Is magnesium or magnesium chloride a better conductor?

Answer 1

Magnesium has many states, for example Magnesium Choride, or Magnesium carbonate. Magnesium has been experimented with as a Non Heat Conductor successfully using Magnesium Carbonate, and is also potentially argued as a lightweight form of heat resistant coating. Magnesium itself however, as Magnesium ribbon demonstrates, is highly flammable under direct flame, and reacts by giving off extremely bright light and heat, when in flame.

Answer 2

Copper has a melting point of 1084.62 °C, ​1984.32 °F

Magnesium has a melting point of 650 °C, ​1202 °F

... so from a melting point perspective, copper is stronger than magnesium because it will remain solid at a higher temperature.

Copper has a Mohs hardness of 3.0

Magnesium has a Mohs hardness of 1-2.5

... so from a hardness standpoint, copper is stronger than magnesium because it is harder.

Copper has Young's modulus of 110-128 GPa

Magnesium has a Young's modulus of 45 GPa

... from a deformation standpoint, copper is stronger because it takes more force to deform.

The physical ductility of copper is 0.62

The physical ductility of magnesium is 0.43

.. from a ductility standpoint, copper is stronger because it is more ductile - which is sort of obvious when you realize how many size of copper wire you can find.

Overall it would appear that copper is "stronger" than magnesium - unless you are talking about how reactive they are. Magnesium is well know for its use in flares - copper? - eh - it kind of turns green over a long period of time (not nearly as readily reactive).

Answer 3

Magnesium chloride is a better conductor than pure magnesium because it dissociates into ions when dissolved in water, leading to the presence of free ions that can carry an electric current. Pure magnesium does not dissociate into ions as easily, making it a less effective conductor.

Answer 4

Yes. Copper is a better conductor than just about anything (silver is better, and of course superconductors below their critical temperature are perfect).

Answer 5

If you think to hardness copper is more hard than magnesium.

Answer 6

What does "stronger than" mean? Hardness? Harder to oxidize?

Answer 7

The answer depends on what you mean by stronger: less reactive (so chemically stable), less malleable, etc.

Answer 8

magnesium