Lithium nickel potassium oxide

Water solubility

Link to relevant study record(s)

Reference

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

key study

Study period:

May to October 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.6 (Water Solubility)

Deviations:

no

GLP compliance:

yes

Type of method:

flask method

Key result

Water solubility:

< 0 g/L

Conc. based on:

test mat. (dissolved fraction)

Temp.:

20 °C

pH:

>= 7.6 - <= 7.8

Details on results:

Since samples indicated a detector response less than the 1.0 x 10-3 mg/L standard solution, a limit value for the sample solutions was calculated based on that concentration, and then correcting for the sample dilution factor of 1.02 and the nominal nickel content of the test item (60% w/w).

Conclusions:

The water solubility of the test item has been determined to be less than 1.7 x 10-6 g/L (0.0000017 g/L) of solution at 20.0 ± 0.5 °C.

Executive summary:

On completion of the equilibration period, the samples were clear and colorless with excess test item present at the bottom of the test vessels; the sample blanks were clear, colorless solutions. The solutions were decanted, avoiding excess test item prior to filtration. After centrifugation, each supernatant was taken for analysis. Each supernatant was visually observed to be clear, colorless and free from un-dissolved test item.The water solubility of the test item has been determined to be less than 1.7 x 10-6 g/L(0.0000017 g/L) of solution at 20.0 ± 0.5 °C.

Description of key information

The water solubility of the test item has been determined to be less than 1.7 x 10-6 g/L (0.0000017 g/L) of solution at 20.0 ± 0.5 °C.