This makes chlorine gas much less deadly than other chemical weapons. Gas masks with activated charcoal or other filters can protect the respiratory system. Hydrochloric acid will destroy living tissue. Chlorine reacts with water in the mucosa of the lungs to form hydrochloric acid. It also tasted metallic and stung the back of the throat and chest. According to soldiers, which were present at the battle, the chlorine smelled like a mixture of pepper and pineapple. They used it at the Second Battle of Ypres in 1915. Germany used chlorine as a chemical weapon in the First World War. Swimming pools are often filled with water that has been treated that way.Īs a chemical weapon It will act as a disinfectant: if it is added to water, it will kill off bacteria and other organisms. Chlorine is both very reactive, and very poisonous. It is also added to water, as a way of purifying it. Uses For water purification Īs of 2021, the main use of chlorine is for bleach. This is a dangerous reaction that can happen without anyone knowing. It is made when sodium hypochlorite reacts with hydrochloric acid. It can be made in the laboratory by reacting manganese dioxide with hydrochloric acid. It can also be made by reacting hydrogen chloride with oxygen and a catalyst. This is known as the chloralkali process. It is made by electrolysis (the passing of electricity through a solution to make chemical reactions happen) of sodium chloride. There are some organic compounds that have chlorine in them, too. It is in the ocean (sea salt) and in the ground (rock salt). Sodium chloride is the most common chlorine ore. Chlorine reacts with bromides and iodides to make bromine and iodine.Ĭhlorine compounds Ĭhlorine is not found as an element. The more acidic it is, the more chlorine is made the more basic it is, the more hypochlorous acid (normally turned into hypochlorite) and hydrochloric acid (normally turned into chlorides) are there. It dissolves in water to make a mixture of hypochlorous acid and hydrochloric acid. It can even burn things instead of oxygen. It reacts with most things to make chlorides. It is more reactive than bromine but less reactive than fluorine. It is heavier than air.Ĭhemical properties Ĭhlorine is highly reactive. It can be made into a liquid when cooled. Properties Physical properties Ĭhlorine is a very irritating and greenish-yellow gas. It is part of the 7th column ( halogens) on the periodic table of elements. Its atomic number (which is the number of protons in it) is 17, and its atomic mass is 35.45. Chlorine ( chemical symbol Cl) is a chemical element.
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