Aluminum foil for anyuse

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Aluminium foil acts as a total barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moistness, and germs, it is used broadly in food and pharmaceutical packaging. The purpose of aluminium is to make long-life packs (aseptic processing|aseptic packaging) for drinks and dairy goods, which allows storing without refrigeration. Aluminium foil containers and trays are used to bake pies and to pack takeaway meals, ready snacks and long life pet foods.

Aluminium foil is widely sold into the consumer market, often in rolls of 500 mm (20 in) width and several metres in length.It is used for wrapping food in order to preserve it, for example, when storing leftover food in a refrigerator (where it serves the additional purpose of preventing odour exchange), when taking sandwiches on a journey, or when selling some kinds of take-away or fast food. Tex-Mex restaurants in the United States, for example, typically provide take-away burritos wrapped in aluminium foil.

Aluminium foils thicker than 25 μm (1 mil) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

Aluminium foil has a shiny side and a matte side. The shiny side is produced when the aluminium is rolled during the final pass. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge, therefore, for the final pass, two sheets are rolled at the same time, doubling the thickness of the gauge at entry to the rollers. When the sheets are later separated, the inside surface is dull, and the outside surface is shiny. This difference in the finish has led to the perception that favouring a side has an effect when cooking. While many believe that the different properties keep heat out when wrapped with the shiny finish facing out, and keep heat in with the shiny finish facing inwards, the actual difference is imperceptible without instrumentation.The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.

We provide a full range of precision aluminum strip for almost any application. We produce aluminum strip in a wide variety of alloys, including clad composites. Our aluminum strip can be produced in standard dimensions or custom made to your special requirements. We produce both imperial and metric units. We manufacture in compliance with the main international specifications, and tighter tolerances or custom tempers are available upon request. We offer various surface conditions, custom finishes (painting, anodizing, embossing), special processing, and multiple packaging options to meet our customer's unique requirements. The following is a summary of our capabilities.

Manufactured in compliance with the main international specifications and standards, including:  Aluminum Association, ASTM, EN, and DIN.
We can also manufacture in compliance with other international standards including:ASME, SAE, AMS, AWS, FED, MIL, QQ, ISO, BS, AFNOR, JIS and GOST.

Manufactured in compliance with the main international specifications and standards.
Tighter tolerances are available upon request.

Aluminium (or aluminum; see spelling differences) is a chemical element in the boron group with symbol Al and atomic number 13. It is a silvery white, soft, ductile metal. Aluminium is the third most abundant element (after oxygen and silicon), and the most abundant metal in the Earth's crust. It makes up about 8% by weight of the Earth's solid surface. Aluminium metal is so chemically reactive that native specimens are rare and limited to extreme reducing environments. Instead, it is found combined in over 270 different minerals.The chief ore of aluminium is bauxite.

Aluminium is remarkable for the metal's low density and for its ability to resist corrosion due to the phenomenon of passivation. Structural components made from aluminium and its alloys are vital to the aerospace industry and are important in other areas of transportation and structural materials. The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulfates.

Despite its prevalence in the environment, no known form of life uses aluminium salts metabolically. In keeping with its pervasiveness, aluminium is well tolerated by plants and animals. Owing to their prevalence, potential beneficial (or otherwise) biological roles of aluminium compounds are of continuing interest.

The earliest citation given in the Oxford English Dictionary for any word used as a name for this element is alumium, which British chemist and inventor Humphry Davy employed in 1808 for the metal he was trying to isolate electrolytically from the mineral alumina. The citation is from the journal Philosophical Transactions of the Royal Society of London: "Had I been so fortunate as to have obtained more certain evidences on this subject, and to have procured the metallic substances I was in search of, I should have proposed for them the names of silicium, alumium, zirconium, and glucium."

Davy settled on aluminum by the time he published his 1812 book Chemical Philosophy: "This substance appears to contain a peculiar metal, but as yet Aluminum has not been obtained in a perfectly free state, though alloys of it with other metalline substances have been procured sufficiently distinct to indicate the probable nature of alumina."[69] But the same year, an anonymous contributor to the Quarterly Review, a British political-literary journal, in a review of Davy's book, objected to aluminum and proposed the name aluminium, "for so we shall take the liberty of writing the word, in preference to aluminum, which has a less classical sound."

The -ium suffix conformed to the precedent set in other newly discovered elements of the time: potassium, sodium, magnesium, calcium, and strontium (all of which Davy isolated himself). Nevertheless, -um spellings for elements were not unknown at the time, as for example platinum, known to Europeans since the 16th century, molybdenum, discovered in 1778, and tantalum, discovered in 1802. The -um suffix is consistent with the universal spelling alumina for the oxide (as opposed to aluminia), as lanthana is the oxide of lanthanum, and magnesia, ceria, and thoria are the oxides of magnesium, cerium, and thorium respectively.

