The present invention is completed by finding that a silver ion-containing zirconium phosphate represented by the following formula (1) is excellent tin heat resistance and chemical resistance, low in resin coloring and excellent in processability. €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒAg a M b Zr c Hf d (PO 4 )3·nH 2 O€ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein, in the formula (1), M is at least one ion selected from alkali metal ion, hydrogen ion and ammonium ion, a, b, c and d are positive numbers satisfying a+b+4(c+d)=9; c and d satisfy 1.75(c+d)2.25; and n is 0 or a positive number of not more than 2.
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机译：通过发现由下式（1）表示的含银离子的磷酸锆，具有优异的锡耐热性和耐化学性，树脂着色低，并且加工性优异，从而完成了本发明。Ag a M b Zr c Hf d（PO 4）3·nH 2 O（1）其中，在式（1）中，M为选自碱金属离子，氢离子和铵离子中的至少一种离子，a，b，c和d为满足a + b + 4（c + d）= 9的正数。 ; c和d满足1.75 <（c + d）<2.25; n为0或不大于2的正数。
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