Registration Dossier

Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with Good laboratory Practice and internationally accepted guidelines.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.6 (Water Solubility)
GLP compliance:
yes
Type of method:
flask method

Test material

Constituent 1
Chemical structure
Reference substance name:
Dicopper chloride trihydroxide
EC Number:
215-572-9
EC Name:
Dicopper chloride trihydroxide
Cas Number:
1332-65-6
Molecular formula:
ClCu2H3O3
IUPAC Name:
dicopper(2+) chloride trihydroxide
Details on test material:
- Name of test material (as cited in study report): Copper oxychloride
- Test material purity: 57.39 % as Cu.
- Lot/batch No.: 27003B

Results and discussion

Water solubilityopen allclose all
Water solubility:
> 101 g/L
Temp.:
20 °C
pH:
3.1
Remarks on result:
other: As salt form.
Water solubility:
> 60.1 g/L
Temp.:
20 °C
pH:
3.1
Remarks on result:
other: As Cu.
Water solubility:
0.001 g/L
Temp.:
20 °C
pH:
6.5
Remarks on result:
other: As salt form.
Water solubility:
0.001 g/L
Temp.:
20 °C
pH:
6.5
Remarks on result:
other: As Cu.
Water solubility:
<= 0.001 g/L
Temp.:
20 °C
pH:
10.1
Remarks on result:
other: As salt form.
Water solubility:
<= 0 g/L
Temp.:
20 °C
pH:
10.1
Remarks on result:
other: As Cu.
Details on results:
Mean results at 20.0°C are displayed above. Mean measured pH values are also shown.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): other: Solubility varies with pH.
At pH 3.1, solubility of copper oxychloride was found to be >101 g/L as salt form and > 60.1 g/L as copper. At pH 6.5, solubility of copper oxychloride was found to be 1.19x10-3 g/L as salt form and 7.08x10-4 g/L as copper. At pH 10.1, solubility of copper oxychloride was found to be ≤5.25x10-4 g/L as salt form and ≤3.12x10-4 g/L as copper.