Amino sulfonic acid, is colorless crystal, aqueous solution is acidic, chemical formula is HSO 3 NH 2. Melting point 205ºC, soluble in liquid nitrogen, ethanol, formamide, acetone, slightly soluble in methanol, difficult to dissolve in ether.

Application:
As a bleaching agent. The catalysis of heavy metal ions in the bleaching liquid can be reduced or eliminated, so that the quality of the bleaching liquid can be guaranteed, and the oxidation degradation of metal ions to fiber can be reduced. Also can prevent the fiber peeling reaction, improve pulp strength, whiteness. In application, it should not be put directly into the bleaching liquid, but be dissolved in water first and then into the bleaching liquid. Sulfamic acid is a kind of solid unitary inorganic acid, which can also be regarded as monamide, sulfonamide and amine sulfonic acid of sulfuric acid. It is a monoamide sulphate compound, which is an important fine chemical due to its double functional groups of amino and sulfonic acid, which can carry out various chemical reactions. Catalyst for synthesis of urea - formaldehyde resin. It is also used as a herbicide, fireproofing agent, softener for paper and textiles, cleaner for metals and ceramics. It is used as a nitrile remover in the production of azo dyes. It is used as a stabilizer for chlorination and bleach in swimming pools and as a reference reagent for acid-base titration in analytical chemistry. It can be used as a reference reagent in analytical chemistry for acid-base titration. It is also used as a herbicide, fireproofing agent, softener for paper and textiles, a shrinkproof, bleach, softener for fibers, a cleanser for metals and ceramics, and a catalyst for the synthesis of urinaldehyde resins. It is also used in diazotization of dyes and pickling of electroplated metals. Used as a reagent for indirect determination of nitrite in turbidimetric method. Used as a standard and masking agent for determination of nitrogen and sulfur. Also used in electroplating industry. The main raw materials of acid lotions, metal and ceramic detergents, fiber bleaching auxiliaries, etc. Sulfamic acid is used to prepare nickel sulfamate and to electroplate low stress nickel sulfamate, which can improve the electroplate quality and shorten the electroplate cycle. Sulfamic acid can also be used in the oxidation dyeing of aluminum. Sulfamic acid is used as a complexing agent in sulfamic acid type platinum plating process. As a reference reagent for acid-base titration, it is also used as a softener for herbicides, fireproofing agents, paper and textiles, and in organic synthesis.