Does rain kill electric stuff?

[TW]Fox;12232309 said:
If people are now permitted to ask GD which sandwich filling is best then I can ask the worldly wise for advice on water damaged electricals. I'm not an expert on water damaged electronics but who knows, someone on here might be.
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In that case, carry on. I simply didn't expect to see you asking whether water could damage electronic kit and being serious about it. And I think de-ionised water is the best suggestion if you've already tried drying it out and that doesn't work.
 
It was an amusing faux-stupid thread title. Of course I'm aware that water can damage electronic kit - thats the point in this thread.

It got wet, now it doesnt work - therefore quite obviously water CAN damage electronic kit.

The question in the thread is... how can it be rescued.
 
You have a spare remote? if so buy new one about £30 and code it with the spare.

If not then try the de-ironised water its none conductive :)
 
Ben M said:
^ except pure water is conductive.
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rubbish. water itself is an excellent insulator. it has no free ions for the transfer of current. only impure water has the aformentioned conducty-bits in it. like Salts and minerals...
 
Aod said:
rubbish. water itself is an excellent insulator. it has no free ions for the transfer of current. only impure water has the aformentioned conducty-bits in it. like Salts and minerals...
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no free ions? So pure water doesn't have a pH of 7 then?
 
The question in the thread is... how can it be rescued.
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Your best bet, as you've already got it open is to clean the PCB (and the switch contacts depending on the type of switch) with Isopropyl Alcohol (IPA), its available from electronics suppliers in spray cans, beleive its also sold in pharmacy stores as rubbing alcohol, or if you have any CD cleaner, thats normally largly IPA based.

(Or being a geek, you might already have some for removing thermal paste from computer chips :p )

Anyway, just take the battery out, give it a good clean with the IPA, leave it 5 mins to evaporate, and try it again
 
Biohazard said:
PH whatever, de-ionised water is not conductive.
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oh okay, I better go and tell everyone in the science world that water does not dissosciate into H+ and OH- ions in that case. Because they're getting things awfully wrong.
 
Ben M said:
oh okay, I better go and tell everyone in the science world that water does not dissosciate into H+ and OH- ions in that case. Because they're getting things awfully wrong.
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Your teacher is clearly a prat.

Removal of ions causes water's resistivity to increase, providing a convenient measurement for the exact extent of deionization. Ultrapure deionized water has a theoretical maximum resistivity of 18.31 MΩ·cm and a theoretical minimum conductivity of .0545 microsiemens/cm, compared to around 15 kΩ·cm and 70 microsiemens/cm for tap water. Deionized water's high resistivity allows it, in some very highly specialized instances, to be used as a coolant in direct contact with high-voltage electrical equipment. Because of its high relative dielectric constant (~80), it is also used (for short durations) as a high voltage dielectric in many pulsed power applications
 
Biohazard said:
Your teacher is clearly a prat.

Removal of ions causes water's resistivity to increase, providing a convenient measurement for the exact extent of deionization. Ultrapure deionized water has a theoretical maximum resistivity of 18.31 MΩ·cm and a theoretical minimum conductivity of .0545 microsiemens/cm, compared to around 15 kΩ·cm and 70 microsiemens/cm for tap water. Deionized water's high resistivity allows it, in some very highly specialized instances, to be used as a coolant in direct contact with high-voltage electrical equipment. Because of its high relative dielectric constant (~80), it is also used (for short durations) as a high voltage dielectric in many pulsed power applications
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pure water has a H+ ion concentration of 1x10^-7 moldm^-3 and an OH- concentration that is the same. They are charged and so can flow to conduct electricity.

also, lol, nice:
http://answers.yahoo.com/question/index?qid=20080520112830AAMeyE0
 
Ben M said:
oh okay, I better go and tell everyone in the science world that water does not dissosciate into H+ and OH- ions in that case. Because they're getting things awfully wrong.
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No we already know that high school chemistry is mainly bull ;)
 
Tefal said:
No we already know that high school chemistry is mainly bull ;)
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hydronium ion and OH- ion then. either way there are charged particles.

Biohazard said:
First link I could find.

Argue all you want, you are wrong. Pure water is not the same as de-ionized.

The internet is all lies.

bye bye
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the internet is all lies? your info is a direct copy-paste from the internet.

and you're right, it isn't the same, pure water is just that, pure, where as de-ionised isn't necessarily 100% pure.
 
Biohazard said:
Your teacher is clearly a prat.

Removal of ions causes water's resistivity to increase, providing a convenient measurement for the exact extent of deionization. Ultrapure deionized water has a theoretical maximum resistivity of 18.31 MΩ·cm and a theoretical minimum conductivity of .0545 microsiemens/cm, compared to around 15 kΩ·cm and 70 microsiemens/cm for tap water. Deionized water's high resistivity allows it, in some very highly specialized instances, to be used as a coolant in direct contact with high-voltage electrical equipment. Because of its high relative dielectric constant (~80), it is also used (for short durations) as a high voltage dielectric in many pulsed power applications
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If you didn't copy/paste from wiki or somesuch then you, sir, have the big clevars in your head :)
 
[FnG]magnolia;12232569 said:
If you didn't copy/paste from wiki or somesuch then you, sir, have the big clevars in your head :)
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No copied, as could quite clearly be accertained from the lack of scientific talk in my previous posts.

I also done well at chemistry, and am still adamant he is wrong scientific background or not.
 
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