发布日期：2022-01-08
1. In normal temperature and dry environment, sulfamic acid is relatively stable. As long as it does not contact with water, the solid does not absorb moisture. Decompose at high temperature and release toxic gases such as nitrogen and sulfur oxides. Aminosulfonic acid and its salts can form soluble salts with a variety of metal compounds. Decompose at 260 ℃. Soluble in water, liquid ammonia, slightly soluble in methanol, insoluble in ethanol, ether organic solvents, carbon disulfide and liquid sulfite. Aqueous solution is highly ionized. Strong acid. Weak reactivity to organic matters, and its salts are easily soluble in water (except alkaline mercury salts). When the aqueous solution is boiled, it is hydrolyzed to ammonium sulfate. Poisonous! It is neither volatile nor hygroscopic, and is very stable at room temperature. Soluble in water, the aqueous solution is acidic. Hydrolysis in boiling water to form NH + 4 and hso-4.
2. Sulfamic acid is non hygroscopic in air and can be stored for a long time at room temperature and dry environment. Its chemical properties are stable, its aqueous solution has strong acidity and corrodes metals.
3. Solubility: soluble in water and liquid ammonia, slightly soluble in ethanol and methanol, slightly soluble in acetone, insoluble in ether. Insoluble in organic solvents. Soluble in nitrogen-containing alkali liquor and liquid nitrogen; It is also soluble in nitrogen-containing organic reagents such as pyridine; Insoluble in ethanol and methanol. It can dissolve moderately in water and is difficult to mix with common nonpolar solvents such as THF or toluene.
4. Stability: stable
5. Forbidden compound: strong oxidant and strong alkali
6. Conditions to avoid contact: heating
7. Polymerization hazard: non polymerization
8. Decomposition products: sulfur oxides and nitrogen oxides
