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    Question ID:   19644         Current Version: 1
Question: Does Endosulfan retain the chemical properties of a typical Organchlorine? and how?
Category: Science > Agriculture and Farming
Keywords: endosulfan, effects, organochlorine, chemical properties
Type: how
Rating:(0 ratings)    Views: 27    Discussions: 0   In Watch Lists: 1  

 
    Answer:

In 1988, Endosulfan was reclassified by the WHO as ‘sulfurous ester of a chlorinated cyclic diol.' An important feature of this molecule is its sulphur ring that makes it degradable as well as bio-degradable by bacteria. This property also makes Endosulfan safe for extensive use. It is a mixture of two stereoisomers-alpha-endosulfan and beta-endosulfan. Solubility of alpha-endosulfan in water is only 0.32 mg/L at 22°C, and the same for beta-endosulfan is 0.33 mg/L at the same temperature. Active Endosulfan is formulated into a 35 per cent emulsifying concentrate and diluted before eventual spraying on crops. 

Endosulfan does not persist in the environment, and its degeneration is faster in tropical and sub-tropical climates. Endosulfan dissipates in soil to an extent of 92-97 per cent in the first four weeks after application. It degenerates from consumption by micro-organisms in soil, it chemically breaks down under the impact of sunlight (photolysis) and also degrades on reacting with water (hydrolysis).

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