CFR › Title 27 › Part 21 › §21.9527 CFR §21.95Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Boiling point at 752mm 218.8-219.4 °C.(b)Density at 15° 0.9386.(c)Refractive index at 20° 1.4831.