SODIUM NITRITE; CONCENTRATION: 99.1%; PRESENTATION: 50 KG BAG; APPLICATION: WATER TREATMENT; TECHNICAL DEGREE; MAXIMUM CONTENT AS NO3NA: 0.7 %; MAXIMUM CONTENT AS CLNA: 0.02 %; MAXIMUM CONTENT AS H2O: 0.3%; MAXIMUM INSOLUBLE METALS IN H2O: 0.02 %; PACKAGING: BAGS PACKED IN DISPOSABLE WOODEN TRAYS; APPROVED SUPPLIERS: SEE LATEST CURRENT VERSION OF THE LIST OF APPROVED SUPPLIERS