Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
other distribution data
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Reliable test data fromstability trials performed prior to GLP-compliant, OECD guideline test of toxicity to aquatic invertebrates and algae

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Stability tests measuring test substance concentrations in water at 0h and then after 48 or 96h, comparing open and closed vessels
GLP compliance:
yes
Type of study:
other: Stability trials prior to aquatic toxicity tests
Media:
water - air

Test material

Constituent 1
Chemical structure
Reference substance name:
tert-butyl acetate
EC Number:
208-760-7
EC Name:
tert-butyl acetate
Cas Number:
540-88-5
Molecular formula:
C6H12O2
IUPAC Name:
tert-butyl acetate
Test material form:
other: clear,colourless liquid
Details on test material:
Batch OD61002001

Results and discussion

Any other information on results incl. tables

Stability trials: analytical findings

 

Test duration

48h (prior to Daphnia test)

96h (prior to algal test)

Nominal initial concentration

(mg/l)

100

320

1000

10

100

1000

Measured initial concentration (mg/l)

95.1

302

955

11.2

107

1070

Final concentrations (% of 0h value)

Sealed vessel, light

97

89

99

0 (<LOQ)

28

94

Sealed vessel, dark

94

94

97

0 (<LOQ)

24

94

Open vessel, dark

29

Not determined

20

0 (<LOQ)

Not determined

0 (<LOQ)

Results in shaded boxes show rapid loss of test substance from open vessels, not seen in sealed replicate vessels

Applicant's summary and conclusion

Conclusions:
In these tests performed at ambient laboratory temperature, GC analysis of aqueous solutions showed 65-77% loss of test substance via volatilisation from water over 48h at 95-955 mg/l, and total or near-total total loss over 96h at 1070 mg/l.