Re: Potassium Oxalate

I used the anhydrous variety of potassium carbonate.

Thanks for the information about concentration. I
will add some water to the solution and see if
the stuff at at bottom dissolves.

Sandy

>Sandy,
>What form of potassium carbonate did you use? If it is anhydrous, then you
>are about right, you can still add another few grams of potassium
>carbonate, say 10 grams. If you used hydrated potassium carbonate, then
>your proportions are off. By my estimation your solution is about 1.0M. I
>don't find any benefits using solutions more concentrated then 0.9M (im my
>practice, pritning Pd), so you can add some water to it (50-100cc).
>You should not have any undissolved stuff.
>Marek Matusz
>
>> I mixed up a solution of potassium oxalate
>> following directions provided by Nzé Christian. I
>> added 130 gs of oxalic acid to 500 ml of water,
>> mixed until dissolved, and then added 100 gs of
>> potassium carbonate, and finished by adding
>> another 15 gs of potassium carbonate, and finally
>> I topped off the solution to one liter. Distilled
>> water was used.
>>
>> The solution works fine for printing but there is
>> still some junk at the bottom of the container
>> that has not dissolved. What did I do wrong? Do I
>> need to add more water, increase the temperature
>> of the mix, or other?
>>
>> Sandy King
>>
>>
>>
>>
Received on Wed Sep 15 12:22:36 2004