Registration Dossier
Registration Dossier
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EC number: 201-557-4 | CAS number: 84-74-2
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption
- Type of information:
- other: Well documented report, based on scientific literature.
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No guideline is reported
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- no guideline is reported
- Type:
- log Koc
- Value:
- 3.14
- Remarks on result:
- other: measured value according Russell and McDuffie 1986
- Type:
- log Koc
- Value:
- 4.17
- Remarks on result:
- other: measured value according Sullivan et al. 1982
- Conclusions:
- In water, di-n-butyl phthalate adsorbs to suspended particles, but, in many cases, the majority remains dissolved. Only associated with dissolved humic materials, potentially increase the apparent water solubility by a small amount.
Based on Henry’s law constants of 4.5x10 -6 (Roy 1994) and 8.83x10-7 (Staples et al. 1997) atm-m3/mole, di-n-butyl phthalate is not expected to volatilize significantly from water to the atmosphere.
Reference
Description of key information
In water, di-n-butyl phthalate adsorbs to suspended particles, but, in many cases, the majority remains dissolved. Only associated with dissolved humic materials, potentially increase the apparent water solubility by a small amount.
Based on Henry’s law constants of 4.5x10 -6 (Roy 1994) and 8.83x10-7 (Staples et al. 1997) atm-m3/mole, di-n-butyl phthalate is not expected to volatilize significantly from water to the atmosphere
Key value for chemical safety assessment
- Koc at 20 °C:
- 1 380
Additional information
[LogKoc: 3.14]
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