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niobium trichloride

CAS No.
13569-59-0
Chemical Name:
niobium trichloride
Synonyms
Einecs 236-985-0;niobium trichloride;Niobium(III) chloride;Niobium chloride(NbCl3);Niobium(III) trichloride
CBNumber:
CB8923716
Molecular Formula:
Cl3Nb
Molecular Weight:
199.26538
MDL Number:
MOL File:
13569-59-0.mol
Last updated:2023-10-17 17:11:58

niobium trichloride Properties

form black solid
color black
EPA Substance Registry System Niobium chloride (NbCl3) (13569-59-0)

niobium trichloride Chemical Properties,Uses,Production

Chemical Properties

Niobium (III) chloride is a green-black; crystallizes in crusts, rods, or plates. Under sufficiently high NbCl5 pressure and in the absence of air, NbCl3 is stable at 800℃. It disproportionates to NbCl5 and Nb in a temperature gradient. Only slightly air-sensitive at room temperature. Insoluble in H2O, dilute acids and dilute alkali. Attacked by oxidizing agents at varying rates depending on the concentration and the temperature. Insoluble in organic solvents, even in ethanol.

Preparation

High-surface Nb metal (e.g., foil) and a slight excess of NbCl5 are placed in an evacuated reactor tube which is then sealed. The sealed horizontal reactor is heated for three days in a temperature gradient such that the end of the tube containing Nb is at 390℃, while the remainder of the tube is at 355℃. The contents are thus converted to NbCl3, which, as a result of the reversible equilibrium NbCl3 (solid) + NbCl5 (gas) = 2NbCl4 (gas), is transported into the 355℃ zone where it deposits as crystals. It can then be resublimed by reversing the temperature gradient. At the end of the procedure, only the part of the tube containing the NbCl3 is heated for a few minutes to 390°C while keeping the other end at 20℃, thus driving the NbCl5 to the cold end. The tube is allowed to cool and is then opened under anhydrous conditions.

niobium trichloride Preparation Products And Raw materials

Raw materials

Preparation Products

niobium trichloride Suppliers

Global( 2)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Didu New Materials Co. Ltd
+86-89586680 +86-13289823923 1026@dideu.com China 9003 58
Supplier Advantage
Shaanxi Didu New Materials Co. Ltd
58
niobium trichloride Niobium chloride(NbCl3) Niobium(III) chloride Niobium(III) trichloride Einecs 236-985-0 13569-59-0