[ RadSafe ] Hydrox* ions

[Olsson Mattias :MSO]

Dear all,

This was interesting. I may have missed something since I don't follow this thread properly, but how would the uranyl ion produce hydroxyl ions (which I suppose should say hydroxide ion since the hydroxyl group would not be assigned a charge, unless being a radical, in which case it would be neutral)? In water, the uranyl ion would form a complex with hydroxide ions, but that would be a different thing: UO2[2+] + 2 H2O --> UO2(OH)2 + 2 H[+] if fully hydrolyzed. Could also be written as UO2[2+] + 2 OH[-] --> UO2(OH)2. That would rather mean a CONSUMPTION of hydroxide ions (and a lower pH).

Mattias Olsson
Sweden

-----Ursprungligt meddelande-----
Från: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] För James Salsman
Skickat: den 30 maj 2008 15:35
Till: radsafelist; Rainer.Facius at dlr.de
Ämne: [ RadSafe ] teratogenesis can be pre-utero


Dear Dr. Facius,

Thank you for your message:

>... teratogenesis by definition refers to effects
> engendered IN UTERO....

On the contrary, any damage to spermatogonium, oogonium, oocyte, ootid, or ovum chromosomes prior to folliculogenesis may also result in congenital malformations.

The uranyl ion has a strong affinity to DNA, and its catalytic production of hydroxyl ions is a million times more hazardous than it's radiation.  Is the affect on germ cells harder to fathom than its effect on white blood cells?

James Salsman
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