Table of Contents
Introduction To Naphthalene
Naphthalene is a white crystalline solid with a characteristic odor. It is soluble in organic solvents but insoluble in water. Naphthalene is produced commercially from coal tar and is used in the manufacture of plastics, solvents, and other chemicals.
Structure of Naphthalene
The molecular formula of naphthalene is C 10 H 8 and it has a molecular weight of 128.16 g/mol. Naphthalene is a white solid that is insoluble in water but soluble in organic solvents. It has a characteristic odor and is used in the production of plastics, dyes, and other chemicals.
Properties of Naphthalene:
Naphthalene is a hydrocarbon and is a white solid at room temperature. It is soluble in organic solvents, but is insoluble in water. It has a boiling point of 218.8 degrees Celsius and a melting point of 80.2 degrees Celsius. Naphthalene is combustible and emits a characteristic odor. It is used in the production of plastics, dyes, and other chemicals.Synthesis of Naphthalene
Naphthalene can be synthesized in a number of ways, but the most common method is the Friedel-Crafts alkylation of benzene with acetylene.
In this reaction, a catalyst such as aluminum chloride is used to promote the reaction between the two molecules. The products of the reaction are naphthalene and hydrogen gas.
Naphthalene in Water
The concentration of naphthalene in water is typically less than 1 μg/L.
Naphthalene in Other Solvents
Benzene
Toluene
Ethanol
Acetone
Different Forms of Naphthalene
There are three main forms of naphthalene: solid, liquid, and gas.
Solid naphthalene is a white, crystalline material that is often used as a moth repellent.
Liquid naphthalene is a clear, colorless liquid that is used as a solvent and as a chemical intermediate.
Gas naphthalene is a colorless, flammable gas that is used as a propellant and in the manufacture of plastics and other chemicals.
Use of Naphthalene
Naphthalene is used as a moth repellent.
Interesting Facts about Naphthalene
1. Naphthalene is a white solid that is soluble in organic solvents.
2. It is used in the production of mothballs and other insecticides.
3. It is also used in the production of plastics and pharmaceuticals.
4. Exposure to naphthalene can cause irritation of the eyes, nose, and throat.
5. It can also cause skin irritation and can be toxic if ingested.
