Hi All,
Thanks Jonny, I appreciate that, I saw your post and your post along with Neil Frank’s, suggested my next steps.
When deucebiggss asked the original question, I realized the obvious error of mixing Epsom Salt and Calcium chloride.
I guess the statement of
‘fact,’ that prefaced the question, jolted something in what passes for my brain. In part, I had never had trouble dissolving Calcium chloride in distilled or de-ionized water. To be fair I did not try to find the statement attributed to Messieurs Barr and Watson. I simply
‘knew’ that it was
incorrect. I recall no such statements offhand.
My ‘standard’ solution is ~60 grams in one liter of distilled water. Not being as smart as Dan, or smart enough to look it up myself, I did not know how much Calcium chloride I would be able to get into solution. I started with 250 milliliters of distilled water and started out 5 grams (a very heavy teaspoon) at a time. I knew 15 grams would go in easily, I continued until it stopped going into solution easily, 50 grams.
It was not so much the addition of Epsom Salt precipitating Calcium sulfate, or Sodium phosphate to the Calcium chloride solution, precipitating Calcium Phosphate. It was adding the Calcium chloride solution to my tanks.
Apparently, I had never taken a close look at Calcium chloride solutions as we add them to the aquarium. What I witnessed was a flurry of calcium precipitates.
Calcium
appeared trickier than I had imagined. Prior to Neil Frank’s post, I had concluded that what I had been doing did not seem like such a great idea.
Then I thought about Neil’s comment about sticking with Calcium sulfate, CaSO4 and Jonny’s good catch of my misidentification of Calcium Phosphate, Ca3(PO4)2.
The thing is CaSO4 is CaCO4 whether it is plaster of Paris or a precipitate of whatever reaction.
As Jonny kindly corrected me regarding the ‘snowy white’ precipitate, Calcium Phosphate, Ca3(PO4)2, is a fertilizer.
So I dried the resulting precipitates, CaSo4 and Ca3(PO4)2. I dumped 5 grams each into various tanks in various locations along with Barr's Booster and some plaster of Paris.
Sure enough, the CaSo4 I precipitated took the same amount of time to dissolve as the Barr’s Booster, as the plaster of Paris. The Calcium Phosphate, Ca3(PO4)2 took considerably longer, but did dissolve, as far as I could tell, completely.
Conclusions:
- Being Anna Torv would be great; being Gerry would not be bad either.
- Calcium is Calcium it really does not matter quite what form.
- I like chloride in the ‘equation.’
- I will continue to use Calcium chloride, CaCl2.
Biollante