From: Sandy King (sanking@CLEMSON.EDU)
Date: 04/23/02-08:37:06 AM Z
Joe,
Potassium carbonate is soluble in water up to about 125-135%, which
means that you should be able to dissolve at least as much as 125g in
100ml of water. I have been working with this formula for about three
years and have never had any problem in mixing the 100% solution. I
add the potassium carbonate slowly to the water because there is
quite a lot of heat produced from the mixture. It should dissolve
completely in 30 minutes or less.
Sandy
>Okay folks, I give, how do you keep 100 grams of the carbonate dissolved in
>100 mls of water? It has been three days and the best that can be said is
>the "B" is a slurry. For the record, the chemicals are analytical grade and
>the water is distilled. I have been using the 10% solution B and watching
>the threads on this subject decided to try the 100% solution.
>
>How about this as an alternative, since the formula is calling for 1:1:100
>(or 2:2:100 depending what one is doing), and the 100% shows B actually
>being 1 gram of pot carbonate per 100 mls of water, why not add the
>appropriate amount of dry carbonate to the working solution. If my logic
>works out right, that would be 10 grams per 1000 mls of working solution.
>Just mix the appropriate amount of carbonate to the water then add the A.
>OTOH, why not mix up a big batch of 1% carbonate and add the part A as
>needed? Does the carbonate keep? in solution? Does this sound feasible?
--
This archive was generated by hypermail 2b30 : 05/01/02-11:43:30 AM Z CST