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Physical & Chemical properties

Water solubility

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Administrative data

Endpoint:
water solubility
Type of information:
experimental study
Adequacy of study:
key study
Study period:
March 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study performed according to 24-hour transformation/dissolution test described in UN (2009).

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report date:
2010

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: United Nations. 2009. Globally Harmonized System of Classification and Labelling of Chemicals, Third revised edition, ST/SG/AC.10/30/Rev.3. United Nations, New York and Geneva http://www.unece.org/trans/danger/publi/ghs/ghs_rev03/03files_e.html
Qualifier:
according to guideline
Guideline:
other: OECD. 2001. OECD Series on Testing and Assessment. Draft Guidance Document on Transformation/Dissolution Metals and Metal Compounds in Aqueous Media. Number 29. ENV/JM/MONO(2001)9. OECD, 75775 Paris Cedex 16. http://www.olis.oecd.org/olis/2001doc.nsf/Link
GLP compliance:
not specified
Type of method:
other: 24-hour transformation/dissolution test according to UN (2009) using testing media specified in OECD (2001)

Test material

Constituent 1
Reference substance name:
nickel (II) oxalate dihydrate
IUPAC Name:
nickel (II) oxalate dihydrate
Constituent 2
Reference substance name:
6018-94-6
Cas Number:
6018-94-6
IUPAC Name:
6018-94-6
Details on test material:
- Name of test material (as cited in study report): nickel oxalate dihydrate
- Molecular formula (if other than submission substance): NiC2O4.2H2O
- Molecular weight (if other than submission substance): 182.7 g/mol
- Structural formula attached as image file (if other than submission substance): see Figure 1
- Physical state: no data
- Analytical purity: no data
- Lot/batch No.: no data
- Stability under test conditions: no data
- Storage condition of test material: no data

Results and discussion

Water solubility
Water solubility:
475 µg/L
pH:
6
Remarks on result:
other: 24-hour test at 100 mg/L loading of nickel oxalate dihydrate
Details on results:
- The net change in total dissolved Ni over the 24-hour test period was 475 μg/L (σ= 16 μg/L; σ% = 3). This value corresponds to a dissolution level of about about 1.5% of the Ni in nickel oxalate dihydrate.

Applicant's summary and conclusion

Conclusions:
Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
After a 24-hour agitation in the testing media, a dissolved Ni concentration of 475 μg/L from the 100 mg/L loading of nickel oxalate dihydrate was found in solution, corresponding to a dissolution level of about 1.5% of the Ni in nickel oxalate dihydrate. This result can be interpreted as slightly soluble in water.

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