Water-soluble single-walled carbon nanotubes were prepared by successive ammonium persulfate oxidation and ammonium sulfamate chemical modification.

Mannich synthesis of β-aminobutanones catalyzed by sulfamic acid;

Synthesis of tributyl citrate using homogeneous catalysis of sulfamic acid as catalyst;

Catalytic synthesis of ethyl benzoate by sulfamic acid;

Application of Amino sulfonic acid in the hypochlorite bleaching of Masson Pine kraft pulp;

Synthesis of isobutyl p-hydroxybenzoate catalyzed by amino sulfonic acid;