Oxidations Of Alcohols With “Eye Of Newt”, “Wing of Bat”, and “Powdered Unicorn Horn” Here we are, at least fifteen articles into this series on alcohols, and all we’ve really talked about is substitution and elimination reactions, with a little bit of acid-base chemistry mixed in. We haven’t even scratched the surface of one of the most important classes of reaction for alcohols – one that becomes crucial as you move into Org 2. I’m talking about oxidation reactions. What do I mean by an “oxidation reaction”, anyway? Let’s start by examining the bonds that form and the bonds that break in this process, where we convert a primary alcohol to an aldehyde: [ No, “Eye of newt” doesn’t actually do oxidation reactions: I’m being a bit coy with exact reagents for now, because as I’ll explain in a bit, there are so many different reagents for oxidation of alcohols that many students get spooked by the fact that they look unfamiliar and fail to actually pay attention to the important part: the bonds that form and break in the reaction ! ] The key process here is that we’re forming a C-O bond and breaking a C-H bond on the same carbon. That’s a sure sign of an oxidation reaction. For more background on oxidation reactions in organic chemistry, check out this when I learned organic chemistry. The reagents that were given to us might have well been “eye of newt” and “powdered unicorn horn” since they were introduced without any background or context and disappeared just as quickly after the section on oxidation was over. It was only later that I understood that oxidation is not nearly as complicated as these weird reagents make it seem. In fact, the underlying process is in most cases extremely familiar – it’s just not taught that way! In the next post, we’ll discuss the common – and very familiar! – mechanistic step that (almost) all oxidation reactions you’ll learn have in common. Not only will oxidation reactions then become less mysterious. Note: it’s an oversimplification because the first step in oxidation of an aldehyde is generally addition of water to form a hydrate, which is then oxidized to the carboxylic acid. Some oxidants we call “weak” (e.g. CrO3, pyridine) can thus be “strong” if water is present. It’s a teaching kludge, but good enough for our purposes, for now.

Molar mass of Fe2O3 = 159.6882 g/mol Molecular weight calculation: 55.845*2 + 15.9994*3 Element Symbol Atomic Mass # of Atoms Mass Percent Fe 55.845 69.943% 15.9994 30.057% In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. These relative weights computed from the chemical equation are sometimes called equation weights. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. A common request on this site is to convert grams to moles. To complete this calculation, you have to know what substance you are trying to convert. The reason is that the molar mass of the substance affects the conversion. This site explains how to find molar mass. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. We use the most common isotopes. This is how to calculate molar mass (average molecular weight), which is based on isotropically weighted averages. This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. For bulk stoichiometric calculations, we are usually determining molar mass, which may also be called standard atomic weight or average atomic mass. Finding molar mass starts with units of grams per mole (g/mol). When calculating molecular weight of a chemical compound, it tells us how many grams are in one mole of that substance. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula.

Tremont Nail Company is very progressive in providing seamless solutions to meet a broad array of needs of customers from various woodworking industries. The broad array of steel cut nails offered by Tremont has many seamless solutions designed to reinvent the flexibility and amazing control of innumerable applications. Tremont Fire Door Clinch Black Oxide Nails are a preferred choice of thousands of woodworking industry professionals who believe strongly in delivering their best hot every time they perform. However, selecting a nail with care is essentials and rest assured, each Tremont nail meets the highest standards of the quality and performance. Black Oxide – The Ultimate Protection Black oxide, the finest chemical conversion coating process indeed comes handy in providing a first class avenue to unleash the potential of maximum protection. Tremont Fire Door Clinch Black Oxide Nails come with excellence of the black oxide coating and are a perfect choice when quality and the aesthetics matter the most. Moreover, these nails are offered in various configurations of length and packing assuring you maximum savings and economical cost of operations. Enhanced corrosion resistance offered by these nails makes them a perfect choice for various demanding operations. Face Nailing – Redefine The Realities In Real-Time Jargons and out-of-the-box theories often confuse many from understanding the realities of various woodworking applications. Moreover, finding a suitable solution is quite easy if you are aware of these terms. Face nailing is a simple process of nailing a nail through the board until it passes it and penetrates the surface behind. The process offers a steadfast fit of the wooden flooring or siding. Tremont Fire Door Clinch Black Oxide Nails are a perfect choice for superb face nailing and the availability of various lengths make it even simpler. Tremont nails indeed are suitable for a broad array of woodworking applications.

