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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Hydrolysis

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Administrative data

Endpoint:
hydrolysis
Adequacy of study:
disregarded due to major methodological deficiencies

Data source

Referenceopen allclose all

Title:
No information
Author:
Gould E (1959). Mechanism and Structure in Organic|Chemistry. Holt, Reinhart and Winston, New York, NY, USA.
Title:
No information
Author:
Harris J (1982). Rate of Hydrolysis. In: Handbook of|Chemical Property Estimation Methods. Chapter 7. Edited by|WJ Lyman, WF Reehl and DH Rosenblatt. McGraw-Hill Book|Company, New York, NY, USA.

Materials and methods

GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
IUCLID4 Test substance: other TS: Isoprene

Results and discussion

Dissipation DT50 of parent compoundopen allclose all

Any other information on results incl. tables

Hydrolysis of an organic molecule can occur when a molecule (R-X) reacts with water (H2O) to form a new carbon-oxygen bond after the carbon-X bond is cleaved. Mechanistically, this reaction is referred to as a nucleophilic substitution reaction, where X is the leaving group being replaced by the incoming nucleophilic oxygen from the water molecule. The leaving group, X, must be a molecule other than carbon because for hydrolysis to occur, the R-X bond cannot be a carbon-carbon bond. This reaction differs from other reactions with water such as hydration of carbonyls that can lead to the formation of an alcohol beginning with the transfer of a proton from the water to an alkene. However, water by itself is too weak an acid to transfer a proton in the absence of a strong acid, which could effect such an acid catalysed electrophilic addition.

Thus, hydrocarbons such as alkenes are not subject to hydrolysis under conditions typically found within the environment and therefore, this fate process will not contribute to the degradative loss of 2-methyl-2-butene from the environment.

Applicant's summary and conclusion