Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study report with good documentation and according to GLP

Data source

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

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
No guideline available. For details on method see below.
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hypochlorite
EC Number:
231-668-3
EC Name:
Sodium hypochlorite
Cas Number:
7681-52-9
Molecular formula:
ClO.Na
IUPAC Name:
sodium hypochlorite
Details on test material:
5.4 % available chlorine

Results and discussion

pH valueopen allclose all
pH value:
12.5
Temp.:
19.1 °C
Concentration:
other: pure test item
pH value:
10.3
Temp.:
21.3 °C
Concentration:
1 other: (m/v)

Applicant's summary and conclusion

Executive summary:

The pH value of sodium hypochlorite solutions is alkaline. The pH value of a 5 % sodium hypochlorite solution was determined to be pH = 12.52 at 19.1 °C for the pure test item and pH = 10.30 at 21.3 °C for a 1 % (m/v) solution.