Advices For Studying Organic Chemistry

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Aldrin Chlordan

5) Herbicides:

i) Inorganic herbicides are not very selective (kills weeds and crops).

ii) 2,4-D: Kills broad leaf weeds but allow narrow leaf plants to grow unharmed

and in greater yield (0.25 ~ 2.0 lb/acre).

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2,4-D 2,4,5-T
2,4-dichlorophenoxyacetic acid 2,4,5-trichlorophenoxyacetic acid

iii) 2,4,5-T: It is superior to 2,4-D for combating brush and weeds in forest.

iv) Agent Orange is a 50:50 mixture of esters of 2,4-D and 2,4,5-T.

v) Dioxin is carcinogenic (carcinogen –– substance that causes cancer),

teratogenic (teratogen –– substance that causes abnormal growth), and

mutagenic (mutagen –– substance that induces hereditary mutations).

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2,3,6,7-tetrachlorodibenzodioxin (TCDD) dioxane (1,4-dioxane)