Reaction mass of potassium sodium (2R,3R)-2-hydroxy-3-(phosphonatooxy)butanedioate and potassium sodium (2S,3S)-2-hydroxy-3-(phosphonatooxy)butanedioate

pH

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

Test material information

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.