Registration Dossier

Physical & Chemical properties

Water solubility

Currently viewing:

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
June 2006-Feb 2007
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.6 (Water Solubility)
Qualifier:
according to
Guideline:
OECD Guideline 105 (Water Solubility)
GLP compliance:
yes
Type of method:
flask method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
Sponsor batch no: 151105Purity: 99.9%

Results and discussion

Water solubilityopen allclose all
Water solubility:
1.497 mg/L
Incubation duration:
96 h
Temp.:
20 °C
pH:
ca. 6.05
Water solubility:
1.467 mg/L
Incubation duration:
72 h
Temp.:
20.1 °C
pH:
ca. 6.05
Water solubility:
1.559 mg/L
Incubation duration:
48 h
Temp.:
20.1 °C
pH:
ca. 6.03
Water solubility:
1.208 mg/L
Incubation duration:
24 h
Temp.:
20.1 °C
pH:
ca. 6.04
Water solubility:
1.614 mg/L
Incubation duration:
18 h
Temp.:
20.1 °C
pH:
ca. 5.98
Details on results:
The solubility of Beta Ketosulfide in double distilled water at 20.1C was considered to have reached a state of equilibrium by the 96 hour sample. The mean solubility value, calculated from eight ana lyses at this sampling occasion, was 1.497 ug/mL. with a standard deviation of 0.0413 ug/mK (CV = 2.76%). The pH values for the two samples after equilibrating for 96 hours were 6.47 and 5.63 and the mean of these was calculated as pH 6.05.

Applicant's summary and conclusion

Conclusions:
The solubility of Beta Ketosulfide at 20.1°C in double distilled water was detemined by a modified shake flask method to be 1.497 µg/mL (S[\n- 1) 0.0413, CV -2.76%) with a resultant mean pH of nominally 6.05.
Executive summary:

Because of technical problems with the adherence of the test substance to the inert support material prevented this technique from being used to determine the solubility in distilled water. This procedure was based on that outlined in OECD Guideline105, and meets the requirements of EC Directive 92/69/ EEC Method A6.

 

The solubility of Beta Ketosulfide at 20.1C in double distilled water was determined by a modified shake flask method to be 1.497ug/ml (SD(n-1) 0.0413,CB=2.76%) with a resultant mean pH of nominally 6.05.