Dimethyl Sulfoxide

CAS RN:67-68-5

Other Properties

pK(BH+) (aqueous sulfuric acid): -2.7
Very hygroscopic; dielectric constant: 45. Specific heat 0.4698 calorie/g at 25 deg C
Heat of solution: -97 Btu/lb = -54 Cal/g
Heat of fusion: 13.5 KJ/mol; dipole moment = 1.4X10-29 = 4.2 debye
VP: 0.42 mm at 20 deg C
Henry's Law constant = 1.031X10-8 atm-cu m/mol at 25 deg C
Hydroxyl radical reaction rate constant = 9.0X10-11 cu cm/molecule-sec at 25 deg C
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed