CALCIUM METAL produces hydrogen gas in water

[myaccount140]

Cool =P

[Roweanos212]

it fizzles if you put a drop of water onto the calcium and hydrochloric acid. I love doing lab experiments in chemistry!

[orkunvemosi]

does the amount of hydrogen change with higher temperature of water???

[spotlightman1234]

too bad calcium is so expensive

[Mrpantymelt]

is it possible to produce hydrogen like this and then reclaim the calcium without using hydrogen.. why not make fuel this way, is it too expensive.

[superdau]

Basic physics. If a reaction releases energy, the opposite reaction needs energy. And due to the second law of thermodynamics the net effect will never be an energy gain.

So, it's not not done because it's expensive, but because you don't get anything out of it. Calcium does not exist in pure form in nature because it immediately reacts with other elements. To get Ca in metallic form you have to expend quite an amount of energy.

[vmelkon]

@Mrpantymelt They make calcium by melting CaCl2 which requires a pretty high temp (about 800 C) and then electrolysis. I don't know how they melt it but it makes it costly. If you want to make H2, there are better ways.

[GodPiggyX]

Lol the cylinder graduated

[AdultmentSystem]

if u ate that wouldu turn into a tank 0.o???

[Bardhil12]

Nice one.

Ca + 2H2O ---> Ca(OH)2 + H2

[keepup32323]

Ca+H2O->CaOH+H: If you ever try to attempt this Ill warn you not to touch the water after the reaction because it will formed a caustic soda.

[cyberscann54]

just like pure aluminum in water.

Do you know if it is possible to reclaim the calcium and do it again like aluminum.

[m3sca1]

i just posted the same experiment-pls ellaborate on the reclaiming process.

[cyberscann54]

I have seen videos of people doing it with gallium with aluminum. since calcium reacts and bonds with the oxygen just like aluminum

[Basco36]

oh really, how?

[cyberscann54]

the gallium keeps stripping the oxygen layer off the alumina (aluminum oxide) creating a pure aluminum surface for the water to be separated from what I've read. I also read that the Gallium is not consumed in the process and that its a repeating cycle.

[lightningsnip3]

whats happening?

[Basco36]

the metal reacts with the water producing pure hydrogen gas.

[drslumpi]

nice !

[Basco36]

thankyou