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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10.09.2011 - 17.09.2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Justification for type of information:
Data is from experimental study report

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

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
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium iodide
EC Number:
231-679-3
EC Name:
Sodium iodide
Cas Number:
7681-82-5
Molecular formula:
INa
IUPAC Name:
sodium iodide
Test material form:
solid: crystalline
Details on test material:
- Name of test material (as cited in study report): Sodium iodide
- Substance type: Inorganic
- Physical state: Solid
- Formula : INa
- Molecular Weight : 149.89 g/mol

Results and discussion

pH value
Key result
pH value:
8.2
Temp.:
26 °C
Concentration:
1 vol%
Remarks on result:
other: Basic

Applicant's summary and conclusion

Conclusions:
1% by volume solution of test chemical was determined to exhibit a pH of 8.2 at 26 degC. Thus 1% by volume solution of test substance is basic in nature.
Executive summary:

1% by volume solution of test chemical was determined to exhibit a pH of 8.2 at 26 degC. Thus 1% by volume solution of test substance is basic in nature.