... China.If you have any inquiry of Calcium Formate,calcium formate feed grade,just contact Calcium Formate,calcium formate feed grade[CAS No.]: 544 ... : white crystalline powderContent:98% Min.Water Insoluble: 0.5% max.CALCIUM:30.1%MINHeavy metal(AS Pb): 0.002% Max.Dry ... .5Packed in 25kg Kraft bag or 1000kg plastic woven bag Calcium Formate,calcium formate feed grade