Sulfamic acid

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Specification

Synonyms: sulfuric acid monoamide, amidosulphuric acid

Chemical formula: H2NSO3H
International name: SULFAMIC ACID
CAS No: 5329-14-6
Appearance: white powder
Packing: bags of 25 kg
Storage: Store in a dry, well-ventilated area
Sulfamic acid (amidosulphuric acid) - colorless crystals of the orthorhombic form. Soluble in water, in organic solvents. When heated to 260 ° C decomposes to SO2, SO3, N2 and H2O. At room temperature sulfamic acid is practically not subjected to hydrolysis.
Receiving
• Industrially prepared by reacting sulfamic acid with urea and SO3 H2SO4:
NH2CONH2 + SO3 + H2SO4: 2NH2SO3H + CO2.
• Sulfamic acid can also be obtained by reacting urea with ClSO2OH, SO2 or SO3 with NH2OH with NH3 under anhydrous conditions and other.

Application
Sulfamic acid is used
• for the treatment of industrial machines and equipment (included in the antiscale)
• in the chemical industry, for the introduction and NHSO3H SO3H groups in organic compounds,
• in the textile industry,
• as a standard substance in atsidimetrii to determine nitrite ions,
• as cleaning, washing and disinfecting agent in the food and dairy industry (for sanitization of equipment for removal of carbonate deposits, milk, beer or cream of tartar), and others.

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