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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Adequacy of study:
supporting study
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: Supporting evidence

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 202 daphnia immobilisation Test
Principles of method if other than guideline:
The species Daphnia magna (Straus) was esposed to the substance Biodegradation Products of Ampholak 7TS for 48 h at concentrations from 6.25 % to 100 %. The EC50 value was calculated as 50.1 %b (48 h) which corresponds to 35.5 mg ampholak 7TX/L effluent. The ECo value was determined as 6.25 % which corresponds to 4.4 mg Ampholak 7TX:L effluent.
The EC IOO could not be observed.
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
Amines, N-C8-22-alkylpolytrimethylenepoly-, carboxymethyl derivs., sodium salts
EC Number:
307-458-3
EC Name:
Amines, N-C8-22-alkylpolytrimethylenepoly-, carboxymethyl derivs., sodium salts
Cas Number:
97659-53-5
Details on test material:
Test Substance: Test substance was the effluent of a Coupled-Units test (OECD
303 .4) with 71 mg Ampholak 7TX per litre. The Coupled-Units test aas performed
by Dr. Lebertz at Battelle, Study Number V 67 069.

Results and discussion

Applicant's summary and conclusion

Conclusions:
This study is reliable for use as supporting evidence as to the toxicicy of Biodegraded Ampholack 7TX to daphnia magna.
Executive summary:

Highest test concentration causing no immobilization within the period of the test (ECo): 6.25 %. Lowest test concentration causing 100% immobilization within the period of the test ( EC100) : could not be observed. EC50 value after 24 h: 89.1 % Standard deviation: 13.3 % 95 % confidence interval: 26.1 % (63.1 - 115.2 %) EC5O value after 48 h: 50.1 % 6 Standard deviation: 7.3%6 95 % confidence interval: 14.3 % (35.8 - 64.4 %)