Special Report Plastic Additive: A Techno-Commercial Profile B.G. SAMPAT E-mail: bgsampat@bom3.vsnl.net.in INTRODUCTION Every activity in modern life is influenced by plastics and many depend entirely on plastic products. All these plastic products are made from the essential polymer mixed with a complex blend of materials known collectively as additives. Without additives‚ plastics would not work‚ but with them they can be made safer‚ cleaner‚ tougher and more colourful. Additives cost money
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Flame Test Lab Your company has been contracted by Julius and Annette Benetti. They are worried about some abandoned‚ rusted barrels of chemicals that their daughter found while playing in the vacant lot behind their home. The barrels have begun to leak a colored liquid that flows through their property before emptying into a local sewer. The Benettis want your company to identify the compound in the liquid. Earlier work indicates that it is a dissolved metal compound. Many metals‚ such as
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Development Flame Retardant Materials The flame-retardant paper material‚ Nomex‚ is designed by Cheyney Design and Development as a special solution for manufacturers and other users who have this particular need. Nomex has many applications which include the production of personal protection wear to protect Formula 1 drivers and fire-fighters from sudden combustion. It is also incorporated in the fireproof honeycomb framework the Airbus A380 wide-body aircraft. Nomex flame-retardant paper
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L I G H T I N G Definition of Terms 1.---------Ratio of the flux absorbed by a medium to the incident6 flux. 2.---------General term for the process by which incident flux is dissipated. 3.---------Directional lighting to emphasize a particular object or draw attention to a part of the field or view. 4.---------Angular distance of the sun measured up from the horizon of the great circle that passes perpendicular to the plane of the horizon through the
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Observing Flames and Specs through a Spectroscope By: Seif Alkhouri Cristian Plancia-Mata Charlotte Maxwell Suryansh Kumar Evan Hatton J. Immel Ph.D Introduction Spectroscopy is the study of the interaction between matter and radiated energy. English philosopher Roger Bacon(1214-1294) was the first person to recognize that if sunlight passes through water it splits into colors. Around four centuries ago‚ Isaac Newton originated the title “spectrum” to label the shade of rainbows put
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Purpose: The aim of the laboratory exercise is to determine the time it takes for the flame of a candle to die out. The purpose of the experiment is to observe the burning flame and to determine the rate‚ in seconds‚ at which the flame of a candle burns out once it’s oxygen supplies has been depleted. To obtain the data‚ several beakers arranging in size will be used to help exhaust the oxygen supply to the flame. The purpose of the Graphing and Estimating lab is to consider what happens to the
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A Bunsen burner can be very useful if is as used properly. There are many different types of Bunsen burners but they all use a mixture of gas and oxygen to make a flame that could be used in a laboratory. To use a Bunsen burner‚ there are several critical steps. But before one starts any experiment‚ one should always read through the experiment procedures and make sure that one clearly understands all steps of the experiment. First‚ one must make sure the main gas is on. It is very important
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be regulated until the flame has the desired height. If a very low flame is needed‚ the ports should be kept partly closed when the gas pressure is reduced. Otherwise the flame may "strike back" and burn inside the base of the barrel. If this happens‚ turn off the gas‚ decrease the amount of air admitted‚ and re-light. Part II LUMINOUS FLAME Relight the Bunsen burner. Close the airports or inlets as completely as possible and note the color and shape of the flame which is now luminous.
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doing a flame test. During Part A‚ we used a spectroscope where all of the colors are arranged for you; whereas in Part B‚ we could see and make the colors ourselves and get a more accurate reading of the flames. We had specific elements we were told to put on the wire loop‚ and when we did that we saw different color flames come out of the Bunsen burner. That enabled out group to see the element in an excited state. The unknown element was lithium. This is known because if the color of the flame produced
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adjusted to attain a blue flame? What is the hottest part of a Bunsen burner flame? Is burning the gas a chemical or physical change? Is it endothermic or exothermic? Hypothesis: The Bunsen burner should be lit by striking the match first‚ turning on the gas‚ igniting the gas‚ and adjusting the flame using the gas flow valve‚ the collar‚ and the table gas release to achieve a blue flame. I predict that the hottest part of the Bunsen burner flame is the tip of the flame. The gas burning is a chemical
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