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Oxidation reduction potential

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Reference
Endpoint:
oxidation reduction potential
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 to 19 November 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EPA OPPTS 830.6314 (Oxidation/Reduction: Chemical Incompatibility)
GLP compliance:
yes (incl. certificate)
Remarks:
Hess, Ministerium für Umwelt, Energie, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

At minute 0, minute 15, hour 1 and hour 24 no gas evolution (experiment series A) could be observed using ammonium dihydrogen phosphate, iron powder or 0.1N aqueous potassium permanganate solution.

The temperature of all test mixtures (series B) did not significantly vary in the course of the experiments and never exceeded ambient conditions, i.e. the temperature increase was below 5 °C.

The observed temperatures are listed in the following table.

 

Temperatures measured in the test mixtures (experiment series B)

 

Temperature ( °C ) series B

Time:

0 min

15 min

1 hour

24 hours

Ammonium dihydrogen phosphate

24.1

24.5

23.7

23.5

Room temperature

24.4

23.9

23.9

23.8

Iron powder

23.9

24.0

23.5

23.4

Room temperature

24.3

23.9

23.9

23.8

Potassium permanganate solution 0.1 N (0.02 mol/L)

24.7

24.3

24.0

23.7

Room temperature

24.2

23.8

23.9

23.7

Description of key information

The substance has no oxidation or reduction potentials, according to EPA OPPTS 830.6314.

Key value for chemical safety assessment

Additional information