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EC number: 210-784-8 | CAS number: 623-27-8
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
Test material
- Reference substance name:
- Terephthalaldehyde
- EC Number:
- 210-784-8
- EC Name:
- Terephthalaldehyde
- Cas Number:
- 623-27-8
- Molecular formula:
- C8H6O2
- IUPAC Name:
- benzene-1,4-dicarbaldehyde
- Test material form:
- solid: particulate/powder
Constituent 1
- Specific details on test material used for the study:
- Batch (Lot) Number: 180401
Expiry date: 01 April 2020 (retest date)
Physical Description: Light yellow powder
Purity/Composition: 99.6%
Storage Conditions: At room temperature
Results and discussion
Water solubility
- Key result
- Water solubility:
- ca. 1.22 g/L
- Conc. based on:
- test mat.
- Loading of aqueous phase:
- 1.26 g/L
- Incubation duration:
- ca. 72 h
- Temp.:
- 20.1 °C
- pH:
- >= 6.7 - <= 6.8
Any other information on results incl. tables
Preliminary Test
The content of test item dissolved in the water sample was 1.26 g/L.
Main Study:
The results for the samples taken at 24, 48 and 72 hours are given inTable 6.
The maximum difference of the concentrations determined in the 24, 48 and 72 hour test samples was≤ 15%. Based on this, the water solubility of the test item is given as the mean value of the analyzed concentrations.
No test item was detected in the pretreated sample from the blank water mixture
Table 6
Water Solubility of the Test Item
Stirring time |
Analyzed concentration |
Mean |
Maximum difference |
pH |
|
|
|
|
|
24 |
1.20 |
1.22 |
2.9 |
6.8 |
|
|
|
|
|
48 |
1.23 |
|
|
6.7 |
|
|
|
|
|
72 |
1.23 |
|
|
6.8 |
|
|
|
|
|
Applicant's summary and conclusion
- Conclusions:
- The flask method was applied for the determination of the water solubility of Terephthaldehyde.
The water solubility of the test item at 20°C was 1.22 g/L.
The pH of the aqueous samples was 6.7 and 6.8.
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