Registration Dossier
Registration Dossier
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EC number: 269-142-0 | CAS number: 68188-14-7
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2019
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
Data source
Reference
- Reference Type:
- other: unpublished study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- GLP compliance:
- no
- Type of method:
- flask method
Test material
- Reference substance name:
- Resin acids and Rosin acids, barium salts
- EC Number:
- 269-142-0
- EC Name:
- Resin acids and Rosin acids, barium salts
- Cas Number:
- 68188-14-7
- Molecular formula:
- N/A
- IUPAC Name:
- Resin acids and Rosin acids, barium salts
- Test material form:
- solid
1
Results and discussion
Water solubility
- Key result
- Water solubility:
- 554.5 mg/L
- Conc. based on:
- test mat. (total fraction)
- Incubation duration:
- 96 h
- Temp.:
- 23 °C
- pH:
- 8.4
- Remarks on result:
- other: solublity of the whole substance
- Details on results:
- The water test samples have been measured via UPLC-DAD-MS and evaluated in negative ESI-MS mode. The three component groups Abietic Acid, Pimaric Acid and Isomers / Dehydroabietic Acid / Oxidation Products have been detected and quantified.
The measured concentrations of the different component groups did not show strong differences between day 3 and 4 of the water solubility test (< 0.2% deviation for Abietic Acid, Pimaric Acid and Isomers; 9.2% deviation for Dehydroabietic Acid and 2.3% deviation for the Oxidation Products ). These are acceptable deviations to derive that the concentration is constant (less than 15% difference between flasks according to the OECD 105 guideline).
The average result of 3 days and 4 days test samples was calculated and is given with the average pH value in the following:
The water solubility of Resin acids and Rosin acids, Barium salts after 4 days tests was determined as:
Water solubility after 4 days: 554.5 mg/L*
*sum of soluble components:
Abietic Acid, Pimaric Acid and Isomers: 12.4 mg/L
Dehydroabietic Acid: 12.3 mg/L
Oxidation Products: 529.8 mg/L
pH: 8.4
Room temperature : 23.0°C
Applicant's summary and conclusion
- Conclusions:
- The water solubility of the detectable components A(bietic Acid, Pimaric Acid and Isomers and Dehydroabietic Acid:) was determined to be 554.5 mg/L at 23°C and at pH 8.4.
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