The Vespiary

The Hive => Methods Discourse => Topic started by: Archaeoptrix on May 07, 2002, 11:11:00 PM

Title: 7%soln->HgI2?
Post by: Archaeoptrix on May 07, 2002, 11:11:00 PM

Hey Everybody,

  Got 1 gal. solution of ...

     7% iodine
     80% ipa
     13% h2o

From the notes I've read here...to make enough HgI2 for a 1x MM alhg, one plops .3-.5g Hg (l) into a 30ml solution of 2% iodine tincture...shake and bake.  Now, my questions are...

1) I'm sure I should use 99% ipa to dillute the solution down to 2%, no?  Any other suggestions...MeOH or EtOH?
2) After the solution is dilluted down to 2% iodine, its still going to be ~3-4% water.  Is this going to be a problem
       adding this extra h2o to a 1x MM al-hg rxn.?

Cheers...a

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Load"*",8,1

Title: Why dilute?
Post by: halfapint on May 08, 2002, 03:27:00 AM

My version of this product contains no added water, just 99% isopropanol. I see no reason to perform any dilution: your solution is of greater purity than the 2% tincture, so why adulterate it? The formulaic procedure you are following, is adapted to the availability of the less desirable merchandise. Plop your Hg in, see it happen.

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a half a pints a half a pound a half a world a half a round
Sidearm n. Flask neck tube.

Title: to get h2o% down a bit
Post by: Archaeoptrix on May 14, 2002, 11:25:00 PM

Thanks for the advice halfapint...I was intending to dillute the 7% down to make it fit rxn. guidelines but I was also concerned about getting the h2o % down a bit as well...any comments?

thanks...a

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Load"*",8,1