Registration Dossier
Registration Dossier
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EC number: 204-017-6 | CAS number: 112-92-5
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- other: Data obtained from a collection of reliable data
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Water solubility:
- 0.001 mg/L
- Temp.:
- 25 °C
- Conclusions:
- A water solubility value of 0.0011 mg/l at 25°C was reported for the substance in a collection of reliable data.
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-10-02
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Test procedure in accordance with national standard methods (ASTM) without GLP.
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E 1148
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
- Key result
- Water solubility:
- < 1 mg/L
- Temp.:
- 23 °C
- pH:
- 5.5
- Remarks on result:
- other: Standard Deviation for these Data : none
- Conclusions:
- A water solubility value of <1.0 mg/l at 23°C was determined for the substance using a relevant test method. The result is considered to be reliable.
- Executive summary:
Octadecan-1-ol was determined according ASTM E 1148. The water solubility was determined to be <1.0 mg/l at 23 °C.
Referenceopen allclose all
Measurement
(triple determination)
Results: Not Detected / Not Detected / Not Detected
Mean Concentration in Water: <1.0 mg/L
Standard Deviation for These Data: none
Description of key information
The water solubility of a commercial sample of octadecan-1-ol is <1 mg/L at 23°C and pH 5.5 (ASTM E 1148). A value of 1.1E-03 mg/L for the pure alcohol is available from a reliable literature reference source (Budavari, 1996).
Key value for chemical safety assessment
- Water solubility:
- 0.001 mg/L
- at the temperature of:
- 25 °C
Additional information
A solubility value of <1 mg/L at 23°C and pH 5.5 was determined for the substance with the use of a flask method in accordance with ASTM E 1148. The result is considered to be reliable.
It is supported by a value of 1.1E-03 mg/L, taken from a reliable and definitive reference source for solubility data (Budavari, 1996). This value for the pure alcohol is used in exposure assessment.
Discussion of trends in the Category of C6-24 linear and essentially-linear aliphatic alcohols:
As chain length increases, water solubility decreases, because the free energy required for a molecule to dissolve becomes less favourable for larger molecules.
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