Chlorine
When you think of chlorine, the first thing that comes to your mind is the stuff you put in pools. Well that is one of the uses, but there is many, many more. Chlorine protects organisms ranging from the Ecuadorian tree frog, to wood rotting fungi. Chlorine is also surprisingly more plentiful than carbon. Believe it or not chlorine was the first substance used as a poisonous gas in World War I. Chlorine, symbol Cl, is a greenish-yellow gaseous element. In the group 17 of the periodic table, chlorine is one of the halogens. The atomic number of chlorine is 17. Elementary chlorine was first isolated in 1774 by the Swedish chemist Carl Wilhelm Scheele, who thought that gas was a compound of oxygen. It was not until 1810 that the British chemist Sir Humphry Davy proved that chlorine was an element and gave it its present name. At ordinary temperatures, chlorine is a greenish-yellow gas that can readily be liquefied under pressure of 6.8 atmospheres, at 20 degrees Celsius (68 degrees pharenhit). The gas has an irritating odor and can sometimes be dangerous. Chlorine does not occur in nature, but its compounds are common minerals, and it is the 20th most abundant element in the earth's crust. Cl has a specific gravity o
As you can tell there is an ongoing list of uses for chlorine. Chlorine water has strong oxidizing properties resulting from the oxygen set free when the unstable hypochlorous acid decomposes. Only fluorine is more chemically active. Basically, without chlorine life today would come to a halt even with our advanced technology. Every day, hospitals save thousands of lives. 41 at -35 degrees Celsius (-31 degrees pharnehit). You are also surrounded by chlorine when you step into your car. Sodium chloride (common salt) is present in seawater, salt wells, and large salt deposits, often in association with other chlorides. Several things in our world today are made using chlorine. This gas is composed of diatomic molecules with molecular weight 70. Chlorine is two and one half more times dense as air. Chlorine is an active element, reacting with water, organic compounds, and many metals. Chlorine and hydrogen can be kept together in the dark, but react explosively in the presence of light. An ordinary paraffin candle, for example, will burn chlorine with a smoky flame.
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Acceptance Essays
