Superficial velocity

Template:Chembox Niobium(IV) fluoride is a chemical compound with the formula NbF₄; it is a nonvolatile black solid. It absorbs vapor strongly. It turns into NbO₂F in moist air. NbF₄ reacts with water to form a brown solution and a brown precipitate whose components are unknown. It is stable between 275°C and 325°C when heated in a vacuum. However, it disproportionates at 350°C rapidly to form niobium(V) fluoride and niobium(III) fluoride:

$\mathrm{2}\mathrm{N}\mathrm{b}{\mathrm{F}}_{\mathrm{4}}\mathrm{\to }\mathrm{N}\mathrm{b}{\mathrm{F}}_{\mathrm{5}}+\mathrm{N}\mathrm{b}{\mathrm{F}}_{\mathrm{3}}$(at 350°C)

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.