Applications

• Catalyst for esterification process
• Dye and pigment manufacturing
• Herbicide
• Coagulator for urea-formaldehyde resins
• Ingredient in fire extinguishing media. Sulfamic acid is the main raw material for ammonium sulfamate which is a widely used herbicide and fire retardant material for household product.
• Pulp and paper industry as a chloride stabilizer
• Synthesis of nitrous oxide by reaction with nitric acid
• The deprotonated form (sulfamate) is a common counterion for nickel(II) in electroplating.

General

Sulfamic acid, also known as amidosulfonic acid, amidosulfuric acid, aminosulfonic acid, and sulfamidic acid, is a molecular compound with the formula H3NSO3. This colorless, water-soluble compound finds many applications. Sulfamic acid melts at 205 °C before decomposing at higher temperatures to H2O, SO3, SO2, and N2.[2]

Sulfamic acid (H3NSO3) may be considered an intermediate compound between sulfuric acid (H2SO4), and sulfamide (H4N2SO2), effectively replacing an –OH group with an –NH2 group at each step. This pattern can extend no further in either direction without breaking down the –SO2 group. Sulfamates are derivatives of sulfamic acid.

Specification

Minimum Assay: >99.5 %
Molecular Formula: H2NSO3H
Molecular Weight: 97.09
Melting Point: 205 deg C
Ammonium Bisulphate:  Sulphates (SO4): Water (H2O) Lead (Pb): Iron (Fe): Arsenic (As): Appearance of 10% aqueous solution:  Clear & colourless

Hazards

Hazard Class: 8

Hazard Phrases: Causes skin irritation. Causes serious eye irritation. Harmful to aquatic life with long lasting effects.

Prec Phrases: Avoid release to the environment. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.