what exactly is deionized water?

And this concludes the Science Channel takeover of CoinTalk

but seriously great info guys THANKS!

 

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RWB is mostly correct. The impurities will cause and/or block reactions.

Sorry, Rickie. Adding water with a pH of 10 might raise the pH of battery acid from 1 to 1.001. A pH of 7.5 is 1/2,000,000 the strength of acid.

 

So distilled water has a neutral pH?

 

Perfectly distilled water has a pH of 7.0 - dead neutral.

 

What would adding deionized water to a car battery do? Kinda thinking from prior posts that you worked in the chemical industry for many years.

 

rlm... I mentioned that doing this repeatedly over time would dilute the acid..of course 1 or 2 instances would not ammend the concentration that much. The ratio of water per cell in the old batteries was hap hazardly over filled many many times. Dilution occurs rapidy at a mili molar rate. Also used 7.5 just as an example...not being precise.

This is not the sole reason for degrading electrical reaction between the plates and the solution. Often the over flow would dispel much of the acid over time cuasing significant build up on the terminals. Battery plates exposed to air will immediately sulphate due to electrolyte loss. This was the biggest culprit in the old style acid type batteries.

The next eveolutions was adding silica gel beads to dissolve into the acid rendering it to become more of a gel like solution and not being so spill friendly.

The pH scale runs from 0-14 for those that want to know...7 being neutral above 7 is basic below 7 is acidic.

Regards,

RickieB

 

I worked for Xerox for 30 years. Not exactly what is generally called the chemical industry, but I was making their polymer for most of those years.

 

keep clicking

Don't know who to quote 1st but this thread is delightful. Keep up the good work.:hail:

"Pure Water" (universal solvent) is non conductive. Just about everything it comes in contact with makes it different.

But like ETOH you can not even expose it to ANYTHING without it doing something. Production is one process. Application another.

Two molecules bumped into each other one day.

The 1st one asked, "Are you OK?"

2nd one responded," Oh no, I think I lost an electron!"

1st asked, "You sure?"

2nd replied, "I'm positive.":bigeyes:

 

Precisely, you use an acetone rinse to dry the water off the coin. Since the water is infinitely soluble in acetone the rinse dissolves and carries off almost all the water and the molecules of what remains are widely disbursed in the acetone and evaporate off along with the acetone in seconds. (Water tends to evaporate relatively slowly at room temperature because of the strong attractive forces between the molecules. Disbursing them in the acetone eliminates those attractions simply by increasing the distance between molecules and the water evaporates off as fast as the acetone does.)

 

Water and acetone actually form an azeotrope. The mixture of water and acetone evaporate faster then either water or acetone by themselves.