Synthesis of cyanogen fluoride

Preparation of cyanogen fluoride

Cyanogen fluoride, directly as in the case with cyanogen bromide and cyanogen chloride could not be prepared. However it could be obtained  by the action of silver fluoride on cyanogen iodide.

Preparation of cyanogen fluoride

Preparation of cyanogen fluoride

1.3 g fine powdered silver fluoride and 1.5 g cyanogen iodide is placed to a glass tube about 50 cm long and 2-5 cm diameter wide. After removing air the tube is sealed off and heated in a furnace to 220° C for 2-3 hours. After cooling, the tube is immersed in liquid nitrogen and the reaction products allowed to condense. The tube is then opened and the cyanogen fluoride distilled at — 70° C in a freezing mixture of acetone and dry ice. The yield of cyanogen fluoride is 20-25%. Cyanogen fluoride is a colorless gas, and on cooling to a low temperature it forms a white mass which sublimes at — 72° C.

The war gases chemistry and analysis, by M. Sartory, 187-188, 1939


carbononitridic fluoride



InChI Key


Canonical SMILES


Depositor-Supplied Synonyms

Cyanogen fluoride, 1495-50-7, carbononitridic fluoride, AC1L39RB, CPPKAGUPTKIMNP-UHFFFAOYSA-N

Removed Synonyms

CID137036, FCN

Share This

Leave a Reply

Your email address will not be published. Required fields are marked *