Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
01/2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report Date:
2012

Materials and methods

Principles of method if other than guideline:
pH measurement in aqueous solution
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
- Purity: 80.6 % (according to the sponsor)

Results and discussion

pH valueopen allclose all
pH value:
10.3
Remarks on result:
other: 0.5 g substance in 49.51 g water at room temperature
pH value:
10.4
Remarks on result:
other: 1.0 g substance in 9.01 g water at room temperature

Any other information on results incl. tables

The substance was stirred for 30 min at room temperature with a magnetic stirrer. The concentration ratio was once 1:99 and once 1:9 (substance / water).

Applicant's summary and conclusion

Conclusions:
The measured pH value of the substance at different concentrations in aqueous solution was in the range of 10.3 - 10.4.
Executive summary:

The substance was stirred for 30 min at room temperature with a magnetic stirrer. The concentration ratios were 1:99 and 1:9 (substance / water). The pH value was in the range of 10.3 - 10.4 in the aqueous solution.