Tadeuz Jalocha (tjalocha@puc.cl)
Mon, 21 Jun 1999 14:09:01 -0300
Hello to all all Aqua Regia haters!
How about producing Gold Chloride using Chlorine gas?
I mean in a completely sealed appartus:
Production with Hypocholrite and HCl, Passing thru Conc. Sulfuric to
dehidrate, then passing in a Si02 tube over heated Gold, then passing
thru a strong solution of NaOH ot neutralize.
Would it be saver, better?
Any thoughts?
All i'm lacking for such an experiment is the Quartz tube.
Grateful for any input,
Tadeuz Jalocha
KPernicano@aol.com wrote:
>
> Additionally, there may be some medical pracititioners who can support this:
>
> One of the gases given off by the process of making any noble metal salt
> using aqua regia is NO2, Nitric Dioxide. The immediate effect of a good
> whiff of this gas, which looks like rustcolored dust, is irritating and
> choking. Enough of it will bring death to its victim, but not for 48-96
> hours. It apparently oxidizes and then necrotizes the lung tissues ( a
> technical way of saying that is sort of bleaches them and then causes
> suffocation by destroying tissue). HCL gas does the same thing, but it is
> much more acrid and people are very much aware of their exposure, and can
> usually get away before it causes such serious damage as with nitric oxides.
> Although we don't use it much in alt-processes, hydroflouric acid is another
> deadly one with the potential to be subtly fatal in small doses. The sneaky
> thing about these acids is that the potential for death is not immediate, as
> with cyanide, so people may be led into a false sense of security when they
> do not feel ill effects immediately.
>
> Anyway, IF anyone decides to make any salts using Aq.Reg., take heed of the
> expert chemists on the list. I work in a hospital environment, and I can
> tell you that exposure to nitrogen oxides is not a thing to toy with.
>
> Take care,
>
> -K pernicano
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