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Environmental fate & pathways

Hydrolysis

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The work described was performed in compliance with UK GLP standards (Schedule 1, Good Laboratory Practice Regulations 1997 (SI 1997/654)). These Regulations are in accordance with GLP standards published as OECD Principles on Good Laboratory Practice (revised 1997, ENV/MC/CHEM(98)17); and are in accordance with, and implement, the requirements of Directives 87/18/EEC and 88/320/EEC.
Qualifier:
according to guideline
Guideline:
EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH)
GLP compliance:
yes (incl. QA statement)
Test performance:
Less than 10% hydrolysis after 5 days at 50'C, equivalent to a half- life greater than 1 year at 25 'C.
Transformation products:
no
pH:
4
Temp.:
50 °C
Hydrolysis rate constant:
< 10 d-1
DT50:
> 1 yr
pH:
7
Temp.:
50 °C
Hydrolysis rate constant:
< 10 d-1
DT50:
> 1 yr
pH:
9
Temp.:
50 °C
Hydrolysis rate constant:
< 10 d-1
DT50:
> 1 yr
Details on results:
The analytical method has been determined to be substance specific and of sufficient accuracy for the test material in this study.
Conclusions:
Please refer to results.

Description of key information

Low rate of hydrolysis; not considered to be a significant degradation process

Key value for chemical safety assessment

Half-life for hydrolysis:
1 yr
at the temperature of:
25 °C

Additional information

The half-life at25°Cof Ethyl tetrahydrofurfuryl ether is shown in Table 10.1.

Table 10.1

pH

Estimated half-life at25'C

4

Greater than 1 year

7

Greater than 1 year

9

Greater than 1 year