Sulphonation – The Process Most electrophilic substitution reactions are irreversible but sulfonation is an exception. Treatment of benzene with "oleum" (a solution of SO3 in concentrated sulfuric acid) will give the sulfonic acid‚ the electrophilic species being sulfur trioxide which is Lewis acidic. Fig – 1 Sulphonation : Benzene equation The sulfonic acid can be converted back by treatment with hot aqueous acid. The reason for this reversibility is the fact that the Wheland intermediate is overall
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cuticle care‚ nail shape‚ OPI Gel color. * OPI Double Trouble-Mani/Pedi combo-$60 The Divine Diva-These are services are for clients who want it all. A true Diva Experience. * OPI Luxury Gel Mani-$40-includes cuticle care‚ nail shape‚ exfoliation‚ paraffin and warm lotion treatment‚ massage and gel color polish. * OPI Luxury Gel Pedi-$60-includes cuticle care‚ nail shape‚ exfoliation‚ callus treatment‚ mask moisture sealer with warm towels‚ massage gel color polish. * OPI Luxury Doubly Decadent-$85
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of the production of candlesticks. All the different materials and processes required to manufacture candles need to be taken into consideration to determine the impacts on the environment. The most common material used to manufacture candles is paraffin wax. Each candle comes in some type of individual packaging most of the time. Candle wicks are made using various natural fibers‚ such as reeds‚ rushes‚ or cotton. An important refinement in wick technology introduced the plaited wick‚ which burned
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] so obviously Carbon Dioxide is a part of this. Also I assume that the fermentation will give off heat and the sugar will probably be turned into alcohol. Materials: ca. 100 g flour Water Yeast 10 per cent solution Glucose Liquid Paraffin Four Test Tubes Lime Water (Used as an indicator) Practical: Our first experiment was to see if yeast impacted dough in anyway and to do this we brought in supplies such as flour and yeast. We followed the instructions and made three groups
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use a variety of tests to identity the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner. The substances were identified according to their properties. Paraffin wax was identified as a non-polar covalent solid‚ sucrose is a polar covalent‚ sodium chloride was acknowledged
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"thE fEasibiLity of mAngo (Magnifera indica) LeavEs aS An inseCticiDe" ABSTRACT This study aimed to produced an insecticide from mango leaves using the decoction method. To get the extract of mango leaves‚ this will be pounded using the mortar and pestle and were boiled in water for its preservation. Let the decoction cool down and it will be filtered to separate the liquid from some solid particles then place in a sprayer. The produced insecticide was compared with the commercial ones. At least
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|Student Number |101 | | | | |Student Name |Sunil_3 Patel | | |
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from http://www.msnbc.msn.com/id/27705829 Ramsland‚ K. (2009). The Magic Bullet. Retrieved October 1‚ 2009‚ from http://www.trutv.com/library/crime/criminal_mind/forensics/ballistics/4.html?print=yes Speer‚ Pat. (2007‚ July). Bugliosi Fails the Paraffin Test. Retrieved October 2‚ 2009‚ from http://www.whokilledjfk.net/paraffin_test.htm (1996). Ballistic Evidence. Retrieved October 4‚ 2009‚ from http://www.jfklancer.com/photos/Rifle_Bullets/index.html
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and xylene. This mixture results in a dark‚ yellow‚ greasy liquid. Within crude oil‚ there are many different types of fuel that are used for different objects‚ depending on the number of carbon bonds. Some of these fuels are refinery gas‚ petrol‚ paraffin‚ diesel‚ residue‚ etc. It is possible to extract all these types of substances using a
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Sterilization by Saturated Steam Mukul Bhatnagar: 21464987 Group Members: Chiew See Hau‚ Daryl Picard‚ Niamh Meagher‚ Musawwir Miriah Introduction Through the course of an entire day‚ an average human will come into contact with millions of different bacterial species. Just as human exposure to these bacterial species is high‚ the utensils we commonly use are subjected to a similar degree of exposure. Generally the temperature required to destroy many species of
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