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De-ionized Water Discussion

 

De-ionized water

Date: Mon, 04 Oct 2004 07:44:47 -0600.  Subject: De-ionized water for HV probe

Original poster: "Denicolai, Marco" <Marco.Denicolai@tellabs.com>
 
Hello all, Can anybody tell me, is de-ionized water also free from dissolved gases?  I ask this because I'm going to fill my HV water probe (see http://www.iki.fi/dncmrc/work/hv_divider.htm) with distilled and de-ionized water instead than distilled and boiled water.  This thing is going to be 2.7 m tall, containing 20 liters of water inside.  We are going to hang it from the roof (16 m high) on the top of the Thor TC.  Regards.
 

Date : Mon, 04 Oct 2004 13:08:47 -0600.  Subject : Re: De-ionized water for HV probe

Question:  Is de-ionized water also free from dissolved gases?

No.. It is not.  you need to heat it to evolve the gases (distilled water tends to have fewer dissolved gas, because of the production process).

Simply pouring the water from one container to another will cause it pick up some gas, too... Unless you're pouring in a blanketing atmosphere of something with low solubility (or water vapor).

Date : Mon, 04 Oct 2004 13:09:40 -0600
Subject : Re: De-ionized water for HV probe
Try looking at his link. Also once you put high voltage to it, could it be there will be gas formed?
http://www.labconco.com/pdf/h20_purification/guide_water.pdf

 

Date : Tue, 05 Oct 2004 23:31:07 -0600.  Subject : Re: De-ionized water for HV probe

Original poster: "robert heidlebaugh" <rheidlebaugh@desertgate.com>

NO.....NO  !   Deionized water has gas and soluble salts  contained in it.  It has " hard water" elements like calcium removed , but it is not as pure as distilled. It makes a good input for a still to make distillation of
better quality.  Robert   H.

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