Toluene

Over 22 million workers in the US are exposed to hazardous levels of noise in their work place. Additionally, there are many ototoxic chemicals that can attributed to the damage to the parts of the ear that are associated with hearing such as: toluene, styrene, xylene and can be synergistic with mechanical stress to the ear (USAPHC, n.d.). Carbon monoxide has been shown to enhance the severity of hearing loss. Minimizing exposure to degreasers, paint thinners, white spirits, exhaust can…

Scented candles are made up of paraffin, a waxy solid used for petroleum to produce diesel oil. When they burn, paraffin release carcinogenic toxins, substances that causes cancer, into the atmosphere. Different carcinogenic toxins are benzene, toluene, formaldehyde, and many other chemical gases. These deadly chemicals are produced in your own home, causing indoor air pollution. When paraffin burns a certain way, it produces candle soot, a black substance produced by incomplete burning of…

The final precipitate was washed with distilled water several times to remove the possible residues and then dried at 120 °c for 12 hr. Synthesis of CuO-NH-NH2: 1 g of CuO and 1.5 mL of ? were poured into toluene and refluxed for 24 h at 250 °C. The precipitate was filtered, washed with toluene and deionized water and dried. Physicochemical…

smoke floating from the end of a lit cigarette. Side stream smoke is responsible for 85 percent of secondhand smoke and it contains more cancer causing substances than mainstream smoke. Cancer causing chemicals include, Formaldehyde, Benzopyrene and Toluene. You can be exposed to second hand smoke in many places like in a car or bus, at a a friend’s house, in a restaurant, at the mall, at sporting events or concerts, and at parks. Those who are exposed to secondhand smoke are engaging in…

and Diacetone alcohol (C6H12O2). These markers are generally used on hard, non-porous surfaces, because instead of damaging the surface they form a surface layer that can be removed easily by solvents such as acetone (C3H6O), xylene (C8H10), or toluene (C7H8). Acetone (strong chemical used in nail polish remover) is a strong and very effective against permanent markers. It can also remove paint and melt certain surfaces. The alcohol and acetone in the Nail Polish Remover. The two combined…

The bottles of nail polish that you see lying around within your household or beauty centers come bearing a dirty secret most of the time. What we mean is that most of them, if not all, contain lots of chemicals that can pose a health hazard to your health. It can have a very strong smell and often leaving us wondering about the cause and whether it is supposed to be that way. There are a few nail polish options that are not toxic. They are the best option for you if you really care about your…

compound (*) was observed to convert into oxazole (**) completely. By the way, major product was mesoion () which was proceeded predominantly N-methylated in this condition. Because the preliminary examination that was using silver salt as base and toluene as solvent at heating gave rich in O-methylated compounds and controlled side reaction of…

Water is necessary for life, and clean drinking water is essential. Many people believe that bottled water is better for you than tap water. I think that tap water is better because bottled water is bad for the environment, it is less economical, and the toxins used in plastic water bottles are dangerous for our health. To begin with, tap water is better than bottled water because it is safer for the environment. When somebody drinks a glass of water and they use tap water they would usually…

In recent years, modern Li-ion batteries (LIBs) have become ubiquitous power source for a variety of applications such as laptops, mobile phone, and digital camera to electric vehicles, owing to their high power density, high energy density, and long cycle life.1–3 However, there are still many critical challenge to increasing the energy, power density, and improved cycling stability.4–6 In particular, selecting noble electrode materials is the hottest topics in the LIB field. Among them, bulk…

In this experiment, the competing enantioselective conversion (CEC) method was used to react an unknown secondary alcohol, which is either the R- or the S- enantiomer, with S-HBTM and R-HBTM separately. Thin-layer chromatography (TLC) was used to determine which reaction was faster. If the S-HBTM was faster, then the unknown secondary alcohol had the R configuration. If the R-HBTM was faster, then the unknown secondary alcohol had the S configuration. 1H NMR was used to determine the molecular…