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Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
No data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The study was not conducted according to guideline/s and GLP but the report contains sufficient data for interpretation of study results
Cross-referenceopen allclose all
Reason / purpose for cross-reference:
reference to same study
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1977

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
American Public Health Association, American Water Works Association, and Water Pollution Control Federation, Standard Methods for the Examination of Water and Wastewater, 14th Edition, American Public Health Association, Washington, D.C. 1975
GLP compliance:
no
Type of study / information:
No data

Test material

Constituent 1
Chemical structure
Reference substance name:
Reaction mass of divinylbenzene and ethylstyrene
EC Number:
910-757-7
Cas Number:
N/A
Molecular formula:
Divinylbenzene: C10H10 Ethylstyrene: C10H12
IUPAC Name:
Reaction mass of divinylbenzene and ethylstyrene
Details on test material:
Divinylbenzene-55 (DVB-55) is a colorless liquid monomer which is 55% divinylbenzene (36:19 meta to para isomers) and 45% ethylvinylbenzene (25:23 meta to para isomers).

The test sample, dated 01-27-77, was submitted by N. Hebert, Organic Chemicals Development.

Results and discussion

Any other information on results incl. tables

Biochemical Oxygen Demand (BOD)

Days BOD (p/p) BOD/TOD (%)

5 0 0

10 0 0

20 0 0

Applicant's summary and conclusion

Conclusions:
DBV-55 does not consume oxygen in the standard 20-day BOD test and will probably not degrade in a biological wastewater treatment plant.
Executive summary:

Screening tests were run on a sample of divinylbenzene-55 (DVB-55) and the following conclusions may be made:

Movement

Water solubility is 44 mg/L and the vapor pressure is 1.0 mmHg at 33C. Removal after 1 hour aeration was 96% by sensitive dichromate analysis and 100% after 4 hours.

Stability

DBV-55 does not consume oxygen in the standard 20-day BOD test and will probably not degrade i n a biological wastewater treatment plant.

Bioconcentration

DVB-55 has a predicted bioconcentration factor (BCF) of 184 which may be contrasted with PCB which has a BCF of 10,000 or more. The persistence of DVB-55 in the aquatic environment is unknown.

Fish toxicity

DVB-55 showed 96-hr LC 10-50-90 values of 6.6 (4.4-7.2)*, 7.5 (6.5-8.1) , and 8.6 (8.1-10.8) mg/L, respectively, to fathead minnows, Pimephales promelas Raf inesque, in static water tests.

*95% Confidence Interval