Originally Posted by Psychlone
I stumbled across a formula which reads:
3Ca(Po3)2 + 10C
The paper was written in mid 19xx, in the paper it is described how that is a way to "extract" Phosphorus.
This is slightly confusing as there must be a misprint (the "o" should be capital O for Oxygen, if we assume that, does that make the first reactant to be Calcium Phosphite?
Ca(PO3)2 is called metacalcium phosphate. (It took a while to find it on the internet.) Did you possibly mean Ca3(PO4)2? Calcium phosphate seems to have the formula Ca3(PO4)2 but there is a "mono" and "di" calcium phosphate as well. This one is properly called tricalcium phosphate. To further confuse matters calcium phosphite is Ca3(PO3)2.
I couldn't find anything on extracting phosphorus from metacalcium phosphate. Given the similarity between the two compound nomenclatures is it possible that you are actually talking about calcium phosphate? I couldn't find the specific reaction but there are many articles about extracting phosphorus from calcium phosphate.