Chlorine Essay

1168 words - 5 pages

The Element: ChlorineGeneral InformationWe researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the earth's crust and 1.9% of sea water are chlorine. Chlorine combines with metals and nonmetals and organic materials to form hundreds of chlorine compounds. Chlorine is about 2.5 times as dense as air and moderately soluble in water, forming a pale yellowish green solution. Chlorine is so reactive that it never occurs free in nature.Chemical PropertiesChlorine is in the halogen family, and like all the other halogen elements chlorine has a strong tendency to gain one electron and become a chloride ion. Chlorine readily reacts with metals to form chlorides, most of which are soluble in water. Chlorine also reacts directly with many nonmetals such as sulfur, phosphorus, and other halogens. Chlorine can support combustion; if a candle were to be thrown into a vessel of chlorine, it would continue to burn, releasing dense, black clouds of smoke, The chlorine combines with hydrogen of the paraffin, forming hydrogen chloride, and uncombined carbon is left in the form of soot. Soot is black residue from fuel. Chlorine replaces iodine and bromine from their salts. Dry chlorine is somewhat inert or not able to move, but moist chlorine unites directly with most of the elements.HistoryChlorine was discovered in 1774 by Karl Scheele. Humphry Davy proved that chlorine was an element. Extensive production began 100 years later. During the 20th Century. The amount of Chlorine used was considered a measure of industrial growth. In, 1975 chlorine productions ranked seventh on the list of largest-volume chemicals produced in the United States. The importance of chlorine has changed as new uses have been added. In 1925 paper and pulp used over one-half . The chlorine made and chemical products only 10%. By the 1960's paper and pulp use accounted for only 15-17% and the chemical uses increased to 75-80%. Peoples uses have contributed to the growth of large cities, and new textiles, plastics, paints, and miscellaneous uses have raised man's standard of living. Many large companies are based primarily on the manufacture of chlorine and its compounds. In 1978 17% of the United States production went into the production of vinyl chloride monomer. Other chlorinated organics consumed 48% of United States Production.Toxicity and PrecautionsChlorine was used in World War I as a poison gas. In fact most poisonous gases have chlorine in them. Chlorine is very corrosive to moist tissue and has a very irritating effect on the lungs and mucous membranes of the nose and throat. Inhalation of chlorine gas can cause edema of the lungs and respiratory...

Find Another Essay On Chlorine

Alternatives to Chlorine in Swimming Pools

1470 words - 6 pages Despite the significant benefits of pool chlorines in their capacity to kill hazardous bacteria, it is evident that some of the side effects can be disadvantageous. The general smell of chlorine can be overwhelmingly unpleasant, and the agent can irritate the skin and eyes. It is also has the capability to bleach some fabrics, potentially damaging clothing. Most significantly, excessive air pockets of chlorine gas that surround pools can be

Chlorine Debate, How White Do You Want it?

1315 words - 5 pages Chlorine is one of the world's most widely used chemicals, the buildingelement vital to almost every United States industry. We use chlorine andchlorine-based products whenever we drink a glass of water, buy food wrapped inplastic, purchase produce in the supermarket, pour bleach into a washing machine,have a prescription filled, print out a computer document like this one, or evendrive a car. (Abelson 94)Chlorine, a member of the halogen (salt

Explanations of the major elements: oxygen, carbon, hydrogen, nitrogen, calcium, phosphorus, magnesium, potassium, sulfur, sodium, chlorine, iron and zinc

1424 words - 6 pages Oxygen (O)Human beings obtain this element from the air. It enters a person's bloodstream through the lungs. The blood carries oxygen to the cells of the body. In the cells, oxygen combines with chemicals obtained from food. Energy produced during this process makes it possible for each cell to perform its function in the body. Also, oxygen atoms are present in water and water is essential to all life. It is present in many organic compounds

Case Study of Waste Water Treatment Plants

1288 words - 6 pages , or final clarifiers. Here, the clarifiers are deeper than the primary clarifiers, allowing remaining solids within the waste water to settle. From the final clarifiers, the waste water enters the final phase of treatment. In the final phase, the waste water is disinfected. The process of disinfection varies depending on the technique used, such as; chlorination, UV disinfection, or ozone disinfection. In chlorine disinfection, a liquid or

