Sodium chloride is also present in seawater, which has an average concentration of about 2 percent of that salt. Atomic Number - 17 Chemical Properties General. The Physical properties of Chlorine are the characteristics that can be observed without changing the substance into another substance. Chlorine often imparts many desired properties in an organic compound when it is substituted for hydrogen (synthetic rubber), so it is widely use in organic chemistry, in the production of chlorates, chloroform, carbon tetrachloride, and in the bromine extraction. Royal Society of Chemistry - Chlorine. Atomic Symbol - Cl. Initially the irritation of the eyes, nose and throat, followed by coughing and wheezing, dyspnea, sputum production and chest pain. Atomic and Molecular Properties.

It is used to treat drinking water and swimming pool water. The data on physical properties of chlorine as determined by different investigators show some variations. Chlorine has a characteristic penetrating and irritating odor. Skin exposure can cause irritation, pain, erythema, blister and burns. Physical properties are usually those that can be observed using our senses such as color, luster, freezing point, boiling point, melting point, density, hardness and odor. Rader's Chem4Kids.com - Chlorine. Chlorine kills bacteria – it is a disinfectant. Hyperphysics - Chlorine. It is also used to make hundreds of consumer products from paper to paints, and from textiles to insecticides. Chemicool - Chlorine. The gas is greenish yellow in color and the liquid is clear amber. About 20% of chlorine produced is used to make PVC. Liquid chlorine on contact can burn the skin and eyes. Chlorine gas can lead to ocular irritation and burns. The most common compound of chlorine is sodium chloride, which is found in nature as crystalline rock salt, often discoloured by impurities.

Atomic Weight - 35.453.