Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Already evaluated by the Competent Authorities for Biocides and Existing Substance Regulations.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2000

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7300 (Density / Relative Density / Bulk Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
GLP compliance:
yes
Type of method:
air comparison pycnometer (for solids)

Test material

Constituent 1
Chemical structure
Reference substance name:
Copper(II) carbonate--copper(II) hydroxide (1:1)
EC Number:
235-113-6
EC Name:
Copper(II) carbonate--copper(II) hydroxide (1:1)
Cas Number:
12069-69-1
Molecular formula:
CuCO3.Cu(OH)2
IUPAC Name:
cadmium
Details on test material:
Purity: Standard Grade
pH: 8.87 (1% (w/v) dispersed in distilled water)
Synthesis batch: 29308/2/RW
Stability: stable at room temperature

Results and discussion

Density
Type:
relative density
Density:
3.48
Temp.:
21.4 °C
Remarks on result:
other: Weight of test substance: 17.6911 g. Relative density obtained across 5 samples was in the range 3.4779 to 3.4829.

Applicant's summary and conclusion

Conclusions:
The relative density of basic copper carbonate was between 3.4779 — 3.4829 at 21.4 °C.
Executive summary:

Actual measurement temperature was 21°C and not 20°C, however, it is considered this makes no significant difference to the result as the change in density with temperature for most solids is negligible over a few degrees range. Therefore, any inaccuracy may be expected to be within overall experimental error.