tert-butyl acetate

Other distribution data

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

Reference

Reference 1

Reference Type:

study report

Title:

Unnamed

Year:

2007

Report date:

2007

Reference 2

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

Test material information

Constituent 1

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.