Sodium bisulfite
¥1100.00
Product Name: Sodium Bisulfite
Chemical Formula: NaHSO₃
Key Features: White to off-white crystalline powder, strong reducing agent, characteristic sulfur dioxide odor, soluble in water, acidic (pH ~4.0-5.0 in solution).
Main Applications by Industry:
Water Treatment: For dechlorination (removing residual chlorine from wastewater and tap water), as an oxygen scavenger in boiler feed water, and for heavy metal reduction.
Textile Industry: As a reducing agent for vat dyes and sulfur dyes, and for removal of excess dye from printed or dyed fabrics.
Food Industry: As a preservative, antioxidant, and anti-browning agent for dried fruits, vegetables, wines, and fruit juices. Also used in sugar refining.
Pulp & Paper: For bleaching wood pulp, preserving pulp stock, and as an anti-chlorine agent during paper production.
Photography: As a preservative in photographic developers and for stop bath formulations.
Chemical Synthesis: As a reducing agent in the production of various organic and inorganic chemicals, and as a sulfonating agent.
Leather Industry: For tanning processes and as a dehairing agent in hide processing.
Mining: As a depressant in the flotation separation of minerals (e.g., separating lead from zinc ores).
Handling & Safety:
May release sulfur dioxide gas. Avoid contact with acids. Use gloves, goggles, and respiratory protection for dust control. Store in a cool, dry, well-ventilated area.
