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  • Tin And Sulfur

    The unique composition and purity of as-deposited SnS2 thin films prepared with different precursor solution volumes from 5 ml to 25ml were determined by EDX analysis as shown in fig 5, which brought out the presence of Tin and Sulfur as elementary components. Two different peaks were observed in the spectrums from fig 5 relevant to the tin and sulfur. The EDX spectra show that the weight percentage for the film prepared at the precursor solution volume of 5 ml is 36.8% and 63.2%, which is approximately equal to their formal stoichiometry. The Atomic percentage of sulfur in SnS2 thin films increases with an increase in precursor solution volumes from 5 to 20 ml. The atomic percentage of tin and sulfur was observed in the precursor solution…

    Words: 1943 - Pages: 8
  • Melting And Physical Change

    reaction. The copper sulfate pentahydrate is a solid chunk of rock which looks like a crystal, it is a bright royal blue color and was hard to break up when grinding. When heated, the CuSO4*5H2O began to turn white, first at the bottom and around the edges, then throughout the whole test tube. The heat caused the copper sulfate pentahydrate to steam and created a water vapor around the top of the tube. After heating it smelled burnt and changed into a yellowish white color, which looked like…

    Words: 1331 - Pages: 6
  • Air Pollution In East Asia

    it is also the worlds largest producer, accounting for more than 50% of the coal mined every year. All that coal accounts for around 60% of Chinas electricity, and noticeably this substantial burning goes hand and hand with the soot and sulfur dioxide that clouds the cities skylines. As I’m sure the majority of people have deduced the reason for these colossal expansions and necessity for power are due to Chinas extensive industrial involvement in manufacturing. Just to give some perspective…

    Words: 1342 - Pages: 6
  • The Importance Of Phosphites During WWII

    Where did phosphite come from? During WWII, rock phosphate was used as a white phosphorus incendiary and smoke screen. The shortage of rock phosphate concerned ag-officials and they began to look for alternative sources of phosphorus fertilizers. As a result, phosphonates were first considered as fertilizers in Germany and the United States during the 1930s and '40s. Rock phosphate is the beginning of most commercially made phosphorus products in the market today. Without the phosphate, many…

    Words: 1288 - Pages: 6
  • Major Effects Of Air Pollution

    INTRODUCTION Worldwide, air pollution is a growing threat to human health and the natural environment. One of the major effects of air pollution is acid rain and it is caused by sulfur dioxide (SO2) and nitrogen oxides (NOx) gases. The combustion of high sulphur content fossil fuels can release harmful toxic gases into the air and therefore pose serious environmental problems. Coal, oil and natural gas are major energy resources available in environment where as fuel combustion processes and…

    Words: 1280 - Pages: 6
  • Acid Mine Drainage Research Paper

    categorized as either active or passive systems. [2] Controlling AMD generation is often done by reducing the contact between the minerals and dissolved oxygen or blending minerals to decrease the acid generating reaction. Flooding, and land or water storage are a couple ways of reducing the contact between AMD generating elements. Flooding and sealing abandoned mines traps the dissolved oxygen, which is consumed by mineral-oxidizing microorganisms. Underwater storage is implemented by using…

    Words: 866 - Pages: 4
  • Taking A Look At Acid Rain

    1.1 Introduction/ what is Acid Rain? Acid rain, or acid precipitation is a term used to describe any form of precipitation with a pH of less than 5.6. In recent years, the effects of acid rain are being experienced on a global scale with widespread environmental effects. Primarily, acid rain is caused by emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) from the combustion of fossil fuels. However, even pure rainwater is slightly acidic (pH of 5.6-6.5) due to the reaction between H2O…

    Words: 1330 - Pages: 5
  • The Pros And Cons Of Acid Rain

    Sulfuric and nitric acids, particularly in large quantities, can burn the ecosystem over a long period of time. Forests, crops, fields and man-made structures are easily affected, being withered and beat up. These cases are very prominent in the Eastern and Western part of United States and Europe. This concern poses a fostered correspondence and dramatic increase of public awareness. Acid rain existence had gathered attention and is no longer a retractable environmental issue. During the early…

    Words: 1387 - Pages: 6
  • Acid Rain

    Acid rain is any form of precipitation that is extremely acidic, causing harmful effects on the environment. The unusual acidity of acid rain is caused by the high levels of nitric and sulfuric acids in the atmosphere, generated mostly by human activities but also by natural activities. This document will describe the process of acid rain from creation to the effects it has on the environment. Chemical Sources In the formation of acid rain, natural and human-made sources are known to play a…

    Words: 902 - Pages: 4
  • Sulfur In The Body: A Case Study

    Dr. Mercola stresses that sulfur is also indirectly connected to issues that deal with the health of the heart. Connective tissues and processes of metabolism are negatively affected by low levels of sulfur content in the body. Functioning of the heart incorporates a lot of connective tissues and metabolism provides the heart with the necessary energy to facilitate pumping of blood. Glutathione is a metabolic intermediary that can only be synthesized effectively by sulfur minerals. An insulin…

    Words: 1429 - Pages: 6
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