WHITE CRYSTALS WITH SLIGHT YELLOW; Sp.Gr.2.17(20℃), M.P.271℃, SOLUBLE IN WATER, SLIGHTLY SOLUBLE IN ALCOHOL AND ETHER, WITH DELIQUESCENCE; WHEN HEATED AT 320℃, DECOMPOSED TO O2, N2, Na2O, NO OR NO2. EASILY BURN AND EXPLODE WHEN MIXED WITH ORGANIC MATERIALS, IT GIVES OFF NITROGEN OXIDE WHEN BURNS. ABSORBS OXYGEN FROM AIR, EVOLVE AS NaNO3, WITH STRONG POISON, DO NOT CONTACT WITH SKIN TO AVOID POLLUTION OR TOXICANT.
MAINLY USED FOR MANUFACTURE NITROCOMPOUND, AZO-DYE, BLEACHING AGENT, MORDANT, AND HEAT TREATMENT OF METAL ETC.