The aluminum spelling is used in the Webster's Dictionary of 1828. In his advertising handbill for his new electrolytic method of producing the metal in 1892, Charles Martin Hall used the -um spelling, despite his constant use of the -ium spelling in all the patents[58] he filed between 1886 and 1903. It has consequently been suggested[by whom?] that the spelling reflects an easier-to-pronounce word with one fewer syllable, or that the spelling on the flyer was a mistake.[citation needed] Hall's domination of production of the metal ensured that aluminum became the standard English spelling in North America.

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Q:mass of 3.45 moles of Aluminum sulfate?
Aluminum sulfate is Al2S3, so you got two atoms of aluminum and three of oxygen. Hence the molar mass of aluminum sulfate is: 2X16 (two times molar mass of oxygen) + 3X32 (three times molar mass of sulfur). Keep in mind that the molar mass of an elements equals its mass number. We have 128 grams per mole or 128 pounds per lb-mol. Since you have 3.45 moles of Al2S3 you just have to do 3.45 times 128 = 441.6 grams
Q:aluminum nitrate in water: neutral, basic, or acidic?
Aluminum nitrate is the salt produced by the reaction of aluminum hydroxide and nitric acid. Nitric acid is a strong acid. Aluminum hydroxide is a realtively weak base. So the salt will be acidic.
Q:how do you make aluminum rock hard?
First off, use the right alloy. Making the right alloys yourself is a recipe for disaster so it is best to buy them. There are a number of inexpensive alloys of aluminum that can be hard enough to be used as a ring. 5000 series, 6000 series and 7000 series are all pretty hard. If the alloy has a T in front of it, that means you can temper it by heating it then cooling it at a given rate (usually fast). To make the surface just a little bit harder, you can then anodize it (check out the yahoo group anodizing 101 for details - you can get some really pretty colors this way) and seal it. You can also coat it with a thin layer of a clear acrylic. Of course, if you really want ROCK hard, you can oxidize it, combine it with oxygen to make Al2O3 which is corundum, more commonly known as ruby/sapphire - one of the hardest materials known to man. You could also look up someone on the web that makes synthetic rubies and ask them to make you a ring from the ruby itself...then maybe do some engraving and gold leaf on it so that the metal is set in the gem rather than vice versa! That would be pretty cool! Also about as hard as you can get and totally unique.
Q:What can you put on aluminum to make it permanently black?
Aluminum You could take it to someone that powder coats metals.
Q:Why doesn't aluminium oxide dissolve in water?
Aluminium gives away 3 electrons, and two aluminium atoms are combined with 3 oxygen atoms, the charge is just to great for it to gracefully dissolve.
Q:Why do tin/aluminium cans have grooves in the side?
This is the correct answer. This is a Microsoft Interview Question Source: How Would You Move Mount Fuji?: Microsoft's Cult of the Puzzle -- How the World's Smartest Companies Select the Most Creative Thinkers There was a time when cans were in rectangular shape and made of heavy steel. As can companies became more cost and environment conscious, they figured out ways to switch to thinner aluminum cans. The thin aluminum is less strong. Like eggshells, today's cans are just about as thin as they can be and still reliably enclose their contents. This demands architectural tricks that weren't necessary with the steel cans. The thickest and strongest part of the can is the top, attached separately with a crimp. The top has to stand the stress of someone ripping open the flip top. Because the top is thicker metal, the manufacturers found it desirable to minimize its diameter. So they shrunk the top a little. This meant adding a bevel at the top to connect it to the rest of the can. (They couldn't shrink the diameter of the whole can, or it would hold less beer.) Once you shrink the top, you also have to shrink the bottom, for the cans are supposed to stack. Both top and bottom are tapered. There are other reasons why thebottom is tapered. The bottom and middle are pressed from a single piece of thin aluminum, eliminating the extra step of attaching a separate bottom to the can. This is easiest to do when there is a bevel rather than a sharp right angle. The bevel also makes the can a little more dent-proof at the ends. You could get a similar strengthening effect with a convex bottom, but then the cans wouldn't stack.
Q:What is Aluminum Coating on a roof?
Why you would be coating a flat roof with Aluminum coating is beyond anything I have learned. Flat roofs should have a felt and tar coating to water proof them. Aluminum roof coating is used mostly on mobile homes to reflect heat because mobile homes don't have attics to trap the heat and carry it to vents. It also seals the water out at the metal seams. Aluminum coating is a type of polymer that has aluminum flakes in it. It is brushed on like a thick coat of paint and allowed to dry.
Q:Which female deodorant doesn't have aluminum? ?
Deodorant with aluminum also causes breast cancer. I use Toms of Maine deodorant, which is aluminum-free.
Q:Calculate the specific heat of aluminum?
Heat gained by water = heat lost by aluminum Heat = H mass = m specific heat =c change in temperature = dT H = mcdT mcdT for water = mcdT for Al (23.2)(1.00)(13) = (25.0)(c(Al))(33-98) c(Al) = (23.2)(1.00)(13)/(25.0)(65) = 0.186 This value is just a bit below the known value of specific heat for aluminum, where c = 0.217 cal/g.C
Q:Could someone please explain what this means about aluminum cans?
Since aluminum is melted down recycle it is easier to melt down cans as we know.To extract the aluminum from the earth takes more to process there for volume of gas cost more;

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