SULFAMIC ACID- CHINA
CAS number: 5329-14-6
ChemSpider: 5767 Yes
EC Number: 226-218-8
UN number: 2967
RTECS number: WO5950000
Molecular formula: H3NSO3
Molar mass: 97.10 g / mol
Appearance: white crystals
Density: 2.15 g / cm3
Melting point: 205 ° C Decay.
Solubility in water: moderate, with slow hydrolysis
Acidity (pKa): 1.0
It is a chemical compound of H3NO3S colorless, odorless, non-volatile and water soluble. It is not volatile and hygroscopic. Sulphamic acid solutions are less corrosive to metals than other mineral acids. It is a strong acid and its strength can be compared with hydrochloric acid and nitric acid.
Production and Reactions
Sulfamic acid is obtained from treatment with sulfur dioxide and sulfuric acid
NH2CONH 2 + SO3 + H2SO 4 H2 2NH2SO3H + CO2
It is used for cleaning metal and ceramic surfaces.
It is used in the production of dyestuff and pigment.
It is used to synthesize sweetener compounds. It is also an excellent primary (primary) standard for measuring acidity in chemical analyzes.
Salts and fireproof paper are produced.