Aluminum bromide, likewise known through its common name aluminum tribromide and also IUPAC name tribromoalumane, is a hygroscopic compound stood for by the chemistry formula AlBr3 <1, 4>. That is dimeric kind (Al2Br6) exists greatly in the solid step <2>.
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Aluminum Bromide Identification | |
| CAS Number | 7727-15-3 <1> |
| PubChem CID | 24409 <1> |
| ChemSpider ID | 22818 <3> |
| UN Number | 1725 <1> |
| NSC Number | 87608 <1> |
| EC Number | 231-779-7 <1, 4> |
| RTECS Number | BD0350000 <4> |
| InChI Key | PQLAYKMGZDUDLQ-UHFFFAOYSA-K <1> |
Aluminum Bromide Formula
How is Aluminum Bromide Prepared
It is synthesized by the slow addition of piece of aluminum foil to liquid bromine, and also this direct bromination is stood for by the adhering to reaction <5>:
2Al + 3Br2 → 2AlBr3
The equation is extremely exothermic and also causes the aluminum foil to melt, creating heat and also light <5>.
Aluminum Bromide Synthesis
Reaction through Chlorine
When aluminum bromide reacts with chlorine, it undergoes solitary replacement to yield aluminum chloride and also bromine, i m sorry is shown by the following well balanced equation:
2AlBr3+ 3Cl2 → 2AlCl3 + 3Br2
Properties and Characteristics of Aluminum Bromide
General Properties | |
| Molar Mass/Molecular Weight | 266.69 g/mol <1, 4> |
Physical Properties | |
| Color and also Appearance | White come pale yellowish-red, lumpy powder (anhydrous form) <1, 4> |
| Odor | Pungent <1> |
| Melting Point | 97.5 °C, 207.5 °F (anhydrous) <1> |
| Boiling Point | 255 °C, 491 °F (anhydrous) <1> |
| Density | 3.2 g cm-3 <1, 4> |
| State of issue at room temperature | Solid <1, 4> |
| Solubility | Soluble in benzene, toluene, nitrobenzene, ether, methyl alcohol, and also acetone <1> |
| Solubility in Water | Highly soluble, partly hydrolyzes displayed by a fuming solution and appearance of white precipitate |
| Heat capacity (C) | 100.6 J/(mol.K) |
| Lattice consistent (a, b, and also c) | 0.7512 nm, 0.7091 nm, and also 1.0289 nm |
Atomic Properties | |
| Crystal Structure | Monoclinic lattice <6> |
Aluminum (III) Bromide crystal Structure
What is It offered for
Although the does not have actually any far-ranging commercial applications, that is anhydrous type works together a catalyst for boosting the rate of Friedel-Crafts alkylation reaction <7, 8>.
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Is Aluminum Bromide Toxic
Exposure with inhalation and also swallowing can cause acute toxicity <8>. Call with skin and also eyes can an outcome in irritation, corrosion, and also damage <8>.