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Sulfamic acid CAS#5329-14-6

Stable Physical Properties
Odorless, non-volatile, and non-hygroscopic solid form ensures good storage stability and easy handling.

Excellent Water Solubility
Readily soluble in water and liquid ammonia, enabling efficient use in aqueous systems and industrial processes.

Strong Acidity with Low Metal Corrosion
Delivers acid strength comparable to hydrochloric and sulfuric acids while causing significantly less corrosion to metal equipment.

Low Toxicity and Improved Safety Profile
Exhibits very low toxicity, making it safer to use under proper handling conditions compared with many strong inorganic acids.

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Product Details

Product Description of Sulfamic Acid CAS#5329-14-6

Sulfamic acid appears as a white, flaky crystalline solid with an orthorhombic structure. It is odorless, non-volatile, and non-hygroscopic. The product dissolves readily in water and liquid ammonia, is slightly soluble in methanol, and is insoluble in ethanol, ether, carbon disulfide, and liquid sulfur dioxide. Its aqueous solution exhibits strong acidic properties comparable to hydrochloric acid and sulfuric acid, while showing significantly lower corrosiveness toward metals than hydrochloric acid. Sulfamic acid has very low toxicity; however, prolonged skin contact should be avoided, and contact with the eyes must be prevented.

Sulfamic acid CAS#5329-14-6

Sulfamic acid Chemical Properties

Melting point	215-225 °C (dec.) (lit.)
Boiling point	-520.47°C (estimate)
bulk density	600kg/m3
density	2.151 g/cm3 at 25 °C
vapor pressure	0.8Pa at 20℃
refractive index	1.553
storage temp.	Store below +30°C.
solubility	water: soluble213g/L at 20°C
pka	-8.53±0.27(Predicted)
form	Crystals or Crystalline Powder
color	White
Odor	odorless
PH	1.2 (10g/l, H2O)
Water Solubility	146.8 g/L (20 ºC)
Merck	148,921
Stability:	Stable.
Major Application	environmental
	food and beverages
	general analytical
	industrial qc
	pharmaceutical
InChI	1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4)
InChIKey	IIACRCGMVDHOTQ-UHFFFAOYSA-N
SMILES	NS(O)(=O)=O
LogP	0 at 20℃
CAS DataBase Reference	5329-14-6(CAS DataBase Reference)
NIST Chemistry Reference	Sulfamic acid(5329-14-6)
EPA Substance Registry System	Sulfamic acid (5329-14-6)

Safety Information

Hazard Codes	Xi
Risk Statements	36/38-52/53
Safety Statements	26-28-61-28A
RIDADR	UN 2967 8/PG 3
WGK Germany	1
RTECS	WO5950000
TSCA	TSCA listed
HazardClass	8
PackingGroup	III
HS Code	28111980
Storage Class	8A - Combustible corrosive hazardous materials
Hazard Classifications	Aquatic Chronic 3
	Eye Irrit. 2
	Skin Irrit. 2
Hazardous Substances Data	5329-14-6(Hazardous Substances Data)
Toxicity	MLD orally in rats: 1.6 g/kg (Ambrose)

Product Application of Sulfamic Acid CAS#5329-14-6

Sulfamic acid, a monoamide derivative of sulfuric acid, is a strong inorganic acid widely used in chemical cleaning applications, particularly for the removal of nitrite residues as well as carbonate- and phosphate-based scale deposits. It also functions as an effective catalyst in various organic reactions, including Friedländer quinoline synthesis and the liquid-phase Beckmann rearrangement for producing amides from ketoximes. In addition, sulfamic acid is applied in the preparation of α-aminophosphonates through a three-component reaction involving aldehydes, amines, and diethyl phosphite.

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Sulfamic acid CAS#5329-14-6