Oxygen difluoride is a chemical compound with the formula OF2. As predicted by VSEPR theory, the molecule adopts a bent molecular geometry. It is a strong oxidizer and has attracted attention in rocketry for this reason. With a boiling point of −144.75 °C, OF 2 is the most volatile (isolable) triatomic compound.

The simplest and best-known compound of this type is oxygen difluoride, OF2 (b.p. 145 °C). It is a pale yellow, poisonous gas that can be prepared by passing fluorine through a dilute solution of NaOH or by electrolyzing aqueous solutions containing KF and HF.

Oxygen Difluoride or OF2 is a chemical compound formed by the reaction between halogen fluorine and dilute aqueous solution of NaOH (sodium hydroxide). The equation for the preparation of Oxygen Difluoride: 2F2 + 2NaOH ——> OF2 + 2NaF + H2O It is a colorless gaseous compound exhibiting a strong peculiar odor and acts as an oxidizer.

Oxygen difluoride appears as a colorless poisonous gas with a strong peculiar odor. Highly toxic by inhalation. Corrosive to skin and eyes. Can explode on contact with water. Decomposes to toxic gaseous fluorine if heated to high temperature. Prolonged exposure of the containers to high heat may result in their violent rupturing and rocketing.