Exposure to carbon tetrachloride can cause dizziness, light-headedness, nausea, and vomiting, leading to permanent damage to nerve cells. In severe cases, it can result in stupor, coma, unconsciousness, or death. The chemical may also make the heart beat irregularly or ...

Carbon tetrachloride is used in the production of refrigerants, propellants, chlorofluorocarbons, pharmaceuticals, and general solvents. Until the mid-1960s, it was widely used as a cleaning fluid, both as a degreasing agent in industry and a spot remover in homes.

Chloroform is stored in closed, dark-colored bottles to prevent exposure to light, as it can oxidize to form the poisonous gas carbonyl chloride (phosgene). Its use as an antiseptic has been phased out due to its objectionable smell, and it ...

Chloroform was once used as a general anesthetic in surgery, but it has been replaced by safer alternatives like ether due to its potential to depress the central nervous system and cause health issues upon inhalation.

Chloroform is utilized as a solvent for fats, alkaloids, iodine, and other substances. Its major contemporary application is in the production of the freon refrigerant R-22.

Direct skin contact with methylene chloride causes intense burning and mild redness. Eye contact can burn the cornea. These effects highlight the importance of handling this compound with caution due to its potential harm to human health.

Exposure to methylene chloride in air can lead to impaired hearing and vision at lower levels, while higher levels can cause dizziness, nausea, and tingling in fingers and toes. Methylene chloride harms the human central nervous system.

Carbon compounds with more than one halogen atom are termed polyhalogen compounds. Dichloromethane finds applications as a solvent, paint remover, propellant in aerosols, and in drug manufacturing as well as metal cleaning and finishing.

The halogen atom’s –I effect and deactivating influence, along with resonance, make the benzene ring in haloarenes somewhat deactivated compared to benzene. As a result, electrophilic substitution reactions in haloarenes occur more slowly and require more drastic conditions than those ...

The halogen atom in haloarenes, being o, p-directing, directs further substitution to the ortho- and para-positions with respect to itself due to resonance, resulting in increased electron density at these positions.