THE COSMETICS INDUSTRY Few cosmetic ingredients are manufactured in New Zealand‚ and the cosmentic industry here involves mainly blending and packaging. However a wide range of products is made by a considerable number of companies. In this article the following products are discussed: • Surfactant mixtures for cleaning - shampoos‚ bubble baths‚ facial scrubs etc. • Stabilised emulsions - moisterisers‚ sunscreens etc. • Concealer products - make up • Alcoholic and hydroalcoholic solutions - colognes
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in liver and potatoes‚ and to investigate the effect of temperature‚ surface area‚ pH and certain chemicals on the activity of catalase. Equipment: Dilute hydrochloric acid solution x 1ml 10 volume hydrogen peroxide x 100ml Copper sulphate solution x 1ml Aluminum nitrate solution x 1ml Zinc nitrate solution x 1ml dilute NaOH solution x 1ml Mortar and pestle x 1 25ml Beaker x 1 Hot plate x1 Porcelain tile x 1 Toothpicks x 8 10ml pipette Spatula x 1 knife Test tube
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provide environmental and economical benefits. Fly Ash concrete enhances the workability‚ compressive strength‚ flexural strength and also increases its pumpability‚ durability and concrete finishing. It also reduces corrosion‚ alkali silica reaction‚ sulphate reaction shrinkage as it decreases its permeability and bleeding in concrete. Generally‚ concrete used in the field suffers from lack of durability and homogeneity. Since cement is the only binding material in concrete and due to recent hike in
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Cyclohexane is a saturated hydrocarbon and cyclohexene is an unsaturated hydrocarbon due to the presence of double bond.Both hydrocarbons produce carbon dioxide and water during combustion test. When the oxygen is limited‚ the product will be carbon monoxide and water. The alkenes are highly flammable and burn readily in air‚ forming carbon dioxide and water. In this experiment‚ the combustion of cyclohexene burns in an orange flame and produces relatively high amount of black soot. The black soot
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MEDIA FORMULATION Medium formulation is an essential stage in the design of fermentation process. Most fermentation media require liquid media‚ although some solid-substrate fermentations are also operated. Fermentation media must satisfy all the nutritional requirements of the microorganisms and fulfill the technical objectives of the process (1). There are several stages where media are required in a fermentation process; inoculum (starter culture)‚ propagation steps‚ pilot-scale fermentations
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Chicxulub Impact report- By Sophia Davis The Chicxulub asteroid hit earth over 65 million years ago‚ killing the vast majority of life.(1) This dramatic event had a great effect on Earth and its inhabitants. The impact included three main stages: the change of pathway which lead the asteroid towards earth‚ the fall of the asteroid and the effects caused. First stage The first stage of the Chicxulub impact was the change in space which lead the asteroid on its path to Earth. In order to get a better
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This paper is the first to indicate antiemetic activity of the methanolic extract compositions of A. julibrissin flowers and its protective effect on mitochondria disruption induced by retching in brain of the young chickens. Nausea and vomiting are the symptoms of drug side effects‚ different disease and defenses responsive against poisoning. Recently‚ extensive researches have led to use of medicinal plants as a safe and reliable source of drugs with low or lack of toxicity and side effects [22
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Summaries Synchrony and Casual Relations Between Permian-Triassic Boundary Crises and Siberian Flood Volcanism" by Paul R. Renne‚ Zhang Zichao‚ Mark A. Richards‚ Michael T. Black‚ Ashish R. Basu The paper focuses on the mass extinction that took place at the Permian-Triassic (P-T) boundary‚ as the greatest bio-crisis on Earth‚ whereby almost 90% of the marine species and 70% of terrestrial species were eliminated. This paper regards the Siberian traps‚ the most significant "continental flood volcanism
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optimum pH‚ the pH was dropped from pH 6.50 to 4.11 which caused the water to become acidic. The pH were dropped because when the alum dissolved in water‚ aluminium‚ sulphate and hydrogen ions were released. At time of precipitation of Al(OH)3‚ there were only two types ions remained in solution which were hydrogen and sulphate ions. To such a degree‚ effectively‚ the addition of alum and the precipitation of Al(OH)3
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Experiment C. Aim: To protect one of two carbonyl groups (C1) in order to allow the other to react twice with a Grignard followed by removal of the protecting group by acid hydrolysis to give final product (C2). Method: Ethyl acetoacetate (30.03g)‚ ethylene glycol (15.01g) and toluene-p-sulphonic acid (0.13g) were added to a 250 cm3 round bottomed flask‚ containing a stirrer bar and toluene (100 cm3)‚ fitted with a condenser and dean-stark head. Solution was heated strongly under reflux using
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