Sodium Perchlorate specificatin as following: iterm standarad sodium perchlorate % ≥ 98.0 Ca-,Mg2- % ≤ 0.006 NACLO3- % ≤ 0.15 NACL % ≤ 0.05 So4(NASO4) % ≤ 0.006 Iron(FE2O3) % ≤ 0.0036 Moisture% ≤ 13.7 Wanter Insoluble% ≤ 0.05 Ph 5-7 white powder packing:25kgs p.p bag 25mts/20ft container