Tadeuz Jalocha (firstname.lastname@example.org)
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?
All i'm lacking for such an experiment is the Quartz tube.
Grateful for any input,
> 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
This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:39:37