respectively. Keywords: Catalysts‚ Photocatalysts‚ Mixed oxides‚ Oxides‚ Sol-gel method‚ Photodegradation‚ Nanocomposites‚ Titania‚ Silica IPC Code: Int. Cl.9 B01J2/08; B01J21/06 Synthetic dyes are toxic refractory chemicals which can generate intense color and are hazardous to the environment. Most of dyes are resistant to aerobic biodegradation1. Heterogeneous photocatalytic detoxification
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ANTACIDS- Classification and Mechanism of Action INTRODUCTION Antacids are defined as a substance‚ generally a base‚ which counteracts stomach acidity. The name antacid means anti-acid (against acid). Antacids are the primary treatment for ailments such as gastric reflux‚ gastritis‚ upset stomach and heartburn. Hydrochloric acid is secreted by the stomach to kill harmful organisms‚ aid digestion and activate digestive enzymes. Excess secretion of acid into stomach or impaired resistance by
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The use of hides and skins‚ tanned or untanned‚ as useful articles has been with us for thousands of years. The Oxford Dictionary refers to leather as "material made from the hide or skin of an animal by tanning". Tanning‚ in simple terms‚ refers to the treatment of raw hides and skins with tanning substances to render the material immune to bacterial attack‚ ie to produce leather. Additional changes introduced in the process of tanning are secondary and are related to the tanning and retanning chemicals
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the Reaction| A.|NaHCO3 + HCl|1 |clear bubbles formed| B.|HCl + BTB|2 |turned orange after BTB was added‚ transparent‚ acidic| C.|NH3 + BTB|3 |turned dark blue after BTB was added‚ opaque‚ basic| D.|HCl + blue dye| |blue dye was missing from kit| E.|Blue dye + NaOCl| |blue dye was missing from kit| | with the 1 drop of HCl| || F.|NaOCl + KI|4 |small white precipitate‚ color changed to black after starch was added | | with 1 drop of starch| || G.|KI + Pb(NO3)2|5 |turned bright yellow
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Nanotechnology: Footprints to Future Nanotechnology involves Chemistry Physics Biology Electronics/Photonics Materials Science and Technology Pharmaceuticals Polymer Scientist etc. Top-Down and Bottom-Up Approach Welcome to the Nano-World Did People know about Nanoparticles earlier ????? Purple gold synthesized by Michael Faraday in 1889‚ stored in British Museum Lycurgus cup: It appears green in reflected light‚ but appears red when light is shone from inside
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cultural heritage. And‚ in doing this we would like to offer an experience. You will be experiencing our culture through Our eco-friendly batik fabrics. It is eco-friendly because the Batik workshop that we source our product from uses natural dyes from the surrounding plants and materials. The workshop if one of a handful workshop that stays true to the traditional batik making including the use of plants that grow locally. The workshop produces Batik fabrics for mostly domestic demands and
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PROJECT ON “INVESTMENT IN IPO: AN ANALYSIS” Submitted in partial fulfillment of the requirements For the award of the degree of Master of Business Administration (2006-2008) TABLE OF CONTENTS * ABSTRACT……………………………………………………2 * INTRODUCTION ABOUT IPO………………………………..9 -EVOLUTION AND GROWTH OF INDIAN PRIMARY MARKET -REGULATORY FRAMEWORK -PROCEDURE FOR IPO -BUY BACK OF SHARES -ROLE OF INTERMEDIARIES -IPO GRADING * REVIEW OF LITERATURE
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iron produces a black color. A positive test for the bile esculin slant is a completely blackened tube (Lindell et al‚ 1975). A triple sugar iron (TSI) slant is used to identify sugar fermentation in a microorganism; it contains a red pH-sensitive dye that will turn yellow under acidic conditions‚ such as contact with the acidic byproducts of sugar fermentation. The three sugars‚ sucrose‚ lactose and glucose‚ are present in specific concentrations‚ 1%‚ 1%‚ and .1% respectively (Hajna‚ 1945). The
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Civilization is a term used in many different ways. It can be defined as; people who eat the same kind of foods‚ People who live together‚ people who speak the same language‚ and so on. Yet each way that it is defined relates towards the same topic; Humans and their existence on the planet. Civilization is known greatly as a group of humans or animals that live generally together and practice the same habits. Civilization‚ according to some historians‚ first came into
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M21 Essay: Diagnosis of an Infected Patient Essay As we know bacteria comes in various classes and are distinguished by their shapes‚ chemical configuration‚ source of energy either sunlight or chemicals‚ nutritional requisites and biochemical actions. We have a patient that may be infected with an unknown bacterial infection; we’ve collected a sputum sample and will be testing for one of the following genera: Bacillus‚ Escherichia and Mycoplasma. In order to determine which one of the three
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