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.

We have done business with them for a number of years and when the daughter took it over, the customer service went downhill almost immediately. We sent our driver in to drop off our parts and asked them to hold off for an hour on processing our order because we had more parts to add. When I picked up the completed order (9 days later), they handed me the bill and we were charged for 2 lots. I tried reminding them that we had asked to hold the order for the remaining parts. She claimed that never happened and it was our drivers word against their employee. I said that this was horrible customer service and perhaps I should take my business elsewhere. She went to her desk, handed me a piece of paper and said, "Good luck finding anyone else. We are the only Black Oxide service in San Diego county." The paper she handed me had other Black Oxide services North of us in the LA area and Anaheim areas. I was shocked that she would treat customers this way. No regard for the years of business we gave them. Plus, their rates had increased drastically in the past two years. So, I called the other companies and found a GREAT one in Santa Fe Springs called AllBlack Co. I spoke with Juan at 1.800.425.2522 and he walked me through their process. He set me up with a new account, sent his delivery driver down our way, picked up on a Wed. and had my parts back to me Friday - 2 days later!! Their rates are 1/2 of what Black Oxide in San Marcos are. Plus, their customer service is incredible! BO in San Marcos took close to 2 weeks to get me my parts. Additionally, they closed during Christmas for 3 weeks. So, I guess I should thank BO in San Marcos for the sheet of paper with all of their competitors... It's where I found a fantastic company, wonderful customer service, great turn-around and low rates - AllBlack Co!!!

Lewis Structures of Atoms The chemical symbol for the atom is surrounded by a number of dots corresponding to the number of valence electrons. Lewis Structures for Ions of Elements The chemical symbol for the element is surrounded by the number of valence electrons present in the ion . The whole structure is then placed within square brackets, with a superscript to indicate the charge on the ion. Atoms will gain or lose electrons in order to achieve a stable, Noble Gas (Group 18), electronic configuration. Negative ions (anions) are formed when an atom gains electrons. Positive ions (cations) are formed when an atom loses electrons. Lewis Structures for Ionic Compounds The overall charge on the compound must equal zero, that is, the number of electrons lost by one atom must equal the number of electrons gained by the other atom. The Lewis Structure (electron dot diagram) of each ion is used to construct the Lewis Structure (electron dot diagram) for the ionic compound. Examples Lithium fluoride, LiF Lithium atom loses one electron to form the cation Li+ Fluorine atom gains one electron to form the anion F- Lithium fluoride compound can be represented asLi+ OR Lithium oxide, Li2O Lewis Structures for Covalent Compounds In a covalent compound, electrons are shared between atoms to form a covalent bond in order that each atom in the compound has a share in the number of electrons required to provide a stable, Noble Gas, electronic configuration. Electrons in the Lewis Structure (electron dot diagram) are paired to show the bonding pair of electrons. Often the shared pair of electrons forming the covalent bond is circled Sometimes the bond itself is shown (-), these structures can be referred to as valence structures . hydrogen fluoride, HF ammonia, NH3 oxygen molecule, O2 Each oxygen will share 2 of its valence electrons in order to form 2 bonding pairs of electrons (a double covalent bond) so that each oxygen will have a share in 8 valence electrons (electronic configuration of neon). Lewis Structure (electron dot diagram) for the oxygen molecule OR &nbsp subscribe to AUS-e-TUTE's free quarterly newsletter, AUS-e-NEWS. AUS-e-NEWS is emailed out in December, March, June, and September. The quickest way to find the definition of a term is to ask Chris, the AUS-e-TUTE Chemist. Chris can also send you to the relevant

The procedure that can be followed when confronted with the name of a compound and you wish to write its formula is as follows: 3. Balance the total positive and negative charge on the cation and anion. You ask yourself do the total positive charge and total negative charge add up to zero. If the answer is no then we ask how many of each ion must we have in order to balance charge. We must have the same number of positive charges as we do of negative charges. Another way of saying that is that they must add up to zero. 4. Once you have determined the number of units of the cation and anion those become the subscripts which are placed right after the respective symbol. Identify the symbols of the cation and anion Copper is Cu and Oxide is O Identify the charge for each and place above the symbol in parenthesis For Copper I that would be 1+ and for Oxide that would be 2- Balance the positive and negative charges Since each Copper is 1+ and each Oxide is 2- then it will take two Cu+ to balance one oxide with a 2- so that 2(1+) + 1(2-) = 0. The numbers outside the parenthesis become the subscripts in the formula Write the formula placing the subscripts right after the symbol they go with. Cu2O Identify the symbols of each part of the name Calcium symbol is Ca and Nitride symbol is N Identify the charge for each Calcium belongs from Group 2 which always has a +2 and Nitride will be a single Nitrogen with a -3 charge Balance charge Since Calcium is +2 and Nitride is -3 the only way to balance them is to have three Calcium's and two nitrides Write the symbol beginning with the symbol that is first in the name and include the subscript after each symbol Ca3N2 Formula writing with Polyatomic Ions 1. Identify the symbol of the cation (first part of the name) and the anion The symbol for Iron is Fe and the symbol for Carbonate which is a polyatomic ion is CO3 2. Identify the valence or charge of each symbol and place it in parenthesis just above the symbol The valence for Iron (III) is 3+ and the valence for Carbonate is 2- 3. Balance the total positive and negative charge on the cation and anion. You ask yourself do the total positive charge and total negative charge add up to zero. If the answer is no then we ask how many of each ion must we have in order to balance charge. We must have the same number of positive charges as we do of negative charges. Another way of saying that is that they must add up to zero. Since an Iron (III) has a +3 charge and the Carbonate ion has a 2- then it would take two Fe3+ units to balance three CO32- units