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.

Colour Index™ International (CI) is a reference database jointly maintained by SDC Enterprises and the American Association of Textile Chemists and Colorists. [1]

Mar 21, 2025 · 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 …

At room temperature, chlorine is a yellow-green gas that is heavier than air and has a strong irritating odor. It can be converted to a liquid under pressure or cold temperatures. Chlorine is mainly used as bleach in the manufacture of paper and …

Chlorine is the 17th element in the periodic table and has a symbol of Cl and atomic number of 17. It has an atomic weight of 35.450 and a mass number of 35. Chlorine has seventeen protons and eighteen neutrons in its nucleus, and seventeen electrons in three shells. It is located in group seventeen, period three and block p of the periodic table.

Colorants listed under a C.I. Generic Name whose serial number contains a colon differ slightly from those listed under the parent C.I. Generic Name. This slight difference is usually chemical but may be due to different crystal modifications in the case of certain pigments.

Oct 28, 2024 · Chlorine plays a significant role in various industrial and chemical processes. For example, it is extensively used in water treatment to disinfect and purify drinking water by eliminating harmful pathogens. In contrast, the symbol Ci does not represent any known element in the periodic table.

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These terms and definitions have been agreed by the Colour Index™ Technical Boards who are volunteers who help to maintain the quality and integrity of the Colour Index™ (C.I.). These Boards are split into having reponsibility for two areas.

Clorul este un agent oxidant puternic, fiind utilizat în procesele de albire și dezinfectare. În stratul superior al atmosferei, moleculele care conțin clor au fost implicate în distrugerea stratului de ozon.