... dry≤0.3 %Packing:10 kg ; 30 kg ; 50 kg metal pail , lined with ethylene bag . ( or following your demand )Uses: ... chemicals, bleaching of paper pulp., recycling of noble metal, avoid the pollution of heavy metal, plasticizer, dyeing, anit-dirt, catalyst, the tail ... and oxidization of peroxide, the pollution control and recycling of metal in photo and meat process industry, the making and catalyst ...