Sodium Bisulfite in Powder Form is safe to use, prevents oxidation, preserves flavour, prevents browning and kills microbes. The Sodium Bisulfite is used in food industry, commercial wines, chemical industry, biochemical engineering and large piping systems. The Sodium Bisulfite can be used as reducing agent and decoloration agent. The Sodium Bisulfite in Powder Form is a free flowing white crystalline powder.