State the uses and harmful effects (side effects) of dichloromethane (methylene dichloride),$CH_2Cl_2$.

(N/A) Uses of dichloromethane:
Dichloromethane is widely used as a solvent,as a paint remover,as a propellant in aerosols,and as a process solvent in the manufacture of drugs.
It is also used as a metal cleaning and finishing solvent.
$(b)$ Harmful effects of dichloromethane:
It harms the human central nervous system.
Exposure to lower levels of dichloromethane in air can lead to slightly impaired hearing and vision.
High levels of methylene chloride in the air cause dizziness,nausea,tingling,and numbness in the fingers and toes.
Direct contact with the skin causes intense burning and mild redness of the skin.
Direct contact with the eyes can burn the cornea.