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Environmental fate & pathways

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Administrative data

Endpoint:
other distribution data
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP study.

Data source

Reference
Reference Type:
other: Poster
Title:
Volatilization and partitioning of fragrance materials
Author:
Zhang, S., Chiu, P.C., Allen, H.E. & Salvito, D.T.
Year:
2003
Bibliographic source:
Poster presented at SETAC 24th annual meeting, Austin, USA

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: not mentioned in the RAR.
Principles of method if other than guideline:
Sludge-water partitioning coefficients for adsorption and desorption were studied by entering HHCB either to the water or to the sludge.
GLP compliance:
not specified
Type of study:
other: determination of Kd
Media:
other: sludge-water

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylindeno[5,6-c]pyran
EC Number:
214-946-9
EC Name:
1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylindeno[5,6-c]pyran
Cas Number:
1222-05-5
Molecular formula:
C18H26O
IUPAC Name:
4,6,6,7,8,8-hexamethyl-1H,3H,4H,6H,7H,8H-indeno[5,6-c]pyran

Results and discussion

Any other information on results incl. tables

log Kd (ads) is 3.12; log Kd (des) is 3.31. These are true log Kd values, biotransformation has been ruled out as a factor influencing log Kd.

Applicant's summary and conclusion

Conclusions:
log Kd (ads) is 3.12; log Kd (des) is 3.31. These are true log Kd values, biotransformation has been ruled out as a factor influencing log Kd.
Executive summary:

Sludge-water partitioning coefficients for adsorption and desorption were studied by entering HHCB either to the water or to the sludge. Sludge was spiked with HHCB in 4L-glass jars and rolled at 10 rpm for 1 hour. The sludge was equilibrated at 5ºC in the darkness during 3 weeks and sterilised by 0.01 M HgCl. Log Kd (adsorption) = 3.12, whereas log Kd (desorption) = 3.31.