Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given (comparable to guidelines/standards)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Principles of method if other than guideline:
Instrument: pH-meter Portamess 911 pH
GLP compliance:
no

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): Potassium sodium 2-hydroxy-3-(phosphonatooxy)butanedioate
- Abbreviation: K3NaPWS
- Sample no.: 10-2065

Results and discussion

pH value
pH value:
9.2 - 9.54
Concentration:
0.1 - 5 other: %

Any other information on results incl. tables

Assumed to be performed at ambient temperature (ca. 20 °C).

pH dependence on concentration:

c[%]

0.1

0.2

0.5

1

2

5

pH

9.51

9.54

9.51

9.45

9.34

9.20

The pH of the sample is almost independent from the used concentration.

Applicant's summary and conclusion