ORGANOCHLORINES (OCs) - structures, synthesis, properties DDD, DDE, DDT synthesis, Dicofol, Lindane

Commonly used in the past but many have been removed from the market due to their health and environmental effect and their persistence. (ex: DDT, Lindane)

DDT

Dichloro-Diphenyl-Trichloro ethane

1st modern pesticide and one of the best known synthetic pesticides. It was developed early in the world war II & initially used to combat mosquitoes spreading malaria, & other insect born human diseases among both military & civilian population & as an agricultural insecticide.
Paul Mϋller was awarded the Nobel prize in Medicine in 1948 for discovery of DDT.
Systematic name 4, 4’ –(2,2,2-trichloroethane-1,1-diyl) bis(chlorobenzene)


Chemical formula C14H9Cl5
Molecular mass 354.49g/mol
Density 1.6g/cm3
Melting point 106.5oC
Boiling point 260oC


DDT synthesis

OTHER RELATED COMPOUNDS

DDE C14H8Cl4 1,1-dichloro-2,2-bis(chlorophenyl) ethane

 

DDD 1,1-Dichloro-2,2-bis(p-chlorophenyl) ethane

Dicofol
C14H9Cl5O
2,2,2-trichloro-1,-bis(4-chlorophenyle)ethanol

Lindane
C6H6Cl6
Molecular Mass 290.83g/mol
Used as a wood preservative,
as a veterinary medicine in
Agriculture.
Lindane produces histopathalogical changes in the liver.