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. Amidosulfonic acid is a food contaminant arising from its use as an ingredient of paper and paperboard products used in packagin. Sulfamic acid is a white crystalline solid. Density 2.1 g/cm3. Melting point 205°C. Combustible. Irritates skin, eyes, and mucous membranes. Low toxicity. Used to make dyes and other chemicals.
- Formula
- H3SNO3
- Molar mass
- 97.088 g/mol
- CAS Number
- 5329-14-6
- Density
- 2.15 g/cm3
- Purity/Grade
- 99.3% (ACS Reagent)
- Appearance
- Crystal
- Vapour pressure
- 0.008 hPa (0.006 mmHg) at 20 °C; 0.025 hPa (0.019 mmHg) at 100 °C
- Water solubility
- 213 g/L at 20 °C
- Melting point/freezing point
- 215 - 225 °C
- pH
- 1.5 at 10 g/L at 20 °C
- Decomposition temperature
- 209 °C