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KI solution

KI solution - Chemistry Forum

KI solution - Chemistry Forum. Discuss chemical reactions, chemistry.


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  #1  
Old 11-10-2003, 08:30 AM
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Default KI solution



I have noticed that aqueous dilute solutions of KI develop some kind of
whitish or grayish substance after a few weeks. Anyone know what this
substance is?

Thanks.

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  #2  
Old 11-10-2003, 01:58 PM
dlzc@aol.com \(formerly\)
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Default KI solution

Dear noepzion:
<[Only registered users see links. ]> wrote in message
news:[Only registered users see links. ]...

You keep it closed and in the refrigerator, right? By dilute, you mean 1%
or so, right? Sea water has more salt than this, and it supports life...

David A. Smith


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Old 11-11-2003, 09:15 AM
*selah*
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Default KI solution


Would dilute KI, (about .5%) support life better than NYC water that's
been exposed to the air for a long time? Or than distilled water that's
been sitting exposed to the air and plastic containers?

In article <mQMrb.24549$PD2.24515@fed1read05>, [Only registered users see links. ] (formerly) wrote:


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Old 11-11-2003, 01:18 PM
William Penrose
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Default KI solution

On 10 Nov 2003 08:30:53 GMT, <[Only registered users see links. ]> wrote:


Bacteria or algae. Make it concentrated, and dilute as needed.

Bill Penrose

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  #5  
Old 11-11-2003, 02:12 PM
dlzc@aol.com \(formerly\)
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Default KI solution

Dear *selah*:

"*selah*" <[Only registered users see links. ]> wrote in message
news:[Only registered users see links. ]...

Probably not. Most likely the medium would only determine *which* classes
of organisms thrived. The "grey mist" would be green or black or ...

David A. Smith


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  #6  
Old 11-11-2003, 02:12 PM
Ralconte
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Default KI solution

*selah* <[Only registered users see links. ]> wrote in message news:<[Only registered users see links. ]>.. .
I'd say yes. Trace levels of potassium or calcium can greatly
increase the chance of microbial growth in distilled water. Now, the
iodine ion could also be a micronutrient. I suppose microsidal
activity is associated with free iodine in water, not the anion, but I
could be all wrong there.

Please remember that your distilled water contains enough orgainic
material to support microbes, it's the lack of trace elements that
keeps it clean for a few weeks.
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