Aluminum (aluminium) is the number one most abundant metal found in the Earth’s crust. With that being said, it’s no wonder that with our propensity for exploiting everything we can get our hands on, you will find something made from this metal in pretty much every home you see. I don’t mean to be an ass about it. I’m every bit as guilty as anyone else. Aluminum is cheap, it’s lightweight, and when it’s clean, it’s pretty nice to look at. You know, all shiny and silvery and stuff. Aluminum by itself isn’t all that useful. It’s too soft. Under most circumstances it is mixed with other metals like copper, zinc, magnesium, or manganese to create an alloy with greater strength and durability. Even with other metals thrown in there, aluminum alloys are still quite malleable and can be used for an absolutely ridiculous number of things. You will find aluminum used for cans (of course), pots and pans, utensils, siding, boats, machinery, wheels, motors, gutters, blinds, electrical work, paints, and the list goes on and on and on. It makes good sense, along with being cheap, abundant, and easy to work with, the stuff is also very resistant to corrosion. This is due to aluminum’s affinity for oxygen. You know that dull gray that’s been taking over your nice new aluminum pot? That’s what I’m talking about. That’s aluminum oxide, and that’s what we’re here to get rid of today. Yes, it protects your aluminum from corrosion. But as soon as you clean it off, it starts coming back again. Your aluminum is still protected, and now, because that layer of aluminum oxide isn’t nearly as thick as it was, your pan still looks nice. The method for cleaning aluminum found in this article is intended for unfinished aluminum like (but not limited to) that found in aluminum pots, pans, plates, cups, and utensils.

Keep in mind that the chargers are under great pressure. Please use in accordance with manufacturers instructions. Non-aerosol. Recyclable steel. Volume 10 cm3. Contains 8gm Nitrous Oxide (E942) under pressure. For food use only. Gross cartridge weight - 28g. Color - Silver. Do not pierce. Never dispose of full cartridges. Do not take onboard an aircraft. Keep out of reach of children. Explosion danger - 50C max temperature. RECYCLING - Non refillable, made of 100% recyclable steel. They are safe to put in with your tin cans etc for collection. Please do not dispose of unused cartridges! This information is provided for educational use only. This information is not to be misunderstood as legal or medical advice. Do not inhale the nitrous oxide found in whipped cream charger refills. It may cause serious and irreversible damage to your health, including death. BestWhip, Inc. is not liable in any way for injuries or deaths caused to anyone, regardless of age, by the misuse of the products found on this website. Whippits is the street term for nitrous oxide whipped cream chargers. Even though there is a brand of whipped cream charger named Whip-It, the word "whippits" usually means any brand of nitrous oxide charger like BestWhip, iSi, Whippets, etc. Whipped cream chargers are small stainless steel canisters that are filled with 8 grams or 16 grams of food-grade nitrous oxide. Nitrous Oxide chargers should not be confused with CO2 chargers, which are commonly used for making soda water and also used with AirSoft and other brands of pellet guns. Nitrous oxide (N2O) was first used medically in 1844 for a dental tooth extraction. Nitrous oxide is still used today primarily in dentistry as an addition ot other local anesthetics. As an anesthetic, nitrous oxide is usually administered to the patient via a gas inhaler which mixes the nitrous oxide with oxygen allowing the dentist to precisely control the flow of gas. Nitrous Oxide, like other drugs, poses the potential for abuse when used as a street drug. Dependence of nitrous oxide is not as severe as that of other drugs, such as optiods and narcotics, however chronic abusers often develop strong emotional dependencies which can be highly destructive to their lives.

