Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
07.03.2013 to 18.03.2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Experimental test result performed using standard test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report Date:
2013

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 substance: 6-amino-4-hydroxynaphthalene-2-sulphonic acid
Molecular formula: C10H9NO4S
Substance type:organic
physical state:solid

Results and discussion

pH value
Key result
pH value:
3.03
Temp.:
25 °C
Concentration:
1 vol%
Remarks on result:
other: No other detail available

Applicant's summary and conclusion

Conclusions:
1% by volume solution of test chemical was determine to exhibit a pH of 3.03 at 25 deg C. Thus 1% by volume solution of test chemical is relatively acidic in nature.
Executive summary:

1% by volume solution of test chemical was determine to exhibit a pH of 3.03 at 25 deg C. Thus 1% by volume solution of test chemical is relatively acidic in nature.