Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Water solubility
Administrative data
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From December 12, 2018 to March 6, 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
- Report date:
- 2019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: HJ/T 153-2004 “The Guidelines for the Testing of Chemicals, Physical-Chemical Properties and Physical Hazards”, the second version, No.105 (OECD Guidelines for Testing of Chemicals No.105 "Water solubility").
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- flask method
Test material
- Reference substance name:
- Sulfonic Acids, C18-alkane hydroxyl and C18-alkene, potassium salts
- Cas Number:
- 2210238-56-3
- IUPAC Name:
- Sulfonic Acids, C18-alkane hydroxyl and C18-alkene, potassium salts
- Test material form:
- solid
- Remarks:
- Color: White to pale yellow This sample was obtained from the original liquid form by removing water.
Constituent 1
- Specific details on test material used for the study:
- -Storage conditions
Store container tightly closed in well-ventilated place. Store in corrosive resistant container with a resistant inliner. Store locked up. Don't store with acids.
-Test item stability under storage conditions
Stable in container after opening. Stable in water and in light. Stability in soil is not applicable.
Results and discussion
Water solubility
- Key result
- Water solubility:
- 473.95 g/L
- Conc. based on:
- act. ingr.
- Incubation duration:
- 24 - 72 h
- Temp.:
- 20 °C
- pH:
- 10 - 10.04
Any other information on results incl. tables
Test Results
The clarify water phase of samples with different equilibrium time was taken to determine by the analysis method. The results showed that the water solubility of C18K was 473.95 g・L-1, as shown in Table 3.
Table 3 Results of water solubility test with C18K
Added amount (g) | Equilibrium time | pH | Weight of weighed supernatant m (g) | Measured concentrations ci (µg・mL-1) | Volume V(mL) | Dilute times | Actual concentrations (g・L-1) | Average solubility (g・L-1) |
39.60 | 24h | 10.04 | 0.01161 | 52.66 | 100 | 1000 | 453.57 | 473.95 |
39.82 | 48h | 10.03 | 0.01208 | 61.15 | 100 | 1000 | 506.21 | |
39.59 | 72h | 10.00 | 0.01094 | 50.55 | 100 | 1000 | 462.07 |
Applicant's summary and conclusion
- Conclusions:
- The water solubility of the registered substance was determined to be 473.95 g/L at 20ºC. The pH of the aqueous solution was 10.00-10.04.
- Executive summary:
-Objective
The aim was to determine solubility of C18K in water, and being an important parameter for the environmental assessment.
-Test guideline
HJ/T 153-2004 “The Guidelines for the Testing of Chemicals, Physical-Chemical Properties and Physical Hazards”, the second version, No.105 (OECD Guidelines for Testing of Chemicals No.105 "Water solubility").
-Test method
Flask method was used in this test.
-Results
The water solubility of C18K was 473.95 g/L at 20ºC. The pH of the aqueous solution was 10.00-10.04.
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