SULFAMIC ACID

PRODUCT IDENTIFICATION

CAS NO.

5329-14-6

SULFAMIC ACID

EINECS NO. 226-218-8
FORMULA H2NSO3H
MOL WT. 97.09

H.S. CODE

 

TOXICITY Oral rat LD50: 3160 mg/kg
SYNONYMS Amidosulfonic acid; Amidosulfuric acid; Sulphamic acid;
Aminosulfonic acid; Kyselina amidosulfonova; sulphamidic acid; Sulfamidsäure (German); ácido sulfamídico (Spanish); Acide sulfamidique (French);
DERIVATION  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE white crystalline solid
MELTING POINT 205 C (Decomposes)
BOILING POINT  
SPECIFIC GRAVITY 2.1
SOLUBILITY IN WATER soluble
pH 1.18 (1% sol.)
VAPOR DENSITY 3.3

AUTOIGNITION

 

NFPA RATINGS

Health: 3 Flammability: 0 Reactivity: 0

REFRACTIVE INDEX

 

FLASH POINT

 

STABILITY Stable under ordinary conditions

APPLICATIONS

Sulfamic acid, amidosulfonic acid H3NSO3, is a nonvolatile, white crystals; decomposes at melting point 205 C; slightly soluble in water and organic solvents. The main application can find in metals and ceramics cleaning industry as a replacement for hydrochloric acid to remove rust. It is also used in:
  • Formulating cleaning agents
  • Cleaning metals and ceramics
  • Rust removal agent in air conditioner and cooling system
  • Chemical catalyst for esterification process
  • Dye and pigment manufacturing
  • Ingredient in fire extinguishing media
  • Pulp and paper industry as a chloride stabilizer
  • Plasticizer
  • Chemical intermediate
  • Textile and paper bleaching
  • Herbicide
  • Coagulator for urea-formaldehyde resins

Numerous sulfamates (mono, di, tri O-substituted and N-substituted salts and esters) can be existed for characteristic applications.

SALES SPECIFICATION

APPEARANCE

white crystalline solid
PURITY

99.5% min

SULFATE

0.05% max

Fe

10ppm max

WATER

0.05% max

HEAVY METALS

10ppm max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS 8 (Packing Group: III)
UN NO.

2967

OTHER INFORMATION
Hazard Symbols: XI, Risk Phrases: 36/38, Safety Phrases: 26,28