Due to U.S. Export Compliance regulations and packaging concerns, online ordering is NOT available for export transaction and orders with ultimate destination or use outside the USA (including Puerto Rico, U.S. Virgin Islands, Guam and other U.S. territories, and APO or FPO addresses).
Please email us direct with your shipping address so we may quote you direct.
Sodium bisulfite is a chemical compound commonly used as a food additive and to dechlorinate water. Its IUPAC name is sodium hydrogen sulfite and its chemical formula is NaHSO3. This corrosive compound is slightly acidic and can conduct electricity. It usually appears as white crystals, but its color changes when its concentration in a solution is altered. For instance, it appears as a yellow liquid and gives a sulfuric smell in a 25 percent solution.
Molar mass: 104.061 g/mol.
Density: 1.48 g/cm3
Melting point: 150°C
Solubility in water: 42 g/100 ml
Specific gravity: 1.48 (water=1)
Sodium bisulfite as a food additive is marketed as E222. It is used to inhibit bacterial growth in distilled beverages, and it is added to shrimps, potatoes, and cherries. It also plays key roles in winemaking. It can be added directly to fresh fruit juice in small doses to sanitize it before fermentation, while it can also be used for cleaning winemaking equipment and bottles. Sodium bisulfite is also the active ingredient of Campden tablets.
Sodium bisulfite is also valuable for photography. It preserves thiosulfate in fixing baths and scavenges oxygen in the developer solution. It is also an important component in the preparation of textile dyes. But its most important use is for water treatment systems. It reduces the corrosion rate in steel by scavenging for oxygen. Thus, it is added to large pipes and boilers. It also assists in tap and waste water dechlorination.
Sodium bisulfite is now available in ChemWorld. Product is available in different pack sizes and can be shipped within the day upon order.
Same day shipping on all containers and drums if ordered by 3pm EST.
For Rush Orders please call us:
Phone Direct (800) 768-5810
E-Fax (877) 209-1556