H2SO4 - solid or liquid?

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rabiticide - 01 Jul 2008 01:20 GMT

The reason I want to know is that I overcharged my motorcycle battery
and the water is gone. Did the H2SO4 boil away as well? Or is it a
solid which precipitated out?

I'm going to put my safety glasses on and add distilled water...

Here goes

rK

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Yevgen Barsukov - 01 Jul 2008 15:52 GMT

> The reason I want to know is that I overcharged my motorcycle battery
> and the water is gone. Did the H2SO4 boil away as well? Or is it a
[quoted text clipped - 5 lines]
>
> rK

It is liquid. If you see a completely dry battery, only thing that
will
work is to refill with fresh H2SO4 / water battery mix.

Regards,
Yevgen

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rabiticide - 01 Jul 2008 19:42 GMT

Battery now works!!!
I put distilled water into my dry, dead battery, then I charged it,
and it cranks beautifully and started my motorcycle!!!

The conducty thingies (anodes and cathodes?) don't go all the way down
so I think I boiled the water down to that level at which point the
contact was broken and the overcharging stopped. This is my
hypothesis. The H2SO4 didn't go anywhere because it was below that
level and has a much higher boiling point than water.

I was asking guys over at the motorcycle group and they were saying
that a lot of battery chargers are too powerful for motorcycle
batteries. Thanks for the help!!

rK

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Natural Science Forum / Chemistry / Electrochemistry / July 2008

H2SO4 - solid or liquid?