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Posted by: Pixie Dust ( )
Date: December 10, 2010 07:56PM
OT - Question for our board chemists: As I understand it, adding acid to water is safe to do. However, adding water to acid can cause an explosion. So how is it that I can add water to my car's battery and it not explode? Love, Pixie (n/t)


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Posted by: stillanon ( )
Date: December 10, 2010 08:01PM
Re: OT - Question for our board chemists: As I understand it, adding acid to water is safe to do. However, adding water to acid can cause an explosion. So how is it that I can add water to my car's battery and it not explode? Love, Pixie

As I understand, the acid in your battery is already diluted with H2O. So, in theory, you're just dilueting it more.
Really- you're trying to make meth without blowing yourself up-right??

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Posted by: jpt ( )
Date: December 10, 2010 08:19PM
link

http://antoine.frostburg.edu/chem/senese/101/safety/faq/always-add-acid.shtml

As mentioned above, the car battery's solution is already diluted.

For that matter, drinking water adds water to stomach acid....



Edited 1 time(s). Last edit at 12/10/2010 08:22PM by jpt.

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Posted by: matt ( )
Date: December 10, 2010 10:00PM
Re: OT - Question for our board chemists: As I understand it, adding acid to water is safe to do. However, adding water to acid can cause an explosion. So how is it that I can add water to my car's battery and it not explode? Love, Pixie

I worked in a chemical lab, years ago, and we had this drummed into us: "Acid to water, like you oughta!"

> Here lies Gillian, still and placid;
Who added water to the acid.
Clever Jane did as she oughter;
Added acid to the water.

>And the reason for doing this is not simply to do with splashing, per se: If you add water to acid, the first drops of water will react completely and exothermically with the acid, very likely boiling it. If, on the other hand you add the acid to the water, the acid reacts completely with the water, and dissipates.
http://everything2.com/title/Do+like+you+oughta%252C+add+acid+to+water

We always mixed acids in a fume cupboard, for added safety.

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Posted by: utahmonomore ( )
Date: December 10, 2010 10:01PM
Re: OT - Question for our board chemists: As I understand it, adding acid to water is safe to do. However, adding water to acid can cause an explosion. So how is it that I can add water to my car's battery and it not explode? Love, Pixie

You are supposed to use distilled water in the battery!!

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