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EC number: 923-400-5 | CAS number: -
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2011-2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP and guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- CIPAC MT 75 (Determination of pH Values)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- dodecane-12-lactam, manufacturing of, by-products from, distillation residues
- EC Number:
- 923-400-5
- IUPAC Name:
- dodecane-12-lactam, manufacturing of, by-products from, distillation residues
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Results and discussion
pH valueopen allclose all
- pH value:
- 9.44
- Temp.:
- 20.8 °C
- Concentration:
- 1 other: % w/v
- Remarks on result:
- other: after 1 min
- pH value:
- 9.61
- Temp.:
- 20.9 °C
- Concentration:
- 1 other: % w/v
- Remarks on result:
- other: after 2 min
- pH value:
- 9.81
- Temp.:
- 20.9 °C
- Concentration:
- 1 other: % w/v
- Remarks on result:
- other: after 10 min
Any other information on results incl. tables
4. Results
4.1. Reference item
Di-sodium tetraborate 0.05 mol/L solution
Measured pH value 9.24 at 20.9 °C
Theoretical pH value 9.22 at 20.0 °C
The values were accepted.
4.2. Standard water D
Measured pH value 6.67 at 20.4 °C
4.3. Test item at 1% w/v in standard water D
Assay No. |
After 1 min |
After 2 min |
After 10 min |
|||
pH values |
Temperature (°C) |
pH values |
Temperature (°C) |
pH values |
Temperature (°C) |
|
1 |
9.41 |
20.9 |
9.58 |
21.0 |
9.80 |
21.0 |
2 |
9.47 |
20.6 |
9.64 |
20.7 |
9.81 |
20.8 |
Applicant's summary and conclusion
- Conclusions:
- The pH mean value of the test item at 1% w/v in standard water D was:
9.44 at 20.8 °C after 1 min.
9.61 at 20.9 °C after 2 min.
9.81 at 20.9 °C after 10 min. - Executive summary:
A GLP and guideline study is available. The pH mean value of the test item at 1% w/v in standard water D is found to be: 9.44 at 20.8 °C after 1 min. 9.61 at 20.9 °C after 2 min. 9.81 at 20.9 °C after 10 min.
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