Latest News. Wintersun Receives 2015 Best of Ontario Award. Ontario Award Program Honors the Achievement ONTARIO August 12, 2015 — Wintersun has been selected for the 2015 Best of Ontario Award in the Chemical Additives category by the Ontario... Sodium bisulfate, also known as sodium hydrogen sulfate, is the sodium salt of the bisulfate anion, with the molecular formula NaHSO 4. Sodium bisulfate is an acid salt formed by partial neutralization of sulfuric acid by an equivalent of sodium base, typically either in the form of sodium hydroxide or sodium chloride. The sulfites (whether sulfite or bisulfite, sodium or potassium) have become, because of their low cost, the first choice for scavenging. Sodium sulfite is sold as a powder -- as is, catalyzed, or decharacterized. Liquid versions are often available as aqueous sodium sulfite or metabisulfite solutions. This information is based on our present state of knowledge and is intended to provide general notes on our products and their uses. Product properties and criteria for use in catalogues, instruction leaflets, safety data sheets and other information material that we make available to the buyer, as well as product descriptive statements are not to be understood as guarantees for a particular ... Sodium bisulfite in Other Uses. Sodium Bisulfite , or NaHSO3,is a chemical sanitizer, preservative and water dechlorinator. For these applications, sodium bisulfite is interchangeable with another bisulfate i.e, sodium metabisulfite preservative . Sodium bisulfite is available in a granulated form that resembles table salt.