Registration Dossier
Registration Dossier
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EC number: 263-134-0 | CAS number: 61790-41-8
Solubility in organic solvents / fat solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- solubility in organic solvents / fat solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February 02, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: OECD Guideline 105
- Deviations:
- not specified
- GLP compliance:
- not specified
- Key result
- Medium:
- n-octanol
- Solubility:
- ca. 260 g/L
- Temp.:
- 20 °C
- Remarks on result:
- other: pH: 7
- Conclusions:
- Under study conditions, the n-octanol solubility of the test substance, TMAC S, was determined to be 260 g/L at 20°C.
- Executive summary:
A study was conducted to determine the octanol solubility of the test substance, TMAC S (88.3% active), using visual screening test according to a method similar to OECD Guideline 105. The test substance was mixed with 1-octanol saturated with water (using slow-stirring conditions for at least 24 h, Milli-Q water was used) at different ratios in order to determine the octanol solubility. It was assumed that there were no changes in volume when mixing 1-octanol with the test substance. Different weight ratios were prepared with substance in 1-octanol saturated with water (5%,10%, 20%, 30%, 40%, 50% and 60%) and shaken overnight and then inspected for solubility visually. Based on the shake experiments and checking for transparency, the octanol solubility limit of the test substance was detected to be 260 g/L. Under study conditions, the octanol solubility of the test substance, TMAC S, was determined to be 260 g/L at 20°C (Andersson, 2018).
Reference
Result
The pH in solution was ca. 7 and temperature close to 20°C.
From the shake experiments the solubility limit of the substance in saturated 1-octanol was determined to be 1,4000 g in a final volume of 5,4000 cm3 (measured volumetrically).
Octanol solubility = Weight substance (1,4000 g)/ Total volume (5,4000 cm3) = 0,2593 g/cm3 mixture.
The octanol solubility of Soya TMAC was determined to be 260 g/L mixture.
Description of key information
The solubility of the test substance in organic solvents was determined using the visual screening test, according to a method similar to OECD Guideline 105 (Andersson, 2018).
Key value for chemical safety assessment
- At the temperature of:
- 20 °C
- Solubility in organic solvents at 20°C:
- 260 g/L
Additional information
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