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A monofluoride is a chemical compound with one fluoride per formula unit. For a binary compound, this is the formula XF.

Organofluorine compounds[edit]

Common monofluoride are organofluorine compounds such as methyl fluoride and fluorobenzene.

Inorganic compounds[edit]

All the alkali metals form monofluorides. All have the sodium chloride (rock salt) structure and are soluble in water and even some alcohols.[1] Because the fluoride anion is highly basic, many alkali metal fluorides form bifluorides with the formula MHF2. Sodium and potassium bifluorides are significant to the chemical industry.[2] Among other monofluorides, only silver(I)[3] and thallium(I)[4] fluorides are well-characterized. Both are very soluble, unlike the other halides of those metals.

Selected inorganic monofluorides[edit]

Examples of the monofluorides include:

Metal monofluorides[edit]

Nonmetal monofluorides[edit]


  1. ^ Aigueperse et al. 2005, "Fluorine Compounds, Inorganic," pp. 25–27.
  2. ^ Aigueperse et al. 2005, "Fluorine Compounds, Inorganic," pp. 26–27.
  3. ^ Milne, George W. A. (2005). Gardner's commercially important chemicals. John Wiley and Sons. p. 553. ISBN 978-0-471-73518-2. 
  4. ^ Arora, M. G. (2003). P-block Elements. Anmol Publications. p. 35. ISBN 81-7488-563-3. 


  • Aigueperse, Jean; Mollard, Paul; Devilliers, Didier; Chemla, Marius; Faron, Robert; Romano, Renée; Cuer, Jean Pierre (2005). Ullmann, ed. Encyclopedia of Industrial Chemistry. Wiley-VCH. p. 35. ISBN 978-3-527-30673-2. doi:10.1002/14356007. 
  • Greenwood, N. N.; Earnshaw, A. (1998). Chemistry of the Elements (second edition). Butterworth Heinemann. ISBN 0-7506-3365-4.