[No public or meaningful name is available]

Hydrolysis

Administrative data

Endpoint:

hydrolysis

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP Guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 111 (Hydrolysis as a Function of pH)

GLP compliance:

yes (incl. QA statement)

Test material

Reference

Name:

Unnamed

Type:

Constituent

Details on test material:

- Name of test material (as cited in study report): Gelb LD 6259
- Analytical purity: 61.3 g per 100 g
- Lot/batch No.: 0817VP01

Study design

Buffers:

- pH: 4, 7, 9
- Composition of buffer: pH 4 (Bernd Kraft, citric acid, sodium chloride, sodium hydroxide), pH 7 (Bernd Kraft, phosphate mixture), pH 9 (Bernd Kraft, boric acid, sodium hydroxide, potassium chloride), acetonitrile, dipotassium hydrogenphosphate, PIC A reagent (tetrabutylammonium hydroxide waters)

Results and discussion

Dissipation DT50 of parent compound

Dissipation DT50 of parent compound 1

pH:

4

Temp.:

50 °C

Remarks on result:

other: no hydrolysis observed (<10 % within 5 days)

Dissipation DT50 of parent compound 2

pH:

7

Temp.:

50 °C

Remarks on result:

other: no hydrolysis observed (<10 % within 5 days)

Dissipation DT50 of parent compound 3

pH:

9

Temp.:

50 °C

Hydrolysis rate constant:

0.01 h-1

DT50:

68.3 h