... )(Purity),wt. % ,min98(Ca content),wt. % ,min30.1(Heavy metals),(Pb)---(Water insoluble),.---(Dry weight loss),wt. % ,max0.5(PH of ... )(Purity),wt. % ,min98(Ca content),wt. % ,min30.1(Heavy metals),(Pb)0.001(Water insoluble),.0.3(Dry weight loss),wt ...