Sodium alginate specifications: Color and character:white to yellowwish, fibrous or granular power 2% Formaldehyde(mg/kg):not more than 50mg/kg Arensic/as(mg/kg):not more than 3mg/kg Lead/pb(mg/kg):not more than 5mg/kg Mercury/hg(mg/kg):not more than 1mg/kg Cadmium/cd(mg/kg):not more than 1mg/kg Toal plate count(cfu/g):not more than 5000colonies per gram. Yeasts and moulds(cfu/g):not more than 500colonies per gram E.Coli:ablsent in 5g Salmonella spp:absent in 10g Poly woven bag or paper bag, 25kg/bag