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Environmental fate & pathways

Adsorption / desorption

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Reference
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.

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]