13777-22-5

Basic information

• Product Name: HAFNIUM BROMIDE
• Synonyms: hafniumbromide(hfbr4);HAFNIUM (IV) BROMIDE;HAFNIUM BROMIDE;HAFNIUM TETRABROMIDE;Hafniumbromideanhydrousmeshtanpowder;HAFNIUM BROMIDE, ANHYDROUS, POWDER, 99.9 9%;HAFNIUM (IV) BROMIDE ANHYDROUS 99.7%;Hafnium(IV)bromide,anhydrous,98%(99.7%-Hf)
• CAS NO: 13777-22-5
• Molecular Formula: Br₄Hf
• Molecular Weight: 498.11
• EINECS: 237-416-9
• Product Categories: metal halide
• Mol File: 13777-22-5.mol
• Article Data: 2

Chemical Properties

• Melting Point: 424 °C(lit.)
• Boiling Point: 323°C
• Flash Point: °C
• Appearance: tan/Powder
• Density: 4.9 g/mL at 25 °C(lit.)
• Sensitive: moisture sensitive
• CAS DataBase Reference: HAFNIUM BROMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: HAFNIUM BROMIDE(13777-22-5)
• EPA Substance Registry System: HAFNIUM BROMIDE(13777-22-5)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-27-36/37/39-45
• RIDADR: UN 1759 8/PG 2
• WGK Germany: 3
• Hazardous Substances Data: 13777-22-5(Hazardous Substances Data)

Usage

Chemical Properties

-20 mesh with 99.7% purity; hygroscopic; white cub, a=0.095 nm; or tan powder(s) [KIR80] [STR93] [CER91]

InChI:InChI=1/4BrH.Hf/h4*1H;/q;;;;+4/p-4

Upstream product

• 13499-05-3 hafnium tetrachloride 
• 10035-10-6 hydrogen bromide 
• 13782-96-2 hafnium tribromide 
• 7699-43-6 zirconyl chloride 
• 7726-95-6 bromine 
• 7440-44-0 pyrographite 

Downstream Products

• 12027-05-3 hafnium hydroxide 
• 10035-10-6 hydrogen bromide 
• 805232-29-5 [HfBr₄(o-C₆H₄(PPh₂)2)] 
• 135583-86-7 Hf₂Br₄(C₆H₅P(CH₃)2)2(P(CH₃)2C₆H₅)2 

Relevant articles and documents

Alkali Halide Cubic Cluster Anions ([Cs8X27]19-, X = Cl, Br) Isolated from Water

Herein we report the syntheses and the X-ray structure of [Cs8X27]19- (X = Cl, Br) clusters, the first binary cluster anions isolated in bulk crystal structures. They were obtained by electrostatic capture and face-directed recognition of the prenucleation [CsmCln](n-m)- clusters from water solutions, using [M4(OH)8(OH2)16]8+ (M = ZrIV or HfIV) as the counter cations. These compounds have been thoroughly characterized with a variety of techniques including vibrational spectroscopy and superionic conductivity analysis. This work not only provides structural models for a better understanding of the nucleation of binary materials but also shows that magic number binary clusters adopting a cubic lattice structure do form, in agreement with the time-honored theoretical and spectroscopic predictions.