Flue dust, copper-refining

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

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)

Principles of method if other than guideline:

The particle size of the samples is determined by sieving.

GLP compliance:

no

Remarks:

other quality assurance

Type of method:

sieving

Type of distribution:

counted distribution

Test material

Test material information

Constituent 1

Reference substance name:

Flue dust, copper-refining

EC Number:

266-966-2

EC Name:

Flue dust, copper-refining

Cas Number:

67711-90-4

IUPAC Name:

flue dust, copper refining

Details on test material:

Sample collection made according to ECI/REACH Copper Consortium Standards Protocols (see IUCLID section 1.4)
The studied flue dust samples are fine- grained, the D50 value is for all samples below 20µm. They contain 9.18- 51.0% lead, 0.52- 9.58% copper, 6.3- 43.9% zinc, 0.09- 2.8% arsenic, and 1.15- 14.7% sulfur (see iuclid 4.23)
B11 flue dust from Secondary smelters (representative), sample code: MC_B11_522_xxx_0904, lab code: 09TT03192
B11 flue dust from primary smelter (blast furnace) (dried filtered slime, homogenized), sample code: KGHM_B11_006_0904, lab code: 09TT03514
B11 flue dust from primary smelter (electric furnace) (composite, from one silo), sample code: KGHM_B11_005_0904, lab code: 09TT03513

Results and discussion

Particle size

Percentile:

D50

Mean:

-0.02 mm

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

Table4: Particle size distribution

Sample		09TT03192		09TT03513		09TT03514
Size		Retained		Retained		Retained
mesh	mm	g	%	g	%	g	%
	5.000
6	3.360
8	2.380					33.91	15.60
16	1.190					14.92	6.86
20	0.841					10.33	4.75
30	0.595					2.83	1.30
40	0.420					3.61	1.66
50	0.297					5.5	2.53
140	0.106					16.4	7.54
200	0.075			0.39	0.35
325	0.045	0.92	1.24	1.31	1.17	7.81	3.59
	0.020	0.44	0.59	1.51	1.35	13.13	6.04
	-0.020	73.00	98.17	108.93	97.14	108.93	50.11
Sum		74.36	100.00	112.14	100	217.37	100

Applicant's summary and conclusion

Conclusions:

Good quality data that show that representative samples for the UVCB flue dust are mainly present in powder forms

Executive summary:

Major fraction of the materials is smaller than 20µm (inhalable fraction). This has to be taken into account for classification.