Manganese Oxide mixed with HCL.

[thomasxc]

Could someone please tell me What would be created when manganese oxide from an alkaline battery mixed with HCL? Theoretically, as far as I know, it should be pink, but I got a green substance.Thanks in advance

 

[mrjeffy321]

Manganese dioxide (MnO2), from batteries, can react with hydrochloric acid (HCl) to produce chlorine gas (Cl2) and manganese chloride (MnCl2). In its hydrated form, manganese chloride tetrahydrate (MnCl2 * 4 H2O) is pink.

Perhaps when one has a very concentrated solution of MnCl2 it is green? This is just a guess, but it is the case with copper(II) salts too. For example, hydrated copper chloride forms blue solutions but very concentrated solutions appear dark green / black.

 

[Nemus]

MnCl2 is never green. Mn(V) ions are...

 

[chem101]

When you add HCl to MnO2, Chlorine a dark green gas is released. Maybe that's what you saw.

 

[Borek]

If the amount of chlorine was large enough for a dark green color to be observed, OP would choke to death before getting to keyboard and reporting what he have seen.

 

[chem101]

I have personally experimented with MnO2 from a battery mixed it with Muriatic Acid and a dark green Chlorine is observed!

 

[Borek]

a dark green Chlorine is observed

Chlorine is not dark green. It is pale yellow-green, but not dark. No doubts it will be observed, but the color will be not dark green.

OP wasn't clear but he didn't stated "gas", nor "choking gas", so I guess he referred to the color of a solid or solution.

 

[chem101]

I stand corrected. I guess thomasxc's green substance is still a mystery!