Mercaptobenzothiazole with sulfamic acid

Mercaptobenzothiazole plays a role of corrosion inhibitor with Sulfamic Acid.  Mercaptobenzothiazole also works as Biocide. Uses of sulfamic acid without blend of corrision inhibitor not recommended scientifically. As Sulfamic acid attack on metal surface to corrode. While small presence of corrosion inhibitor increases sulfamic acid utility for descaling purpose.