White or light yellow crystal powder, a strong smell of sulfur dioxide, relative density is 1.4, easy to dissolve in water(20°C,54g/100ml water, 100°C,81.7g/100ml water) and glycerin, water solution. It has acidity, and its solubility will become large while raising the temperature and is less to dissolve in ethanol,Damp easily decomposed, when exposed in air, easily oxidized into sodium sulfate.
Mainly used for manufacturing sulphuric acid and bactericidal agent, Carrying out vegetable dehydrate, fruit preservation and bleaching.
Package & Storage
Package: Net each in 25kg plastic woven bag, lined with PE bag or Kraft paper bag within PE liner,or 500kg/1000kg/1100kg;
Storage: keep in dry and cool warehouse with package sealed and away from rain and water.