MONOFLUOROPHOSPHORIC ACID ESTER SALT, METHOD FOR PRODUCING THE SAME AND FLUORINE ION RELEASING COMP

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PROBLEM TO BE SOLVED : To provide a monofluorophosphoric acid ester salt, a method for producing the same and a fluorine ion releasing composition which allow a fluorine ion to be released continuously in a significant release amount. SOLUTION : The present invention provides a monofluorophosphoric acid ester salt represented by formula (1) (Mn+ is an ion of H, alkali metal, alkaline earth metal, transition metal, rare earth element, Zn, Al, Ga, In, Ge, Sn, Pb or onium; R1 is a C1-20 hydrocarbon group, or a C1-20 hydrocarbon group having a halogen atom, a hetero atom or an unsaturated bond; n is a valence). SELECTED DRAWING : None COPYRIGHT : (C)2017, JPO&INPIT