Chlorine

One of the most famous element in periodic table is chlorine with atomic number 17 and with atomic weight of 35.453. It is located in the Halogens group in the periodic table right below the element fluorine. The picture on the left is of Carl Wilhelm Scheele, He was Swedish chemist who discovered many elements in the history of science. He was one of those people who never took any credits in his favor. The element chlorine was discovered by him in 1774, when he reacted hydrochloric acid (HCL-

salt in the pool water to create free chlorine that cleans the pool. The chlorine level in a saltwater pool should be between 1 and 3 parts per million (ppm). If your saltwater pool is not reading any chlorine in the water, don't swim in the pool. You'll need to troubleshoot why the chlorine produced by the generator is not staying in the pool or whether your generator is producing chlorine at all. Give it Time The biggest problem people have with chlorine generators is they do not allow them to

the USA Swimming article The Air Quality Issue, “…air quality is directly affected by the water quality, i.e. bad water = bad air!” This “bad air” they speak of stems from the chloramines within the water. Chloramines are chlorine compound that unlike the traditional chlorine, they cannot burn off in the

water, however on a hot summer day in Brisbane, how does the sunlight affect the chlorine levels of the pool? How does this affect the pH levels? How does this UV light affect the equilibriums in a pool? What systems are there in a pool? pH of the Swimming Pool The sunlight in Brisbane is a very vital factor in pool equilibrium, as the sunlight breaks down the chlorine in the pool. However this breakdown of chlorine is indirect. This occurs due to the fact that different types of bacteria grow a

Chlorine has been purifying our drinking water for the last century. Chlorine has many uses; it is used as an amazing water disinfectant to rid water of harmful organisms, it sanitizes many surfaces, and it is used in the production of many products. Virtually all water borne diseases have been wiped out as a result of purification of drinking water - usually with chlorine. Life expectancy has increased fifty percent in the last century because people are able to drink clean, healthy water. Two

chemical weapon was at the Second Battle of Ypres in April 1915. 160 tonnes of chlorine gas was released onto the French and Algerian troops. This could be considered the starting point in chemical warfare as it was the first large scale deployment of a chemical gas meant for harm. As more and more chemical weapons were developed, more and more countries followed the trend. The use of chlorine gas in trench warfare was first developed by Fritz Haber in 1914 as of help to

experiment. The experiment prove that pH is a very crucial agent in cleaning of a pool. A pound for pound efficiency is almost guaranteed for chlorine administered in any form if proper pH management is considered. Looking at the dissociation of hypochlorous acid under different pH values, it can be proven that the lower the pH the better the efficacy of chlorine. Calcium hypochlorite itself raises the pH of water from 7 to

are built with, whether it is concrete, metal, fibreglass and or plastic. The key to operating a pool is keeping it clean and chemically safe for use. To ensure this you must invest and commonly use measures of keeping your pool chemically stable. Chlorine is the most primary sanitiser to control algae, bacteria and pathogens. However, there are other alternative methods and

that the ratio of relative reactivities was found to be 1.0 : 3.5 : 6.2 : 2.4, which indicates that the secondary hydrogens are more reactive than the primary hydrogens and that reactivity further increases the further away the hydrogen is from the chlorine on the 1-chlorobutane. The results agree with the conjecture that the primary hydrogens are less reactive than

Climate Change is one of the chief problems that the world is struggling right now. It is estimated that every decade, the world’s temperature is increasing by 1ºC and this phenomenon is called global warming. An evident example of global warming is the melting of the polar ice caps. Compare to the past hundred years, the size of the polar ice caps has reduced which resulted to the rise of the sea levels and eventually destroying the homes of those people living near the seaside. Another consequence