Aluminum siding was first introduced to the housing market in the 1940s. Since then, many homes have been covered in the durable yet affordable option. Today, more innovative …products have hit the home repair market, making aluminum a less popular choice than in previous years. If you are looking to update your outdoor space, here is everything you need to know about aluminum siding.According to the International Association of Certified Home Inspectors (NACHI), the Chrysler Building and Empire State Building were two of the first buildings to feature this type of cladding, having used the product as early as the 1920s. It was nearly two more decades before residences featured aluminum siding. So many older homes feature this product because up until the 1940s, wood shingles and wood cladding were really the only options. Wood was susceptible to harsh weather and insects such as termites, where this new aluminum product was not. For more than 30 years, aluminum siding was the most commonly used type of siding for residential homes. That all changed in the 1970s. Aluminum siding is not easy to manufacture, and the energy crisis slowed down the production of this home building product. Before long, newer materials started to hit the market that were just as durable and easier to create.Aluminum siding is still in production today and is used for the restoration of older homes as well as in brand new building projects. The newer aluminum siding available in today's market is coated with a special finish that will not dent or scratch as readily as the older versions of the product. There are many different styles to choose from, making this a versatile product. These different styles have been designed to coordinate with different styles of homes, including beach bungalows, traditional homes, ranch houses, and so much more.Aluminum siding was incredibly popular from the 1940s through the 1970s because of its lightweight structure and durability. If you have a home from this time period, it is very much in keeping with the original architecture of the home. This product is not only waterproof and fireproof, but when taken care of, it can last more than 40 years. If you love the look of wood but worry about termites, you can even get enamel-coated aluminum siding that has the look of wood grain. A simple coat of paint is all you need to customize this product. Furthermore, when you do decide to change it out, your old siding is completely recyclable.This thin and lightweight product does have notable disadvantages over some of the newer products available today. To start, aluminum dents very easily, especially in areas that are subject to hail storms. When it does rain, the sound of the drops hitting the aluminum can be heard indoors more so than with wood, stucco, or vinyl siding. In addition, aluminum siding does have maintenance involved because it will need to be painted often, as frequently as every five years.Aluminum siding has a long history in American homes and is still in production today. This is in part due to the many benefits it offers. Aluminum siding is a great option for the budget-conscious homeowner, because it is much less expensive than vinyl siding and other...

Note: EPA no longer updates this information, but it may be useful as a reference or resource. Nature and Sources of the Pollutant: Nitrogen dioxide belongs to a family of highly reactive gases called nitrogen oxides (NOx). These gases form when fuel is burned at high temperatures, and come principally from motor vehicle exhaust and stationary sources such as electric utilities and industrial boilers. A suffocating, brownish gas, nitrogen dioxide is a strong oxidizing agent that reacts in the air to form corrosive nitric acid, as well as toxic organic nitrates. It also plays a major role in the atmospheric reactions that produce ground-level ozone (or smog). Health and Environmental Effects: Nitrogen dioxide can irritate the lungs and lower resistance to respiratory infections such as influenza. The effects of short-term exposure are still unclear, but continued or frequent exposure to concentrations that are typically much higher than those normally found in the ambient air may cause increased incidence of acute respiratory illness in children. EPA's health-based national air quality standard for NO2 is 0.053 ppm (measured as an annual arithmetic mean concentration). Nitrogen oxides contribute to ozone formation and can have adverse effects on both terrestrial and aquatic ecosystems. Nitrogen oxides in the air can significantly contribute to a number of environmental effects such as acid rain and eutrophication in coastal waters like the Chesapeake Bay. Eutrophication occurs when a body of water suffers an increase in nutrients that leads to a reduction in the amount of oxygen in the water, producing an environment that is destructive to fish and other animal life. Trends in Nitrogen Dioxide Levels: Nationally, annual NO2 concentrations remained relatively constant throughout the 1980's, followed by decreasing concentrations in the 1990's. Average NO2 concentrations in 1995 were 14 percent lower than the average concentrations recorded in 1986. The two primary sources of the NOx emissions in 1995 were fuel combustion (46 percent) and transportation (49 percent). Between 1986 and 1995, emissions from fuel combustion decreased 6 percent, and emissions from highway vehicles decreased 2 percent. Overall, national total NOx emissions decreased 3 percent. Additionally, 1995 is the fourth year in a row that all monitoring locations across the nation, including Los Angeles, met the Federal NO2 air quality standard.

