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Cl Chlorine symbol, atomic number 17, atomic weight 35.453, the external electronic 3s23p5 arrangement at the third cycle of group A three ? 99 picometer atomic radius, Cl-181 picometer radius, the first ionization energy 1251kJ/mol, electricity negative 3.0, -1.0 several major oxidation, +1, +3, +5, +7. Elemental chlorine to diatomic molecules composed Cl2. Green and yellow are irritating odor of gas, toxic. Density 3.214 grams / liter, -100.98 ° C melting point, boiling point, coupons ° C dissociation 246.7kJ/mol. Liquid chlorine to the yellow liquid, solid chlorine to the Quartet crystal. 20 ° C in water solubility of 7.29 grams / liter chlorine solution was yellow-green. Partially hydrolyzed into hydrochloric acid, hypochlorous electrolysis, which is sexual bleach. Soluble in carbon disulfide, carbon tetrachloride and other organic solvents. Temperature in the dry chlorine resistance is not very lively. A trace of water exists, lively sexual increased dramatically. Could we all metal compound it with oxygen, nitrogen, carbon is outside the non - I-quality direct combination. Generation chloride. A strong oxidant is strong oxidants. With the formation of alkali hydrochloride and hypochlorite, such as :
Cl2 +2 = NaCl + NaOH + H2Ok NaClO _BR> heating produced by the reaction with alkali and chlorate hydrochloride, with the saturated hydrocarbon occurrence substitution reaction with unsaturated hydrocarbon reaction was. System for bleaching powder, hydrochloric acid, hydrochloride, pesticides, plastics, organic solvents, dyes, chemical reagents, but also for bleaching pulp, clothes, drinking water disinfection, rare metals and the extraction of pure silicon. 1774 Swede Scheler hydrochloride with manganese dioxide prepared by the reaction of chlorine, but I do not know what it is. In 1810 the British David determine chlorine is a single quality, identified the presence of chlorine elements. Chlorine mainly in the form of sodium chloride in water, salt and rock salt lake were. 37Cl by 35Cl and two stable isotope composition. The earth's abundance of 0.14%. Industrial use saturated salt water electrolysis system in laboratory used with concentrated hydrochloric acid manganese dioxide thermal Preparation.
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1) Chlorine;chlorine;bertholite;chloor
2) chlorine
3) chlorine
4) Chlorine
5) chlorine Cl
6) Chlorine
7) chlorine
8) liquid chlorine
9) liquid chlorine
10) residual chlorine
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