Sodium nitrate is hazardous in case of ingestion. Slightly hazardous in case of skin contact (irritant), of inhalation. Since it’s very hygroscopic it can be dangerous in mixes with Aluminium or Magnesium.
$5.00 /pound - 2lb lots
Sodium nitrate finds occasional use as an oxidizer in flare and tracer compositions because of the high efficiency of light emission that can be obtained with it, but its high hygroscopic nature limits its use.