Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 244-842-9 | CAS number: 22205-45-4
Water solubility
Administrative data
- Endpoint:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
- Principles of method if other than guideline:
- The report aims to describe the 28 days Transformation/Dissolution (T/D) behavior of dicopper sulphide at pH 6. The results of T/D protocol can be used to compare with the existing eco-toxicity reference values to establish the aquatic hazard classification of the tested substances.
- Type of method:
- flask method
Test material
- Reference substance name:
- Dicopper sulphide
- EC Number:
- 244-842-9
- EC Name:
- Dicopper sulphide
- Cas Number:
- 22205-45-4
- Molecular formula:
- Cu2S
- IUPAC Name:
- Copper(I) sulphide
Constituent 1
Results and discussion
Solubility of metal ions in aqueous mediaopen allclose all
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 41.1 µg/L
- Element analysed:
- Copper
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH 6
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- 83.9 µg/L
- Element analysed:
- Copper
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 6
- Details on results:
- The solubility values as copper for 7 (Acute) and 28 days (Chronic) T/D tests are as follows:
7days mean: 41.1 µg/L (Coefficient of Variation 12%).
28 days mean: 83.9 µg/L (Coefficient of Variation 7%).
Any other information on results incl. tables
Detailed results obtained for the period 0 - 28 days are shown in attached Table 1 and Figure 1.
Applicant's summary and conclusion
- Conclusions:
- The mean solubility values as copper for 7 (Acute) and 28 days (Chronic) T/D tests were 41.1 µg/L an d 83.9 µg/L, respectively. This is equivalent to daily release rates of 2.37 and 2.09 µg/L.
- Executive summary:
A twenty-eight day chronic transformation/dissolution test was performed at pH 6 in OECD medium using 1 mg/L sample loading. Three replicate vessels were set up for the test material and one vessel for a
blank. Replicate samples vere taken in triplicte from each vessel at predeterined times and analysed for copper content.at the following pre-determined times: 0, 2, 6, 24, 48, 96, 168, 336, 504 and 672 hours.
The mean solubility value as copper for 7 days (Acute) was 41.1 µg/L. This is equivalent to a daily release rates of 2.37 µg/L.
The mean solubility value as copper for 28 days (Chronic) was 83.9 µg/L. This is equivalent to a daily release rate of 2.09 µg/L.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
