Bromosulfamate as biocide in nitrite-containing corrosion inhibition.

摘要

Bromosulfamate is stable with respect to a nitrite corrosion inhibitor in for example cooling systems and provides an effective biocide, bactericide and fungicide. The bromosulfamate is utilized at about 0.1 to 10 ppm (residual) with an optimum of about 0.2 ppm of bromosulfamate. The bromosulfamate is made by reacting together sodium bromide (NaBr), sodium hypochlorite (NaOCl) or chlorine, and sodium sulfamate (NaSO3NH2) or sulfamic acid, and using the product within about 5 hours in treating the nitrite solution.