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Environmental fate & pathways

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Administrative data

Endpoint:
other distribution data
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Study period:
January 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: accepted calculation method

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Calculation of volatilization from water according to Thomas RG (1990, Volatilization from water.  In: Handbook of Chemical Property Estimation Methods.  Lyman, W.J. et al. (eds), Washington, DC: American Chemical Society,  Chapter 15)
Type of study:
other: calculation method
Media:
water - air

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid
Details on test material:
- Name of test material (as cited in study report): diisotridecyl adipate

Results and discussion

Any other information on results incl. tables

Using a calculated HLC of 0.000674 atm*m³/mol (US EPA EPI Suite, program HENRYWIN, group contribution method), a water solubility of 0.001 mg/L (Sect. 4.8), and the conditions indicated below, the following half-lives for volatilization from rivers and lakes were calculated:

 

 

River

Lake

Water depth [m]

1

1

Wind velocity [m/sec]

5

0.5

Current velocity [m/sec]

1

0.05

Half-Life [hr]

4.27

236.1

Half-Life [d]

0.1779

9.837

 

Applicant's summary and conclusion

Executive summary:

Using a calculated Henry's Law Constant (HLC) of 6.83 Pa*m³/mol at 25 C (EPI Suite, program HENRYWIN, group contribution method), volatilization half-lives for diisotridecyl adipate of 4.27 and 236.1 hr (9.84 d) were estimated for a model river and a model lake, respectively.