Aluminum foil for use blister

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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:Why does aluminum react this way?
Aluminum reacts like the elements in its group, the elements that are above and below it, such as Boron and Gallium. This is due to its valance electrons which you can find out through its electron configuration. It has 3 valance electrons, while the other elements you mentioned follow different rules due to their valance electrons. Ultimately, aluminum does not act like those because it is not in that family/group.
Q:How to measure the thickness of aluminium foil flake?
Measure the correlation value of aluminized paper with a dividing rule, then you can get the area(s) of it. Measure the mass of aluminized paper with a balance, then you can get its volumr by using the density formula m=PV(the density of aluminium can be gotten from density table).Finally, using the volume formula v=hs, you can get the thickness of it.
Q:How many moles of O2 are needed to react with 2.09 mol of aluminum? .?
1.57 mol O2 4Al + 3O2-- 2Al2O3 2.09 * (3/4) = 1.5675 = 1.57 mol O2 (with sig figs)
Q:how much aluminum can be produced?
4Al + 3O2 === 2Al2O3 Aluminum and oxygen are of their elemental states, they usually react to type a compound. So it is a redox reaction. Mentioned a different way, the oxidation numbers of aluminum and oxygen start at zero and alter to +3 for aluminum and -2 for oxygen, and that is oxidation and reduction.
Q:How does aluminum become magnetized?
When you say magnetic, was the aluminum attracted to the magnet or repelled? If it was attracted I don't know what was going on, but if it was repelled and only for a slight second the reason may have been electrical currents induced in the aluminum by the magnetic field created a magnetic field in opposition to that of the magnet. In this case the phenomenon would be induction and electromagnetism.
Q:What is the length of the aluminum rod?
Thermal conductivity: Copper: 9.2*10-2 (kcal/sec)/((m^2)(Cdegree/meter)) Aluminum: 4.9*10-2 (kcal/sec)/((m^2)(Cdegree/meter)) We need to assume the rods don't loose any heat to the surroundings. Therefore the kcals conducted through both rods is equal. To calculate the heat conducted per second by the copper, multiply its conductivity, 9.2*10-2 (kcal/sec)/((m^2)(Cdegree/meter)), times (A*50Cdegree/.88 m). Set that expression equal to aluminum's conductivity times A*50Cdegree/L. Simplify and solve for L. Edit: I don't know why the conductivity lines are truncated. Maybe Yahoo is making sure it is compatible with any screen resolution. Anyway, the truncated lines, that I see, should end with )(Cdegree/meter)).
Q:How to remove words on aluminium foil used in medicine package? Is there any easy way?
Words printed on it is organic matter and can be corroded by concentrated sulfuric acid. Since aluminium plate is protected by oxidation film in its appearance, it's ok to do so. But you should be careful when you operate for plastic plate may also be corroded. Only teflon and high density polyethylene are anti-corrosion, but they are with higher price and therefore won't be used in normal situation.
Q:A piece of aluminum foil is available and asked how to measure its thickness, such as the title, thank you
Then balance the quality of foil paper M. The density formula M = P V can calculate the volume of aluminum foil. (of which the density of aluminum can be obtained), and then the volume formula V = hS, you can calculate the height of the foil paper. Thank you、
Q:does using aluminum foil for hookah mess up ur brain?
Nope.
Q:Why is the anode of Li ion battery made of aluminium foil and negative copper foil?
Therefore, the selection of these two metals mainly takes into account their stability at different potentials.Of course, there are some metals, such as Ti, which can either be positive collector or negative collector. But the cost of Ti is relatively high, it is also difficult to process very thin.

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