Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27.09.2012 to 16.10.2012
Reliability:
1 (reliable without restriction)

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: by pH meter
Principles of method if other than guideline:
Measured as negative log of Hydrogen Ion concentration using pH meter & appropriate Buffers of pH 4 & 9
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
other: amorphous
Details on test material:
- Name of test material : phthalylsulfathiazole
- Molecular formula : C17H13N3O5S2
- Substance type: Organic
- Physical state: Solid

Results and discussion

pH value
pH value:
3.54
Temp.:
26 °C
Concentration:
1 vol%
Remarks on result:
other: relatively acidic

Applicant's summary and conclusion

Conclusions:
1% by volume solution of phthalylsulfathiazole was found to exhibit a pH of 3.54 at 26 degC. Thus 1% by volume solution of phthalylsulfathiazole is relatively acidic in nature.
Executive summary:

1% by volume solution of phthalylsulfathiazole was found to exhibit a pH of 3.54 at 26 degC. Thus 1% by volume solution of phthalylsulfathiazole is relatively acidic in nature.