The white car in the near lane (closest to the camera) is purging nitrous oxide A nitrous oxide engine is an engine in which the oxygen required for burning the fuel stems from the decomposition of nitrous oxide (N2O) rather than air. The system increases the internal combustion engine's power output by allowing fuel to be burned at a higher-than-normal rate, because of the higher partial pressure of oxygen injected into the fuel mixture. Terminology [edit] In the context of racing, nitrous oxide is often termed nitrous or NOS . The term NOS is derived from the initials of the company name Nitrous Oxide Systems, one of the pioneering companies in the development of nitrous oxide injection systems for automotive performance use. Mechanism [edit] When a mole of nitrous oxide decomposes, it releases half a mole of O2 molecules (oxygen gas), and one mole of N2 molecules (nitrogen gas). This decomposition allows an oxygen concentration of 33% to be reached. Nitrogen gas is non-combustible and does not support combustion. Air—which contains only 21% oxygen, the rest being nitrogen and other equally non-combustible and non-combustion-supporting gasses—permits a 12-percent-lower maximum-oxygen level than that of nitrous oxide. This oxygen supports combustion; it alone combines with gasoline, alcohol, or diesel fuel to produce carbon dioxide and water vapor, along with heat, which causes the former two products of combustion to expand and exert pressure on pistons, driving the engine. Nitrous oxide is stored as a liquid in tanks, but is a gas under atmospheric conditions. When injected as a liquid into an inlet manifold, the vaporization and expansion causes a reduction in air/fuel charge temperature with an associated increase in density, thereby increasing the cylinder's volumetric efficiency. As the decomposition of N2O into oxygen and nitrogen gas is exothermic and thus contributes to a higher temperature in the combustion engine, the decomposition increases engine efficiency and performance, which is directly related to the difference in temperature between the unburned fuel mixture and the hot combustion gasses produced in the cylinders.

Aegle marmelos (Indian Bael) is a tree which belongs to the family of Rutaceae. It holds a prominent position in both Indian medicine and Indian culture. We have screened various fractions of Aegle marmelos extracts for their anticancer properties using in vitro cell models. Gas chromatography-Mass spectrometry (GC-MS) was employed to analyze the biomolecules present in the Aegle marmelos extract. Jurkat and human neuroblastoma (IMR-32) cells were treated with different concentrations of the fractionated Aegle marmelos extracts. Flow cytometric analysis revealed that optimal concentration (50µg/ml) of beta caryophyllene and caryophyllene oxide fractions of Aegle marmelos extract can induce apoptosis in Jurkat cell line. cDNA expression profiling of pro-apoptotic and anti-apoptotic genes was carried out using real time PCR (RT-PCR). Down-regulation of anti-apoptotic genes (bcl-2, mdm2, cox2 and cmyb) and up-regulation of pro-apoptotic genes (bax, bak1, caspase-8, caspase-9 and ATM) in Jurkat and IMR-32 cells treated with the beta caryophyllene and caryophyllene oxide fractions of Aegle marmelos extract revealed the insights of the downstream apoptotic mechanism. Furthermore, in-silico approach was employed to understand the upstream target involved in the induction of apoptosis by the beta caryophyllene and caryophyllene oxide fractions of Aegle marmelos extract. Herein, we report that beta caryophyllene and caryophyllene oxide isolated from Aegle marmelos can act as potent anti-inflammatory agents and modulators of a newly established therapeutic target, 15-lipoxygenase (15-LOX). Beta caryophyllene and caryophyllene oxide can induce apoptosis in lymphoma and neuroblastoma cells via modulation of 15-LOX (up-stream target) followed by the down-regulation of anti-apoptotic and up-regulation of pro-apoptotic genes. CITATION : Sain S, Naoghare PK, Devi SS, et al. Beta caryophyllene and caryophyllene oxide, isolated from Aegle marmelos , as the potent anti-inflammatory agents against lymphoma and neuroblastoma cells. Antiinflamm Antiallergy Agents Med Chem. 2014;13(1):45-55.

John R. Dunbar, UC Cooperative Extension Livestock Nutritionist James G. Morris, Veterinary Medicine and Physiological Sciences Ben B. Norman, UC Davis A. J. Jenkins, Colorado State University Charles B. Wilson, Sutter-Yuba counties John M. Connor, UC Sierra Foothill Research Extension Center publication information California Agriculture 47(3):25-26. . author affiliations J. R. Dunbar is UC Cooperative Extension Livestock Nutritionist; J. G. Morris is Professor, Veterinary Medicine and Physiological Sciences; B. B. Norman is Veterinarian, Veterinary Medicine Extension, UC Davis; A. J. Jenkins is Cooperative Extension Agent, Colorado State University; C. B. Wilson is UC Cooperative Extension County Director, Sutter-Yuba counties; J. M. Connor is Superintendent, UC Sierra Foothill Research Extension Center.