Nomenclature
CAS number: 7783-44-0
Oxygen fluoride ((O
2)F
2); dioxygen difluoride.
F
2O
2; mol wt 70.00.
F 54.28%, O 45.71%.
Description and references
Prepd from O2 and F2:
Ruff, Menzel, Z. Anorg. Allg. Chem. 211, 204 (1933); 217, 85 (1934); Goetschel et al., J. Am. Chem. Soc. 91, 4702 (1969). Chemical behavior: Streng, ibid. 85, 130 (1963). Review: Kemmitt, Sharp, Adv. Fluorine Chem. 4, 214-215 (1965).
Properties
Thermally unstable gas at room temp; begins to
dec into fluorine and oxygen at 100°. Pale yellow solid or yellow
liquid at low temp. mp 154°C (119 K). Early prepns, described as brown
gas, red liq and orange solid (mp 163.5°), probably contained other fluorine-oxygen compounds as impurities:
Goetschel et al., loc. cit. Strong oxidizing
and fluorinating agent.