pamper herself. The last thing on her mind are the toxins that are in the actual nail polish. Little does she know‚ there are plenty of chemical compounds that are in each nail polish bottle‚ three of which are very toxic. They are formaldehyde‚ toluene‚ and dibutyl pthlate (DBP)-also known as the "toxic trio." These three toxins are in many famous nail polishes including the two leading brands‚ OPI and Essie. In 2006‚ a group of young women activists fought to eliminate the toxins‚ and they did
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extract the oil from the ocean instead of straight out of the land)‚ once it is reached a pipe is placed into the hole and the oil is pumped off into a storage facility or straight into a refinery. To refine the oil they use a process known as fractional distillation‚ this separates the oil into one of its many different forms (such as: gasoline‚ kerosene‚ diesel fuel‚ etc.) by heating it at various different temperatures that are normally in a specific increment so that one or more of the different substances
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Viscosity of Liquids Part I: Low Viscosities Mona Kanj Harakeh 1 Objectives • To measure and analyze the viscosities of ideal (Toluene/p-Xylene) and nonideal (Methanol/Water) binary solutions and their components. • To determine the Activation Energy to viscous flow. • The effect of temperature change on the viscosity will be studied. Method: The viscosities of liquids are determined by measuring the flow time for various liquids in an Ostwald viscometer. 2 Ostwald viscometer 3
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Lab report: Viscosity of Liquids Introduction This experiment focuses on measurements of different trials of various concentrations. The collected data is used to compare and contrast to the ideal binary solutions and their components. The Ostwald viscometer is a useful laboratory equipment to measure the viscosities of many binary solutions. Background Molecules have the ability to slide around each other‚ result in a flow. Such a flow has a resistance called viscosity. Microscopically
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e dominant position in world menthol production. 90% crop of India‚ grown in Uttar Pradesh‚ rest 10% in Punjab‚ Haryana and Rajasthan. Recently‚ Mentha Herb was developed in Madhya Pradesh & Gujarat but in little quantity Uses and Application Menthol mint essential oil is the main source of natural menthol. The dementholised oil (DMO) is reconstituted to produce oil similar to Mentha piperita oil. Many dozens of terpenes present in the essential oil are valuable compounds that find uses in
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equilibrium constant of a chemical reaction at one temperature to the equilibrium constant of the same reaction at a different temperature‚ allowing it to be worked out for all temperatures if it is known for one. The experiment used the solution of toluene and naphthalene to determine the change in enthalpy. The mole fractions and the tempterature of recrylstallizations were graphed and the slope was determined. From the slope the change in enthalpy was determined to be 3.45J. This implies that energy
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of moles of toluene = Mass/Mr = 43.35g/(92.15g/mol) = 0.470428648 moles ≈ 0.470 moles Volume of Sulphuric acid = 10mL (10cm3) Density of Sulphuric acid = 1.84g/cm3 Mass of Sulphuric acid = Density x Volume = 1.84g/cm3 x 10cm3 = 18.4g Mr of Sulphuric acid = 98.09g/mol
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METHANOL PRODUCTION IN TRINIDAD & TOBAGO Final Report: Phase II University of California‚ Davis Date of Report: June 07‚ 2006 Design Group One Elton Amirkhas Raj Bedi Steve Harley Trevor Lango REPORT Executive Summary This report is the first phase of a final report designed to investigate the feasibility of methanol production in Trinidad and Tobago. Specifically‚ this report outlines a proposed four-stage process for producing methanol: STAGE 1: Syngas production STAGE
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HYDROCARBON EXPERIMENT 16 OBJECTIVE The objective of this experiment is to distinguish the difference between various types of hydrocarbons by performing simple tests and reactions involving hydrocarbons. EQUIPMENT AND CHEMICALS Pentene Toluene Heptane Potassium permanganate (1% KMnO4) Aluminum chloride (anhydrous AlCl3) Chloroform (CHCl3) Ligroin Br2 in CCl4 (5%) Stopper pH paper Small test tubes and rack Graduated cylinder (10 ml) Evaporating dish DISCUSSION Organic
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Abstract Qualitative analysis‚ a branch of analytical chemistry‚ deals with the identity of a substance found in a given sample‚ and not the amount of substance in it. It only concerns the substances present or absent in a given sample. Qualitative analysis is therefore used to determine unknown ions present in chemical samples by observing and analyzing results from various reactions of the sample with chemicals. Qualitative analysis is done through a series of steps. It is usually divided
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