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As far as I know thermite is a typical redox reaction where $Al + Fe^{3+} \rightarrow Fe + Al^{3+}$$\ce{Al + Fe^{3+} -> Fe + Al^{3+}}$ happens. I guess the activation energy is very high, because you need to split the $Fe_2O_3$$\ce{Fe_2O_3}$ into $Fe^{3+}$$\ce{Fe^{3+}}$ and $O^{2-}$$\ce{O^{2-}}$. Probably you need molten aluminium too at 660°C$\pu{660°C}$ to ignite it. 

I was wondering whether it is possible to ignite thermite in a water solution. Since $O^{2-} + H_2O \rightarrow 2OH^-$$\ce{O^{2-} + H_2O -> 2OH^-}$, I guess a very acidic solution could help to start the reaction, since $OH^- + H^+ = H_2O$$\ce{OH^- + H^+ <=> H_2O}$. On the other hand it could mean a $2Al + 6H^{+} \rightarrow 2Al^{3+} + 3H_2\uparrow$$\ce{2Al + 6H^{+} \rightarrow 2Al^{3+} + 3H_2\uparrow}$ reaction too. 

Any idea whether thermite can be ignited this way, for example with a drop of concentrated acid? Or will it just result hydrogen gas, because that reaction has a lot lower activation energy?

As far as I know thermite is a typical redox reaction where $Al + Fe^{3+} \rightarrow Fe + Al^{3+}$ happens. I guess the activation energy is very high, because you need to split the $Fe_2O_3$ into $Fe^{3+}$ and $O^{2-}$. Probably you need molten aluminium too at 660°C to ignite it. I was wondering whether it is possible to ignite thermite in a water solution. Since $O^{2-} + H_2O \rightarrow 2OH^-$, I guess a very acidic solution could help to start the reaction, since $OH^- + H^+ = H_2O$. On the other hand it could mean a $2Al + 6H^{+} \rightarrow 2Al^{3+} + 3H_2\uparrow$ reaction too. Any idea whether thermite can be ignited this way, for example with a drop of concentrated acid? Or will it just result hydrogen gas, because that reaction has a lot lower activation energy?

As far as I know thermite is a typical redox reaction where $\ce{Al + Fe^{3+} -> Fe + Al^{3+}}$ happens. I guess the activation energy is very high, because you need to split the $\ce{Fe_2O_3}$ into $\ce{Fe^{3+}}$ and $\ce{O^{2-}}$. Probably you need molten aluminium too at $\pu{660°C}$ to ignite it. 

I was wondering whether it is possible to ignite thermite in a water solution. Since $\ce{O^{2-} + H_2O -> 2OH^-}$, I guess a very acidic solution could help to start the reaction, since $\ce{OH^- + H^+ <=> H_2O}$. On the other hand it could mean a $\ce{2Al + 6H^{+} \rightarrow 2Al^{3+} + 3H_2\uparrow}$ reaction too. 

Any idea whether thermite can be ignited this way, for example with a drop of concentrated acid? Or will it just result hydrogen gas, because that reaction has a lot lower activation energy?

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Can you ignite the thermite reaction in a solution?

As far as I know thermite is a typical redox reaction where $Al + Fe^{3+} \rightarrow Fe + Al^{3+}$ happens. I guess the activation energy is very high, because you need to split the $Fe_2O_3$ into $Fe^{3+}$ and $O^{2-}$. Probably you need molten aluminium too at 660°C to ignite it. I was wondering whether it is possible to ignite thermite in a water solution. Since $O^{2-} + H_2O \rightarrow 2OH^-$, I guess a very acidic solution could help to start the reaction, since $OH^- + H^+ = H_2O$. On the other hand it could mean a $2Al + 6H^{+} \rightarrow 2Al^{3+} + 3H_2\uparrow$ reaction too. Any idea whether thermite can be ignited this way, for example with a drop of concentrated acid? Or will it just result hydrogen gas, because that reaction has a lot lower activation energy?