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EC number: 940-272-6 | CAS number: 2097734-13-7
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2014-02-18 to 2014-07-03
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ASTM D1293 (Standard Test Methods for pH of Water)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Bis[C5-(linear and branched)-alkyl] benzene-1,4-dicarboxylate
- EC Number:
- 940-272-6
- Cas Number:
- 2097734-13-7
- Molecular formula:
- C18H26O4
- IUPAC Name:
- Bis[C5-(linear and branched)-alkyl] benzene-1,4-dicarboxylate
- Test material form:
- liquid
Constituent 1
Reagents
- Reagent:
- water
Titration of acidity and alkalinity
- Details on titrant used:
- Apparatus: - Metrohm Titrino 736 (Metrohm)
-analytical balance (Mettler-Toledo)
- thermometer (Morgenbrot)
Reagents: - purified water from laboratory equipment
-buffer pH 4, 7 and 9 (Metrohm) for calibration
Results and discussion
pH value
- Key result
- pH value:
- 5.3
- Temp.:
- 24.4 °C
- Concentration:
- 10 other: weight-%
Any other information on results incl. tables
For the concentration of 10 weight-% in water, 10.0093 g of the test item were weighted and fi lled up to 1 00 g with purified water.
The clean glass electrode is given in the test solution. After reaching a constant measuring value this was red off (temperature: 24.4 °C).
| Test item concentration | First run | Second run |
| 10 weight-% in water | 5.27 | 5.25 |
| mean value | 5.3 | |
Applicant's summary and conclusion
- Conclusions:
- pH-value of double determination: 5.3
- Executive summary:
pH-value of double determination: 5.3
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