I recently came across a one pound container of calcium phosphate tribasic, N.F. (powder)(precipatated) while digging around in my workshop. Is this
of any use to anyone? From Mallinckrodt Chemical Works. Been here 15 years or so. Thanks in advance.plante1999 - 16-6-2012 at 02:35
make phosphorus? blogfast25 - 16-6-2012 at 04:27
Check your U2U, EOAC.AJKOER - 16-6-2012 at 09:14
OK, perhaps a little more expensive path (but no shipping cost or wait) could not one make Ca3(PO4)2 by mixing CaCl2 with Na3PO4 in hot water (as
Tri-Sodium Phosphate is not especially soluble in cold water). Reaction:
3 CaCl2 + 2 Na3PO4 --> Ca3(PO4)2 (s) + 6 NaCl
Filter, rinse and dry.
Both CaCl2 (in Damp Rid) and Na3PO4 (marketed as TSP for Tri-Sodium Phosphate) are for sale at Home Depot, albeit a bit pricey.
calcium phosphate tribasic
edgeofacliff - 16-6-2012 at 12:02
How is it used to make phosphorous? Any other uses?blogfast25 - 17-6-2012 at 08:06
How is it used to make phosphorous? Any other uses?
Industrially by heating with coke and silica. Hobbyists tend to use sodium metaphosphate, silica and aluminium powder. See the relevant sticky thread
for reactions and details.edgeofacliff - 17-6-2012 at 15:51
Although my thirst for knowledge is endless, once I hit the 50 year old mark my ambition has been in decline. I really have no need for the calcium
phosphate and would be happy to pass it along to whomever might want/need it. plante1999 - 17-6-2012 at 17:28
