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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 October 2008 - January 2009
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 105 (Water Solubility)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
Spinel (Mg(AlO2)2)
EC Number:
215-105-9
EC Name:
Spinel (Mg(AlO2)2)
Cas Number:
1302-67-6
Molecular formula:
AlO2.1/2Mg
IUPAC Name:
magnesium dialuminium oxide

Results and discussion

Water solubility
Water solubility:
0.01 mg/L
Temp.:
20 °C
pH:
> 6.1 - < 7.1
Details on results:
The main test was performed with two different loading rates (i.e. 100 and 1000 mg/L) only at 20 degree C, according to the guidelines.
The "water solubility of test substance equivalents", calculated from the Al-concentration, is therefore 0.0097 mg/L (loading rate 100 mg/L) respectively 0,037 mg/L (loading rate 1000 mg/L).
The "water solubility of test substance equivalents", calculated from the Mg-concentration, is therefore 0.23 mg/L (loading rate 100 mg/L) respectively 1.1 mg/L (loading rate 1000 mg/L).
The lowest calculated "water solubility of test substance equivalents" is 0.01 mg/L, which represents therefore the highest possible water solubility of the undissociated test substance.
The water solubility of the test substance depends on the loadingt rate and the elements aluminium and magnesium dissolve independently in water.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
The test substance spinel is insoluble in water.
Executive summary:

The main test was performed with two different loading rates (i.e. 100 and 1000 mg/L) only at 20 degree C, according to the guidelines. The "water solubility of test substance equivalents", calculated from the Al-concentration, is therefore 0.0097 mg/L (loading rate 100 mg/L) respectively 0,037 mg/L (loading rate 1000 mg/L). The "water solubility of test substance equivalents", calculated from the Mg-concentration, is therefore 0.23 mg/L (loading rate 100 mg/L) respectively 1.1 mg/L (loading rate 1000 mg/L). The lowest calculated "water solubility of test substance equivalents" is 0.01 mg/L, which represents therefore the highest possible water solubility of the undissociated test substance. The water solubility of the test substance depends on the loadingt rate and the elements aluminium and magnesium dissolve independently in water.