ABC fire fighting powder NH4H2PO4 Purity: 40-90% Packing: 25kg/pp bag or ... , PH 4-4.5 for 10% concentration. Uses: Used to fighting A, B,C ,E kinds of Fires.Packing and storage ... %>=90.0B fire extinguishingSuccessin2/3A fire extinguishingSuccessin2/3 ABC Fire Fighting Powder