Registration Dossier
Registration Dossier
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EC number: 910-757-7 | CAS number: -
Hydrolysis
Administrative data
Link to relevant study record(s)
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 111 (Hydrolysis as a Function of pH)
- GLP compliance:
- no
- Radiolabelling:
- not specified
- Analytical monitoring:
- not specified
- Details on sampling:
- No data
- Buffers:
- No data
- Details on test conditions:
- Water Temperature: 49-51°C
pH: pH4, pH7 and pH9
Exposure Vessel Type: Glass vial
Number of Replicates: 2
Test Period: 5 days - Duration:
- 5 d
- Number of replicates:
- 2
- Positive controls:
- not specified
- Negative controls:
- not specified
- Statistical methods:
- No data
- Preliminary study:
- No data
- Test performance:
- No data
- Transformation products:
- not specified
- Details on hydrolysis and appearance of transformation product(s):
- No data
- Remarks on result:
- other: Stable at 25° and 49-51°C at pH 4, 7 and 9 in water over 5 days.
- Details on results:
- Both p- and m-divinylbenzene are not decomposed at 49-51°C and at pH 4, 7 and 9 in water after 5 days. Stable (at 25°C)
- Validity criteria fulfilled:
- yes
- Conclusions:
- Both p- and m-divinylbenzene are not decomposed at 49-51°C and at pH 4, 7 and 9 in water after 5 days. Stable (at 25°C)
- Executive summary:
The study was conducted according to OECD Guideline 111 "Hydrolysis as a Function of pH". Both p- and m-divinylbenzene are not decomposed at 49-51°C and at pH 4, 7 and 9 in water after 5 days. Stable (at 25°C).
Reference
Description of key information
Both p- and m-divinylbenzene are stable at 25° and 49-51°C at pH 4, 7 and 9 in water over 5 days.
Key value for chemical safety assessment
Additional information
The components of DVB-HP, -63, and -55 (divinylbenzene and ethylvinylbenzne) do not possess structural groups which are susceptible to hydrolysis under pH/temperature conditions occurring in the environment. This was shown experimentally, where the components of a mixture of p- and m- DVB were stable at pH 4, 7, and 9 at 50°C over 5 days.
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