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Aluminium Iodide Formula, Structure and Properties

Aluminium iodide formula is AlI₃, is a chemical compound consisting of aluminium (Al) and iodine (I) atoms. Aluminium iodide formula is also known as aluminium triiodide, indicating that it contains one aluminium atom bonded to three iodine atoms.
authorImageSawat Sayyed17 Oct, 2023
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Aluminium Iodide Formula

Aluminium Iodide formula is AlI₃ is a compound composed of aluminium (Al) and iodine (I) atoms. It is an ionic compound formed by transferring electrons between aluminium and iodine, forming charged ions.

There are two elements in the Aluminum Iodide Formula: iodine and aluminium. It is an ionic molecule that catalyzes organic processes. It is also possible to create hexahydrates by mixing hydrogen iodine or hydriodic acid with metallic aluminium or aluminium hydroxide. It is a Lewis acid that absorbs moisture from the air, breaking down aryl ethers and deoxygenating epoxides.

Aluminium Iodide Formula

Aluminium iodide is also known as aluminium triiodide. Its chemical formula, AlI₃, indicates that it consists of one aluminium atom and three iodine atoms. The subscript "3" in the formula signifies that there are three iodine atoms for every one aluminium atom in the compound.

Aluminium-iodide-formula

Also Read: Methane formula

Aluminum Iodide Formula and Structure

Aluminium iodide formula is AlI3. It is dimeric (meaning it is composed of two identical simpler molecules), Al2I6, similar to AlBr3. Its gas phase characterizes the monomeric and dimeric forms. In addition, the monomer AlI3 is a triangular planar, and its bridged dimer Al2I6 is a triangular planar like Al2CL6 and Al2Br6. A dimer with equilibrium geometry may also be referred to as floppy.

As with aluminium bromide, aluminium iodide has the chemical formula AlI3. It is dimeric (meaning it is composed of two identical simpler molecules), Al2I6, the same as AlBr3. The gas phase characterizes the monomeric and dimeric forms of its structure. The monomer, AlI3, is a trigonal planar, and the bridged dimer, Al2I6, has an equilibrium geometry similar to Al2CL6 and Al2Br6. The dimer can also be referred to as floppy.

Aluminium Iodide Structure

Also Read: Lead Acetate Formula

Aluminium Iodide Formula Compound

The aluminium iodide formula is a chemical compound that forms when aluminium and iodine react together. It is an ionic compound in which aluminium, a metal, donates three electrons to each iodine atom, a non-metal. This electron transfer leads to the formation of Al³⁺ cations and I⁻ anions, resulting in the stable ionic compound AlI₃.

Aluminium Iodide Equation

The formation of the aluminium iodide formula can be represented through a chemical equation, typically depicted as:

2Al + 3I₂ → 2AlI₃

In this equation, two aluminium atoms react with three molecules of iodine (I₂) to yield two molecules of aluminium iodide (AlI₃). The balanced equation demonstrates the reaction's stoichiometry, showing that two moles of aluminium react with three moles of iodine to produce two moles of aluminium iodide.

Aluminium Iodide Chemical Formula

The chemical formula for aluminium iodide, AlI₃, summarizes the composition and ratio of elements within the compound. It is important to note that aluminium iodide is a solid ionic compound with a distinct crystal lattice structure, and it is used in various chemical reactions and synthesis processes in chemistry and industry.

Also Read: Magnesium Iodide formula

Aluminum Iodide Physical Properties

As a colourless powder, it has a density of 3.98 g/cm3, a melting point of 189.4oC, a boiling point of 360oC, and a molar mass of 407.69 g/mol. It can dissolve in water, ethanol, diethyl ether, carbon disulfide, pyridine, and sulfur dioxide.

Aluminum Iodide Chemical Properties

It is an ionic compound applied as a spray to treat animal stalls and added as a catalyst (a substance added to speed up a reaction) in some organic reactions. Since it releases significant heat and is exothermic, scientists and businesses conduct it under a special heat-resistant container and fume hood. In water, iodine reacts with the aluminium iodide formula, generating a purple vapour.

Aluminum Iodide Uses

It is commonly used as an animal stall cleaner, where its vapour kills bacteria that can cause respiratory diseases. It is used in organic chemistry sometimes as a catalyst that accelerates reactions between elements and compounds. In addition, it breaks carbon-oxygen bonds and nitrogen-oxygen bonds, removing oxygen from epoxides.

Related Links
Potassium Acetate formula Nickel Chloride formula
Porpionic Acid formula Hyponitrous Acid Formula

Aluminium Iodide Formula FAQs

Is aluminum iodide a compound?

Yes, aluminum iodide (AlI₃) is a compound. It is a chemical substance formed through a chemical reaction between aluminum and iodine atoms, resulting in the creation of a distinct compound with a specific chemical formula.

What is AlI₃ called?

AlI₃ is called "aluminum iodide" or "aluminium iodide." It is also known as "aluminium triiodide," signifying that it consists of one aluminum atom bonded to three iodine atoms.

What is the compound formed by aluminium and iodine?

The compound formed by the combination of aluminium and iodine is aluminum iodide (AlI₃). It is an ionic compound resulting from the reaction between aluminum and iodine atoms, characterized by the transfer of electrons between the elements and the formation of charged ions.

How do you write aluminum iodide?

Aluminum iodide is written as "AlI₃," which represents the chemical formula of this compound. The "Al" stands for aluminum, and "I" stands for iodine. The subscript "3" indicates that there are three iodine atoms for every one aluminum atom in the compound.
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