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Manganese can be ferromagnetic after a special treatment. Otherwise it is non reactive to magnetic fields in all four of its allotropic forms.

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What is the formula for maganese(3) phosphide?

This phosphide is MnP.


What items that are made from maganease?

Maganese, often referred to as manganese, is primarily used in the production of steel and iron alloys to improve their strength and hardness. Additionally, it is used in the manufacturing of batteries, particularly alkaline and lithium-ion types. Other applications include the production of fertilizers, ceramics, and glass, where manganese compounds can enhance color and durability.


What are the minor elements?

The minor elements, or micro elements are: Iron ( Fe ), Manganese ( Mn ), Selenium ( Se ), Copper ( Cu ), Iodine ( I ), Zinc (Zn), Fluorine ( Fl ), Cobolt ( Co ), Molybdenum ( Mo ) and Chromium ( Cr ).


Why is ferrous alloy has more corrosion resistant then iron?

An alloy is a mixture of metals and a ferrous alloy is an alloy who's main constituent is iron. Iron in itself is extremely susceptible to corrosion, however, with the addition of other metals to create a ferrous alloy, such as the addition of slag (Such as in wrought iron), Nickel (Alnico, Invar, etc), Maganese (Bismanthol), Chromium (Kanthal), Titanium (Ferrotitanium) and so on give the alloy it's corrosion resistance. So, in short, almost, if not all ferrous alloys contain a constituent that is corrosion resistant, hence why ferrous alloys are more resistant to corrosion that straight iron.


How do you improve proof stress in aluminium alloys?

aluminium doesnt have a definite yielding point like steel, in the force vs extension graph. Thus by convention engineers have sat down together and agreed to make 0.2% the offset. draw a line parallel to the linear proportionality obeying hookes law, make the extension intercept at 0.002 (0.2%) then see where this intersects with the graph, this will give you the yield strength of the material. materials like steel and ceramics don't require a proof stress however materials such as polymers, composites and non-ferrous metals (aluminium, copper) do.