... cleaning,getting away oxidize surface. 2.Slightly corrosive to metal, usedto flush boiler. Sulfamic AcidCharacteristicsWhite orthorhombic cystal. Nonvolatile, ... .01≤0.02Loss on drying %≤0.05≤0.10Use: Metal parts cleaning,getting away oxidize surface.Slightly corrosive to ... metal, usedto flush boiler, and sterilize bacterium in water. ...