Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
hydrolysis
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data are from a peer reviewed source.
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in IUCLID Section 13.
Cross-reference
Reason / purpose for cross-reference:
read-across source
Reference
Endpoint:
hydrolysis
Type of information:
other: Technical Discussion
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data are from a peer reviewed source.
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in IUCLID Section 13.
Reason / purpose for cross-reference:
read-across: supporting information
Principles of method if other than guideline:
Technical discussion
GLP compliance:
not specified
Conclusions:
Hydrolysis is not expected to be a significant mechanism of degradation in the environment because hydrocarbons, C14-20 Aliphatics (≤2% aromatics) lack a hydrotically reactive functional group. Therefore, hydrocarbons are not subject to hydrolysis and this fate process will not contribute to the degradative loss of the substance from the environment.
Executive summary:

Hydrolysis is a reaction in which a water molecule of hydroxide ion substitutes for another atom of group of atoms present in a chemical resulting in a structural change of that chemical. Potentially hydrolysable groups include alkyl halides, amides, carbamates, carboxylic acid esters and lactone epoxides, phosphate esters, and sulfonic acid esters. The lack of a suitable leaving group renders compounds resistant to hydrolysis.

The chemical constituents that comprise hydrocarbons, C14-20 Aliphatics (≤2% aromatics) consist entirely of carbon and hydrogen and do not contain hydrolysable groups. As such, they have a very low potential to hydrolyze. Therefore this degradative process will not contribute to their removal from the environment.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Hydrolysis
Author:
Neely, W.B.
Year:
1985
Bibliographic source:
In: Environmental exposure from chemicals" (Neely, W.B. & Blau, G.E., Eds), Vol. I, Academic Press, Boca Raton, FL, USA: 157-173
Reference Type:
other: Handbook
Title:
Chapter 8. Rate of Aqueous Photolysis.
Author:
Harris
Year:
1982
Bibliographic source:
In: Handbook of Chemical Property Estimation Methods. W. J. Lyman, W. F. Reehl and D. H. Rosenblatt, eds. McGraw-Hill Book Company, New York, USA.
Reference Type:
publication
Title:
No information
Author:
Gould
Year:
1959

Materials and methods

Principles of method if other than guideline:
Technical discussion
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
C14-16 (even numbered) and C16 (branched) saturated and unsaturated aliphatic hydrocarbons
EC Number:
700-762-0
Molecular formula:
All molecules present in the mixture have the general molecular formula CnH2n for olefins or CnH2n+2 for the paraffin’s with n being an even number
IUPAC Name:
C14-16 (even numbered) and C16 (branched) saturated and unsaturated aliphatic hydrocarbons
Test material form:
liquid: viscous

Results and discussion

Applicant's summary and conclusion

Conclusions:
Hydrolysis is not expected to be a significant mechanism of degradation in the environment because hydrocarbons, C14-20 Aliphatics (≤2% aromatics) lack a hydrotically reactive functional group. Therefore, hydrocarbons are not subject to hydrolysis and this fate process will not contribute to the degradative loss of the substance from the environment.
Executive summary:

Hydrolysis is a reaction in which a water molecule of hydroxide ion substitutes for another atom of group of atoms present in a chemical resulting in a structural change of that chemical. Potentially hydrolysable groups include alkyl halides, amides, carbamates, carboxylic acid esters and lactone epoxides, phosphate esters, and sulfonic acid esters. The lack of a suitable leaving group renders compounds resistant to hydrolysis.

The chemical constituents that comprise hydrocarbons, C14-20 Aliphatics (≤2% aromatics) consist entirely of carbon and hydrogen and do not contain hydrolysable groups. As such, they have a very low potential to hydrolyze. Therefore this degradative process will not contribute to their removal from the environment.