Chlorine Gas Formula

Chlorine Gas Formula

Chlorine gas is an inorganic gas, polemic for being used as chemical weapons, it is mostly used in controlled quantities in chemical industry.

Formula and structure: the chemical structure of chlorine gas is Cl2 and its molecular weight is 70 g/mol. Its structure is Cl-Cl, which is also called the element form of the chlorine element, consist in 2 atoms of chlorine joined by a covalent bond. Both atoms, have a sp3 configuration, i.e, their structur is tetrahedrical. Its chemical structure can be written as below, in the common representations used for organic molecules.

Occurrence: Chlorine gas is extremely reactive for being found in nature, however, the chlorine ion is largely found in nature, especially as the form of inorganic salts as NaCl.

Preparation: Chlorine gas is produced through several methods such as the chlor-alkali, in which a solution of NaCl is decomposed electrolytically by application of a current, the method produce hydrogen gas, chlorine gas and sodium hydroxide.

2 NaCl + 2 H2O → Cl2 + H2 + 2 NaOH

This process is cheap due to the sodium chlorine is extracted from seawater, lakes or mineral deposits.

A second method is the preparation of chlorine by combining hydrochloric acid and manganese dioxide.

Physical properties: Chlorine is a greenish yellow with a pungent suffocating odor gas. It liquefies at 35 ÂșC and it is slightly soluble in water. It is sold as liquefied compressed gas.

Chemical properties: Chlorine gas shows many of the characteristics of elementary chlorine. It is the elementary form of the chlorine element, due to the configuration of the Chlorine atom is [Ne]3s23p5, being to instable for existing as isolated specie, however, when two atom of chlorine form a bond, they share one electron, making with both of them get the electronic configuration [Ar], that is much stable.

Uses: Chlorine gas is used in the treatment of water due to its disinfectant properties. It is used by the paper industries as a bleaching agent.

Health effects/safety hazards: when concentrate, vinegar is very harmful, being fatal when inhaled. It causes serious eye irritation and skin irritation. It can also case fire due to it is a strong oxidized agent. It is toxic to aquatic life.

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