Function: concrete antifreezer, silk and flax decolorizer, metal heat treatment agent, steel inhibiter, antidote for cyanide poisoning, analytical reagent in laboratory, preservative for meat, etc.

     The function of the sodium nitrite in water concrete:As early strength agent, enhance the early strength for concrete;As corrosion inhibitor, prevent from the corrosion of steel reinforcement;As antifreezing agent, prevent damage from concrete in winter construction.