Mueller CE‚ Gibbs HR. Toluene sniffing and severe sinus bradycardia. Ann Intern Med. 1985;10(3):103:482. 29. Taylor GJ‚ Harris WS. Glue sniffing causes heart block in mice. Science. 1970; 170(3960):866–8. 30. Wiseman MN‚ Banim S. ‘Glue-sniffer’s heart? Br Med J. 1987; 294(6574):739. 31. Carder Jr‚ Fuerst RS. Myocardial infarction after toluene inhalation. Pediatr Emerg Care. 1997; 13(2):117–9. 32. Vural M‚ Ogel K. Dilated cardiomyopathy associated with toluene abuse. Cardiology
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Lañez‚ Kristine Department of Psychology College of Science University of Santo Tomas España Manila 1015 Abstract A hydrocarbon is strictly composed of carbon and hydrogen atoms only. Five hydrocarbons were used namely hexane‚ cyclohexene‚ toluene‚ naphthalene (in hexane)‚ and the unknown (which will be known through parallel chemical tests). Three tests‚ nitration test‚ bromine test and basic oxidation test were conducted to fully differentiate each type of hydrocarbon from one another. Nitration
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Objective: The objective of this lab was to find and examine the viscosities of ideal and non-ideal solutions. The ideal being the toluene/p-xylene and the non-ideal being the methanol/water. The second objective of this lab was to investigate the temperature dependence of viscosity (Halpern‚ 17-1). Introduction: Viscosity is the resistance to flow of a certain fluid. In this experiment two solutions are used. According to the definition of viscosity mobile liquids have a relatively
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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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burns off and mostly only toluene remains. The microscale graph seems to be accurate because it shows the large jump where the cyclohexane is burned off. To view the apparatuses used in the experiment look at the attached pictures. To compare the simple and fractional distillation‚ our GC analysis shows the samples we submitted. The first samples of our simple distillation showed that 76.21 percent of the mixture was composed of cyclohexane and 23.36 percent was toluene. The first few drops of
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Simple distillation works well when the two components boiling points have a large difference. Fractional distillation works best when the components boiling points have a small difference. The boiling point of cyclohexane is 80 degrees Celsius. Toluenes boiling point is about 110 degrees Celsius. The liquid with a higher vapor pressure is higher in concentration and would be collected first. Raoult’s law states: the vapor pressure of an ideal solution is dependent on the vapor pressure of each chemical
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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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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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July 14‚ 2009 Experiment 6: Fractional Distillation. Separation of Petroleum Hydrocarbons Abstract: A mixture of cyclohexane and toluene were separate from one another by fractional distillation in order to measure the composition of each fraction and prepare the sample for gas chromatography. Introduction: Distillation has been used since antiquity to separate the components of mixtures. This method has been used to manufacture different organic chemicals but the most recent application
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