9995. Divinyl Ether

Properties

Very volatile, flammable liq; characteristic odor. Dec on exposure to light or to acid fumes, forming acetaldehyde, and polymerizes to a solid glass-like mass. d₂₀²⁰ 0.774; d₄²⁰ 0.773. bp 28.4°. n_D²⁰ 1.3989. Crit temp 183° (calc). Critical press. ≈30 atm. Specific heat ≈0.53 cal/g. Explosives limits (% by vol in air), lower: 1.7, upper: 27.0. Autoignition temp 360° (680°F). 0.53 g dissolves in 100 g water at 37°. Oil-water soly coefficient at 37°: 41. Miscible with alcohol, ether, oils and other organic solvents. Pharmaceutical product contains not less than 96.0% and not more than 97.0% vinyl ether, the remainder consisting of dehydrated alcohol. Keep protected from light and acid fumes, in a cool place, and away from an open flame. LC₅₀ (3 hr in air) in mice, rats (mg/l): 146.8, 386.5 (Molitor).