Vanadium Fluoride (VF4)-Powder

Characteristic

Vanadium(IV) fluoride (VF₄) is an inorganic compound of vanadium and fluorine. It is paramagnetic yellow-brown solid that is very hygroscopic. Unlike the corresponding vanadium tetrachloride, the tetrafluoride is not volatile because it adopts a polymeric structure. It decomposes before melting.

Chemical formula：VF₄

Molar mass：126.9351 g·mol⁻¹

Appearance：Lime green powder, hygroscopic

Odor：Odorless

Density：3.15 g/cm3 (20 °C)

                2.975 g/cm3 (23 °C)

Melting point：325 °C (617 °F; 598 K) at 760 mmHg decomposes

Boiling point：Sublimes

Solubility in water：Very soluble

Solubility：Soluble in acetone, acetic acid

                   Very slightly soluble in SO2Cl2, alcohols, CHCl3

Crystal structure：Monoclinic, mP10

Application

Used as a fluoridation agent.