Chlorine is a chemical element; it has symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature.

2025年1月25日 · Chlorine, chemical element of the halogen group that is a toxic, corrosive, greenish yellow gas, irritating to the eyes and respiratory system. Much chlorine is used to sterilize water and wastes, and the substance is employed either directly or indirectly as a bleaching agent for paper.

Chlorine is the 11th most abundant element in the earth’s crust and chlorinated compounds occur naturally in humans (e.g. in blood, skin, tears and teeth). In white blood cells, chlorine helps to fight infections.

Chlorine | Cl2 | CID 24526 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2025年1月21日 · Chlorine is a greenish-yellow gas at room temperature, known for its powerful disinfectant properties and pungent odor. As a member of the halogen group, it is highly reactive, especially with hydrogen, forming hydrochloric acid, a …

Elemental chlorine gas (Cl 2) is a yellow-green gas at room temperature and has a pungent odor similar to bleach even at very low concentrations. Chlorine has an atomic number of 17 and an atomic mass of 35.45, meaning that an atom of chlorine consists of …

Chlorine is a highly reactive gas. It is a naturally occurring element. The largest users of chlorine are companies that make ethylene dichloride and other chlorinated solvents, polyvinyl chloride (PVC) resins, chlorofluorocarbons, and propylene oxide. Paper companies use …