[pure-silver] Re: Mixing
- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 16 Sep 2005 14:58:58 -0400
This question seems to come up all the time. Why do the instructions
call for such a concentrated carbonate solution? This always causes
problems. Even if it were to all dissolve, if the room temperature
should drop then some will crystalize out. Why not make the solution
half strength and then instead of mixing it 1:1:100 mix it 1:2:99. The
resulting solution is the same.
Be aware that potassium salts are often more active than their sodium
equivalents
The solubility of potassium carbonate anhydrous is 52.8% at 20 C.
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of
Camclicker@xxxxxxx
Sent: Friday, September 16, 2005 2:14 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Mixing
I am going to mix up 100 mL of Pyrocat HD and solution B calls
for 75g Potassium Carbonate to be mixed with 70 mL distilled water and
topped off to 100 mL..
The last time I tried mixing this dense a solution (84g Sodium
Carbonate to 100mL water) I ended up with a glob of unusable, moist
Sodium Carb. Will the Potassium behave the same way as the Sodium, if
so is there a trick to mixing dense solutions?
Bruce
Brooklyn, NY
camclicker@xxxxxxx
www.camclicker.com
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