Absorption of Various Fluorine Compounds From the Gastrointestinal Tract of the Rat

Abstract

The absorption of variously bonded fluorine compounds from the gastrointestinal tract of the rat was determined. NaF, Na₂SiF₆, Na₂PO₃F and SnF₂ were absorbed to the same extent (48%), whereas KPF₆, EtNPF₆ and KBF₄ were absorbed to a significantly greater degree (74%). The results suggest that covalently held fluorine compounds are absorbed at a greater rate than the fluoride ion.