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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

pH

Currently viewing:

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study generated according to generally accepted testing guideline.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: CIPAC J MT Methods 75.3
Deviations:
no
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium sulphide
EC Number:
215-211-5
EC Name:
Disodium sulphide
Cas Number:
1313-82-2
Molecular formula:
Na2S
IUPAC Name:
disodium sulfide
Constituent 2
Reference substance name:
sodium sulfide (60 %)
IUPAC Name:
sodium sulfide (60 %)
Details on test material:
- Name of test material (as cited in study report): Solfuro di sodio lot.9456
- Substance type: technical product
- Physical state: solid
- Storage condition of test material: in tightly closed original container at room temperature

Results and discussion

pH value
pH value:
12.9
Temp.:
20 °C
Concentration:
10 g/L
Remarks on result:
other: temperature was room temperature

Applicant's summary and conclusion

Conclusions:
The pH value of a 1% solution of the test substance (Na2S, type ca. 60 %) at room temperature is 12.9.