Aluminium Sulfide Formula

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Aluminium sulfide or aluminium sulphide is a grey chemical compound with a chemical formula Al2S3. It readily hydrolyses in the air to form hydrogen sulfide. Aluminium sulfide is a greyish solid that posses a strong sulfide smell. It has six crystalline forms: α, β, γ and δ. It can be prepared through a thermite-like reaction between sulfur and aluminium powders. In this article, learn the aluminium sulfide formula and its chemical structure along with its properties and uses.

Aluminium Sulfide Properties

Properties of Aluminium Sulfide
NameAluminium Sulfide
AppearanceGray solid with rotten egg smell
Chemical FormulaAl2S3
Melting Point1,100 °C
Boiling Point1, 500 °C
Density2.02 g/cm3
Molar Mass150.158 g/mol
Solubility in WaterHydrolyses to release H2S

Aluminium Sulfide Chemical Structure

Aluminium Sulfide Uses

  • Used in the preparation of hydrogen sulfide
  • Used to produce chemicals used in the tanning and papermaking industry
  • Used to produce organic compounds such as ethanethiol

Preparation of Aluminium Sulfide

Aluminum is a metal, and sulfur is a nonmetal, so when they combine, an ionic compound is formed by transferring electrons from the metal to non-metal

2Al +3 S ⇢ Al2S3

Physical Properties Of Aluminium Sulfide

  • Aluminum Sulfide molar mass is 150.158 g/mol
  • Its density is 2.02 g/cm3
  • Its boiling point is 1500°C
  • Its melting point is 1100°C

Chemical Properties  Of Aluminium Sulfide

  • The chemical formula of Aluminium Sulfide is Al2S3
  • It is slightly soluble in water and primarily soluble in acid solutions.
  • It produces sodium Sulfide after the reaction in the presence of sodium or potassium bases.
  • It reacts to water in the atmosphere to form aluminum hydroxide and hydrogen sulfide.

Al2S3 + 6H2O ⇢ 2Al (OH)3 + 3 H2S

Uses Of Aluminium Sulfide

  • Aluminum Sulfide is used in the preparation of hydrogen sulfide.
  • It is majorly used in chemical industry.
  • It is used in the manufacturing of cathodes.
  • It is used in the production of Nano-network structures.
  • It is a chemical molecule that has a significant influence.

Sample Questions

Question 1: Why Aluminium Sulfide is ionic?


Aluminum is a metal, and sulfur is a nonmetal so when they combine, an ionic compound is formed by transferring electrons from the metal to the non-metal. Therefore, the bond is ionic.

Question 2: What are the uses of Aluminium?


Aluminum is used in a variety of products, including packing, cans, window frames, computers, cellphones, foils, and airplane parts. Aluminum is also a great conductor of electricity, and it is much cheaper than its counterpart, Copper. So it is used in electric wires and other such power transmission lines.

Question 3: Is Aluminium react with Nitrogen?


Aluminum reacts with nitrogen to produce aluminum nitride. Aluminum has a higher affinity for oxygen than nitrogen, and so in the presence of oxygen and nitrogen will form Al2Oin reference to aluminum nitride.

Question 4: Aluminium Sulfide is acid or base?


Aluminum Sulfide is acidic. When Aluminium Sulfate reacts with water, it produces Aluminium hydroxide and a diluted sulfuric acid solution which changes the soil’s acidity.

Question 5: What are the food sources of aluminum?


The most commonly used foods that contain essential amounts of aluminum-containing food additives are backing powders, cake mixes, processed cheeses, and pickled vegetables.

Question 6: What Aluminium does do to your body?


Little exposure to aluminum is normally not harmful, but exposure to very high levels can affect the health. It attacks your central nervous system and is linked to degenerative brain diseases. Breathing aluminum dust in large amounts can have lung diseases.

Question 7: What is the special about Sulfur?


Sulfur has many uses. It is used to make car batteries, refine oil, and fertilizer, and extract minerals. Pure sulfur is a tasteless, odorless, brittle solid that is pale yellow in color, and it is a poor conductor of electricity and insoluble in water. Sulfur reacts with all metals except gold and platinum, forming sulfides.

What is the formula for aluminium sulfide?

Aluminium sulfide is a chemical compound with the formula Al2S3.

Is the formula al3s2 for aluminum sulfide correct why or why not?

Answer and Explanation:

The formula for aluminum sulfide is Al2 S3. Aluminum has three valence electrons and it gives up all three to form the aluminum ion Al+3. Sulfur has six valence electrons and gains two electrons to become S-2.

What is in aluminum sulfide?

Aluminum Sulfide is a chemical compound with the formula Al2S3. It is also called dialuminium trisulfide. It is an ionic compound of aluminum and sulfur.

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