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Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars. ... per mass of element contained. This implicitly puts the value of compounds ...
Aluminum can prices vary by region and are based on weight. The average recycling value per pound of cans in the U.S. is currently $0.56. How many aluminum cans are in a pound?
Aluminium (or aluminum) metal is very rare in native form, ... Hall's production grew to 385 pounds (175 kilograms) at a cost of $0.65 per pound. [91]
Aluminium is still very cheap compared to other elements used to build batteries. Aluminium costs $2.51 per kilogram while lithium and nickel cost $12.59 and $17.12 per kilogram respectively. However, one other element typically used in aluminium air as a catalyst in the cathode is silver, which costs about $922 per kilogram (2024 prices). [15]
Despite carbon's resistivity against corrosion, it is still consumed at a rate of 0.4–0.5 kg per each kilogram of produced aluminium. Cathodes are made of anthracite; high purity for them is not required because impurities leach only very slowly. The cathode is consumed at a rate of 0.02–0.04 kg per each kilogram of produced aluminium.
Aluminium bronzes are most valued for their higher strength and corrosion resistance as compared to other bronze alloys. These alloys are tarnish-resistant and show low rates of corrosion in atmospheric conditions, low oxidation rates at high temperatures, and low reactivity with sulfurous compounds and other exhaust products of combustion.
The most straightforward way to weight cost against properties is to develop a monetary metric for properties of parts. For example, life cycle assessment can show that the net present value of reducing the weight of a car by 1 kg averages around $5, so material substitution which reduces the weight of a car can cost up to $5 per kilogram of ...
Crystal of potassium alum, KAl(SO 4) 2 ·12H 2 O. An alum (/ ˈ æ l ə m /) is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula X Al(SO 4) 2 ·12 H 2 O, such that X is a monovalent cation such as potassium or ammonium. [1] By itself, "alum" often refers to potassium alum, with the ...