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Environmental fate & pathways

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Reaction mass of 2,6-di-tert-butyl-p-cresol, 4,6-di-tert-butyl-o-cresol and 2,6-di-tert-butylphenol is a non volatile, poor soluble in water, solid substance. The estimated QSARs data on environmental degradation of Reaction mass of 2,6-di-tert-butyl-p-cresol, 4,6-di-tert-butyl-o-cresol and 2,6-di-tert-butylphenol are summarized in table below. Overall, the QSAR estimated data suggest that this substance will not degrade fast in the environment.

 

Table. Degradation rates ofReaction mass of 2,6-di-tert-butyl-p-cresol, 4,6-di-tert-butyl-o-cresol and 2,6-di-tert-butylphenol

 

Degradation rate in water:

Abiotic transformation:

Hydrolysis is not a relevant degradation route for the substance.

 

Biotic transformation:

DT50=37.5 days (900 hours)

Degradation rate in sediment:

DT50=337.5 days (8100 hours)

Degradation rate in soil:

DT50=75 days (1800 hours)

Degradation rate in air:

DT50=0.585 days

 

 

Based on the data summarized here, Reaction mass of 2,6-di-tert-butyl-p-cresol, 4,6-di-tert-butyl-o-cresol and 2,6-di-tert-butylphenol is not considered to degrade rapidly via abiotic or biotic degradation paths