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Question:

Is aluminum foil actually made of aluminum in its pure elemental form? Or is it aluminum oxide?

Is aluminum foil actually made of aluminum in its pure elemental form? Or is it aluminum oxide?

Answer:

Electric Blanket Pregnancy
I have always heard this is a no-noI have not heard if it scientifically validHowever, I do not use electric blankets anywayThey can be dangerous in a fire sense and they are pretty wastefulGo for a down comforterThey are expensive but are so much better than an electric blanketPlus, you use no electricityYour own body provides the heat.
Some years ago, they recommended NOT using an electric blanket when pregnantI don't remember the details of the recommendationI don't know the current recommendations, but a good, safe solution is to turn on your electric blanket until it is toasty and then turning it offThe blankets will maintain your body warmth in your little blanket nest.
Electric Blanket Pregnant
Aside from trace compounds, aluminum foil is made from pure aluminum, but various alloying metals (Cu, Mg, Mn) are used to give desired characteristics (e.gstrength and heat-transfer) in amounts of around 2 to 8 percent leaving the Al about 92-98% pureWhen exposed to air it begins to bond with O2 and develops AlO2and surface coatings are used to slow the oxidation process.

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