Abstract
Conversion of microcrystalline calcium carbonate powder to fluorite by reacting it with potassium fluoride solution is studied. The reaction occurs at room temperature and yields a white flowing powder. Rhombohedral CaCO 3 microcrystals are replaced by an ensemble of CaF 2 nanoparticles sized ca. 20 nm, which in part fill in the volume of the precursor microcrystals. The product calcium fluoride contains about 2 mol % KF. KCaF 3 is not produced by the reaction, and KCaF 3 is a high-temperature compound stable above 500 о С.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
