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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18.12.2012 - 03.01.2013
Reliability:
1 (reliable without restriction)

Data source

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

Materials and methods

Test guideline
Qualifier:
according to guideline
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

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-amino-5-nitrobenzenesulphonate
EC Number:
250-299-9
EC Name:
Sodium 2-amino-5-nitrobenzenesulphonate
Cas Number:
30693-53-9
Molecular formula:
C6H6N2O5S.Na
IUPAC Name:
sodium 2-amino-5-nitrobenzenesulphonate
Constituent 2
Reference substance name:
sodium 2-amino-5nitrobenzenesulphonate
IUPAC Name:
sodium 2-amino-5nitrobenzenesulphonate
Details on test material:
-Name of the test material: sodium 2-amino-5-nitrobenzenesulphonate
-Physical State: Solid
-Substance type: Organic
-Molecular formula: C6H6N2O5S.Na
-Molecular weight: 240.1691

Results and discussion

pH value
pH value:
8.62
Temp.:
24 °C
Concentration:
1 vol%
Remarks on result:
other: Relatively basic

Applicant's summary and conclusion

Conclusions:
The pH of sodium 2-amino-5nitrobenzenesulphonate was found to be 8.62 at a temperature of 23 °C indicating the chemical to be relatively basic.
Executive summary:

pH is measured as negative log of hydrogen ion concentration using pH meter and appropriate buffers of pH 4 and 9. The pH of sodium 2-amino-5nitrobenzenesulphonate at 1% solution and temperature 23 °C was found to 8.62 indicating the chemical to be relatively basic