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Sulfamic Acid


Chemical Name: Sulfamic acid

Synonyms: Sulphamic acid; Amidosulfonic acid

CAS No.: 5329-14-6

Molecular Formula: NH2SO3H



(a)White orthorhombic crystal. Nonvolatile, nonhygroscopic, odorless. High stability at normal temperature and can maintain original quality for several years. Freely soluble in water and liquid ammonia, strongly acidic in water solution.
(b)Slightly soluble in methanol, insoluble in ethanol and ether. Characteristics of double functional group of amidogen and sulphonic radical, may go on chemical reaction with many matters.
(c)Melting point is 205oC,decomposing temperature is 209oC.




High class

First class

Sulfamic acid %

≥ 99.80

≥ 99.50

Sulpate (SO42-)%

≤ 0.02

≤ 0.02

Iron (Fe3+) %

≤ 0.0005

≤ 0.0005

Insoluble in water %

≤ 0.01


Loss on drying %





Metal parts cleaning, getting away oxidize surface. Slightly corrosive to metal, used to flush boiler, and sterilize bacterium in water. Bleach fiber, wood and paper. Remove nitrite in tobacco. Raw material for pesticide intermediate, ramification of sulfamic zcid.


Packing& Storage:

Knitting bags with plastic linings,25kg per bag, or flexible containers with 500kg,1000kg.

Stored in dry and clean place. Protection from sunshine, rain moisture and any acute objects.