Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No GLP study but other quality assurance
Cross-reference
Reason / purpose for cross-reference:
reference to other study

Data source

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

Materials and methods

Principles of method if other than guideline:
The granulometry, i.e. particle size, of the samples are determined by sieving. Sieving is a method where material is separated to finer and rougher sections determined by sieve size. Material is fed on the sieve and then the motion energy between the sieve and the material causes finer material to go through the sieve. The motion can be done efficiently by using ultrasonic washing device. The sieve with material is drowned to washing device and then lifts slowly up. The sieve is kept in the motion so that material is rotating on the sieve. Lifting up and ultrasonic washing produce an absorbing effect that makes finer material go through the sieve more efficiently. After sieving finer material goes on the top of the next and finer sieve and its sieved again. This continues until the finest material is separated. Residuals separated by sieving are filtered with suction, then dried and weighed. Weighed residuals are reported and the particle size distribution is calculated. The sieves used in sieving are classified ASTM’s sieves and the grain sizes are from 0,020mm to 3,36mm. The ultrasonic washing is done with Finnsonic M40i.
GLP compliance:
no
Remarks:
other quality assurance
Type of distribution:
counted distribution

Test material

Constituent 1
Reference substance name:
Slimes and Sludges, copper electrolytic
EC Number:
266-972-5
EC Name:
Slimes and Sludges, copper electrolytic
Cas Number:
67711-95-9
Molecular formula:
Not applicable
IUPAC Name:
slimes and sludges, copper electrolytic
Details on test material:
Test material was dried before sending to test labs. Sampling of representative samples was made according to Sampling protocol of the REACH Copper Consortium (iuclid 1.4 attachment).
B6 anodic slime from primary smelter (site 1a, not decopperized) (representative, dried, homogenized) lab code: 09TT03746
B6 anodic slime from primary smelter (site 1b, decopperized) (representative, dried, homogenized) lab code: 09TT03745
B6 anodic slime, site 2A lab code: 09TT06661
B6 anodic slime, site 2B lab code: 09TT06662

Results and discussion

Particle size
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Any other information on results incl. tables

 

Table 4: Particle size distribution

Sample

 

09TT03745

 

09TT03746

 

09TT06661

 

09TT06662

 

Size

 

Retained

 

Retained

 

Retained

 

Retained

 

mesh

 mm

g

%

g

%

g

%

g

 

8

2.380

 

 

1.74

2.67

 

 

 

 

16

1.190

0.08

0.18

14.75

22.63

 

 

 

 

20

0.841

0.05

0.11

5.85

8.98

 

 

 

 

30

0.595

0.05

0.11

5.43

8.33

 

 

 

 

40

0.420

0.3

0.68

3.18

4.88

 

 

 

 

50

0.297

0.58

1.31

2.35

3.61

 

 

 

 

140

0.106

1.06

2.40

6.12

9.39

0.17

0.13

0.37

0.31

200

0.075

0.22

0.50

1.59

2.44

0.76

0.59

0.52

0.44

325

0.045

0.49

1.11

2.89

4.43

2.73

2.12

1.97

1.66

 

0.020

0.19

0.43

4.08

6.26

4.21

3.26

4.80

4.03

 

-0.020

41.1

93.16

17.2

26.39

121.19

93.90

111.34

93.56

Sum

 

44.12

100

65.18

100

129.06

100

119.00

100

 

Applicant's summary and conclusion

Conclusions:
good quality study on representative copper slimes demonstrating that, in dried fractions of the slimes, large parts of the material is inhalable, respirable fraction (below 20µm) could achieve >90%. Tested material was dried before testing.