More Details

• Naphthalene balls are used as moth repellents. Naphthalene balls are solids that turn into toxic gas. The toxic gas kills insects and may repel animals.
• Mothballs are commonly made of naphthalene or para- dichlorobenzene, both of which are toxic to humans.
• These chemicals are solids at room temperature and are made into round balls, flakes or cakes that slowly change to a gas and become fumes in the air.