| abstract |
The present invention provides a silver-based inorganic antibacterial agent which is excellent in heat resistance, chemical resistance, processability, and also excellent in water resistance. To find that address Pyrophosphate zirconium (ZrP 2 O 7) contains the following formula [1] task by the silver-based inorganic antibacterial agent represented by a, and completed the present invention. Ag a M b Zr c Hf d (PO 4 ) 3 nH 2 O [1] (In formula [1], M is at least 1 sort (s) of ion chosen from alkali metal ion, ammonium ion, hydrogen ion, oxonium ion, a, b, c, and d are positive numbers, 1.75 <(c + d)). ) Is a number satisfying <2.2, a + b + 4 (c + d) = 9, and n is 2 or less.) |