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Environmental fate & pathways

Hydrolysis

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Endpoint:
hydrolysis
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Reason / purpose:
data waiving: supporting information
Endpoint:
hydrolysis
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Remarks:
Internationally accepted calculation method, EPI-Suite EPA (USA)
Principles of method if other than guideline:
Calculation by EPI-Suite HYDROWIN v2.00.
GLP compliance:
no

Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C):

Total Kb for pH > 8 at 25 ºC : 1.157 x 1013 L/mol·sec

Kb Half-Life at pH 8: 1.898 x 1011 years

Kb Half-Life at pH 7: 1.898 x 1011 years

Conclusions:
Hydrolysis is not expected (EPI-Suite HYDROWIN v2.00).
Executive summary:

Based on the estimated results using EPI-Suite, HYDROWIN v2.00, hydrolysis of 1,1 -difluoroethane is not expected.

Description of key information

Data waiving: The substance is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions.

Key value for chemical safety assessment

Additional information

Data waiving: The substance is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions.

Supporting study: Based on the estimated data using EPI-Suite (HYDROWIN v2.00), hydrolysis is not expected.