At normal temperature and pressure, it is a yellow-green toxic gas with a strong pungent smell. Asphyxiating, denser than air, soluble in water and alkali solution, soluble in organic solvents (such as carbon disulfide and carbon tetrachloride), easily compressible and liquefied into yellow-green oily liquid chlorine. It is one of the main products in chlor-alkali industry and can be used as a strong oxidant.
2. Ammonia has a strong pungent smell.
Ammonia is a colorless gas. There is a strong pungent smell. The density is 0.77 10. The relative density is 0.597 1 (air = 1.00). Easily liquefied into colorless liquid. It can be liquefied under normal pressure (critical temperature 132.4℃, critical pressure 1 1.2 MPa, i.e. 1 12.2 atmospheric pressure). Boiling point -33.5℃. It is also easy to be solidified into a snow-like solid. Melting point -77.75℃. Soluble in water, ethanol and ether.
Extended data:
Main uses of chlorine gas:
In the early 1990s, more than half of the turnover of the chemical industry was related to chlorine. About14 chemical industry personnel are engaged in chlorine-related activities. Chlorine gas used in chemical industry and pharmaceutical industry accounts for about 75% of its total output.
In 1993, among the 50 chemical products with the largest output in the United States, the output of chlorine is second only to sulfuric acid, nitrogen, oxygen, ethylene, quicklime, ammonia water and sodium hydroxide, ranking eighth. Since 1960s, a country's chlorine output is often regarded as an important symbol of the development level of chemical industry.
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