Tutle

1506 words - 6 pages precursors at acidic and neutral pH. For urea a relative NCl formation of 96% at pH 2.5 and 76% at pH 7.1 was determined. Even under sub-stoichiometric molar ratios of Cl/N the formation of NCl is favored over mono and dichlorinated products. However, the reaction kinetics of urea with chlorine is slow under conditions relevant for swimming pools. Also the mass transfer of NCl from water to the gas phase, which was calculated by the Deacon’s boundary

Ozone layer Depletion and the future effects it will have on the population. Harmful effects of the Ultraviolet rays

844 words - 3 pages tropospheric lifetimes. These compounds are carried into the stratosphere where they undergo hundreds of catalytic cycles with ozone.4 They are broken down into chlorine atoms by ultraviolet radiation.5 Chlorine acts as the catalyst for breaking down atomic oxygen and molecular ozone into two molecules of molecular oxygen. The basic set of reactions that involve this process are: Cl + O3 -->ClO + O2 and ClO + O -->Cl + O2 The net result: O3

The Loopholes of the Montreal Protocol on the Substances that Depletes the Ozone Layer

919 words - 4 pages same. Likewise, as the ozone layer is being created and at the same time being destroyed, the amount of ozone is still the same. In the year 1970, scientist discovered that humans also do disrupt the balance of ozone in the atmosphere. The production of products which contain chlorine such as chlorofluorocarbons (CFC’s) has added an additional factor that destroys the ozone. CFC is an extremely stable molecules made up of chlorine (Cl), fluorine

The Ozone Layer

1121 words - 4 pages inexpensive to produce. Over time, CFCs found uses as refrigerants, solvents, foam blowing agents, and in other smaller applications. Other chlorine-containing compounds include methyl chloroform, a solvent, and carbon tetrachloride, an industrial chemical. Halons, extremely effective fire extinguishing agents, and methyl bromide, an effective produce and soil fumigant, contain bromine. All of these compounds have atmospheric lifetimes long enough to allow

The Health Effects of Chlorinated Drinking Water

2247 words - 9 pages Electrolysis. Desalination of water by chlorine is considered one of the applications of analytical chemistry. Water pollution is a persistent problem which has led to the death of a lot of people in the world. Contaminated drinking water carries diseases such

How Do Activated Carbon Water Filtration Systems Work And What Is Their Capacity To Purify Water?

4706 words - 19 pages AbstractIn this experiment, the research was to see the effects of carbon filters in removing the chlorine from tap water. The research question was to determine how do activated carbon water filtration systems work? What is their capacity to purify water? The purpose of this was to test if water filters really do occupy the capacity stated as well as the removal of substances such as chlorine.Since chlorine can damage the human body, filters

The Indoor Air Quality of Natatoriums

1074 words - 5 pages 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. They are a primary source of disinfection byproducts. Chronic chloramines and the associated smell and irritation are caused by a variety of

Similar Essays

Chlorine Essay

478 words - 2 pages Chlorine      Chlorine is (at room temperature) a greenish-yellow gas that can be readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a very disagreeable odor. It’s Element Symbol is Cl, atomic number is 17, and atomic mass is 35.453. Chlorine’s melting point is -101 C or 149.8 F. The boiling point is -34.05 C or -29.29 F, at one atmosphere pressure. Chlorine is a member of the halogen group

Chlorine Essay

519 words - 2 pages ChlorineChlorine is (at room temperature) a greenish-yellow gas that can be readily liquefied at 5170 Tarr or 6.8 atmospheres, at 20 C (68 F), and has a very disagreeable odor. It's Element Symbol is Cl, atomic number is 17, and atomic mass is 35.453. Chlorine's melting point is -101 C or 149.8 F. The boiling point is -34.05 C or -29.29 F, at one atmosphere pressure. Chlorine is a member of the halogen group. Chlorine was discovered by Swedish

The Element: Chlorine Essay

1066 words - 4 pages The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the

Chlorine Bleach's Impact On The Environment

1576 words - 7 pages Chlorine-based bleaches are found in many household cleaners and play an important role in water treatment. However, they also pose a significant risk to the health of living organisms and to the environment. Are there any viable alternatives to chlorine bleach which could be more forgiving to the environment? Introduction (245 words) WHAT IS CHLORINE BLEACH Bleaches are used as household chemicals to whiten clothes, remove stains and to be