp 87.8 deg C; azeotropic mixture with ethanol: 9.3% dioxane, bp 78.1 deg C
Hygroscopic
1 mg/cu m = 0.278 ppm, 1 ppm = 3.6 mg/cu m
Distillation range 95-103 deg C at 760 mm Hg
Weight per gallon at 20 deg C = 8.61 lb
... Acid catalyzed degradation of poly (2-butyl-1,3,6-trioxocane) has been studied. ... With 98% sulfuric acid (H2SO4) as the catalyst ... the major products are diethylene glycol, valeraldehyde, and 1,4-dioxane with some 2-butyl-1,3-dioxolane.
Henry's Law constant = 4.8X10-6 atm-cu m/mol at 25 deg C
Hydroxyl radical reaction rate constant = 1.18X10-11 cu cm/molec-sec at 25 deg C (average of 5 values ranging from 0.95X10-11 to 1.37X10-11 cu cm/molec-sec at 25 deg C)
Find more information on this substance at: PubChem, PubMed