Cleaning Agent

Sulfamic acid cleaning agent has a wide range of applications and can be used to clean boilers, condensers, heat exchangers, jackets, and chemical pipelines. In breweries, it is used to remove scale layers from glass-lined storage tanks, pots, open beer coolers, and beer barrels; it cleans evaporators in enamel factories and equipment in paper mills; in air conditioning systems, it can remove rust and scale from cooling systems and evaporative condensers; on ships, it is used to eliminate algae and scale from seawater evaporators (distillation equipment), heat exchangers, and brine heaters; it can clean scale from copper pots, radiators, dishwashing mechanisms, silverware, toilets, tiles, and food and cheese processing equipment; it can also remove protein deposits from cookers and residues from disinfecting aluminum used in fresh meat, vegetable, and cheese processing plants. The U.S. Department of Agriculture permits the use of sulfamic acid as an acidic cleaning agent in fresh meat, poultry, rabbit, and egg processing enterprises.^[11][18]

Textile Industry

Sulfamic acid can serve as an eliminator of excess nitrite in diazotization reactions in the dye industry, a color fixative for textile dyeing, a flame retardant layer on textiles, and can also be used to produce cleaning agents for yarn and other auxiliaries in the textile industry.^[19]

Paper Industry

Sulfamic acid can be used as a bleaching aid, reducing or eliminating the catalytic effect of heavy metal ions in bleaching solutions, thereby ensuring the quality of the bleaching solution. It also reduces the oxidative degradation of fibers by metal ions, prevents the peeling reaction of fibers, and improves pulp strength and whiteness.^[15]

Petroleum Industry

Sulfamic acid can be used to unblock oil layers and enhance their permeability. Injecting a sulfamic acid solution into carbonate rock oil reservoirs allows it to react easily with the rock, avoiding the deposition of reaction-generated salts. Although the treatment cost is slightly higher, oil production can double. In the United States, a solution containing 48.5% potassium hydroxyacetate, 3.4% sulfamic acid, and 0.1-3% wetting agent is used to clean gypsum scale layers in oil well casings, with a treatment time of about 30 hours.^[16]

Agriculture

Sulfamic acid and ammonium sulfamate were initially developed as herbicides. It is claimed that when applied directly to plants, they act as contact poisons, while when applied to soil, they exhibit a maleicidal effect.