Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 12 July 2022
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
- Key result
- Temp.:
- 20 °C
- pH:
- >= 3 - <= 5
- Remarks on result:
- completely miscible
- Remarks:
- The test item was completely miscible with water in all ratios (visual judgement).
- Details on results:
- The test item was completely miscible with water in all ratios (visual judgement). Therefore, no definitive water solubility can be determined but the test item was considered to be “miscible with water in all proportions”. The pH increased from 3 (lowest amount of water added) to 5 (highest amount of water added).
- Conclusions:
- The solubility of Kombucha in water was determined from adding different volumes of water to the test item to cover a range of 1:10 (test item:water) to 10:0.1. The test item was completely miscible with water in all ratios (visual judgement). Therefore, no definitive water solubility can be determined but the test item was considered to be “miscible with water in all proportions”. The pH increased from 3 (lowest amount of water added) to 5 (highest amount of water added).
No observations were made which might give doubts concerning the validity of the study outcome.
Reference
> Main test with 1 g of test item
| Added Volume [mL] | 0.1 | 0.5 | 1 | 2 | 10 |
| Approx. Solubility [g/L] | > 10000 | 10000–2000 | 2000–1000 | 1000–500 | 500-100 |
| miscible | yes | yes | yes | yes | yes |
| temperature | 20.1 | 19.9 | 20.1 | 20.3 | 20.1 |
| pH (with indicator paper) | 3 | 5 |
> Main test with 10 g of test item
| Added Volume [mL] | 0.1 | 0.5 | 1 | 2 | 10 |
| Approx. Solubility [g/L] | > 100000 | 100000-20000 | 20000- 10000 | 10000–5000 | 5000–1000 |
| miscible | yes | yes | yes | yes | yes |
| temperature | 20.1 | 19.9 | 20.1 | 20.0 | 19.9 |
| pH (with indicator paper) | 3 | 4 |
Description of key information
The solubility of Kombucha in water was determined from adding different volumes of water to the test item to cover a range of 1:10 (test item:water) to 10:0.1. The test item was completely miscible with water in all ratios (visual judgement). Therefore, no definitive water solubility can be determined but the test item was considered to be “miscible with water in all proportions”. The pH increased from 3 (lowest amount of water added) to 5 (highest amount of water added).
No observations were made which might give doubts concerning the validity of the study outcome.
Key value for chemical safety assessment
Additional information
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