Sodium bisulfate, also known as sodium hydrogen sulfate, is the sodium salt of the bisulfate anion, with the molecular formula NaHSO4. 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. It is a dry granular product that can be safely shipped and stored. The anhydrous form is hygroscopic. Solutions of sodium bisulfate are acidic, with a 1M solution having a pH of around 1.

Application:

It can be used as a PH regulator instead of sulfuric acid. Unlike sulfuric acid, it is not dangerous to transport and easy to use.

It can manufacture pottery, marble, toilet with detergent, acid cleaning, electroplating spray paint with pretreatment agent.  

It can be used in bleaching AIDS, leather, pulp, dyeing AIDS.