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Physical & Chemical properties

Additional physico-chemical information

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Administrative data

Endpoint:
other: chemical and mineralogical characterization
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

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

Materials and methods

Principles of method if other than guideline:
Chemistry /elemental analysis was determined using ICP (inductively Coupled Plasma spectroscopy). Metal speciation/metal mineralogy was assessed from Sequential extraction/metal analysis and mineralogical analysis (XRD and microscopes equipped with EDS (Energy Dispersive Spectrometry) and WDS (Wavelength Dispersive Spectrometry) analysers. The interpretation of the overall results was performed by expert (with profound knowledge of metal particularities).
GLP compliance:
no
Remarks:
Equivalent quality assurance

Test material

Constituent 1
Reference substance name:
slag, copper smelting
EC Number:
266-968-3
Cas Number:
67711-92-6
IUPAC Name:
slag, copper smelting
Details on test material:
The following sample types were chosen as representative for the production processes depending on origin of raw material (primary or secondary) and slag cooling rate ( :rapd coolig /granulation or slow cooling)
Type I: Slag, Granules, Primary ( 09TT02641, 09TT02988, 09TT03512, 09TT05246)
Type II: Slag, Granules, Secondary (09TT02896, 09TT02897, 09TT03177, 09TT03821)
Type III: Slag, Slow cooled, primary( 09TT05245, 09TT03989)
Type IV: Slag, slow cooled, secondary (09TT03181)

12 samples representative for the slag types described above were colleced at different sites

Sampling and sample preparation was performed according to ECI/REACH C1 Sampling Protocol. The C1 sampling protocol also provides detailed information on the identity of the samples (see IUCLID section 1.4).

Results and discussion

Any other information on results incl. tables

Chemical composition of studied samples, Type I

Lab code

 

 

09TT02641

09TT02988

09TT03512

09TT05246

Sample

 

 

Slag

Slag

Slag

Slag

Sample type

 

 

I

I

I

I

 

 

 

 

 

 

 

Cu

P1

%

<0.010

< 0.004

<0.003

<0.005

 

P2

%

0.13

0.45

0.91

0.29

 

P3

%

0.40

0.47

0.04

0.40

 

P4

%

0.02

0.10

0.00

0.06

 

Sum

 

0.55

1.02

0.95

0.75

 

TOT

%

0.70

1.00

0.98

0.78

 

 

 

 

 

 

 

As

P1

%

<0.010

< 0.004

<0.003

<0.005

 

P2

%

<0.020

0.01

0.01

0.06

 

P3

%

<0.010

< 0.005

<0.003

0.01

 

P4

%

<0.004

0.02

0.00

0.01

 

Sum

 

0.00

0.02

0.01

0.07

 

TOT

%

<0.006

0.09

0.01

0.07

 

 

 

 

 

 

 

Fe

P1

%

<0.010

< 0.004

<0.003

<0.005

 

P2

%

28.60

27.70

10.30

33.00

 

P3

%

0.25

0.16

<0.003

0.13

 

P4

%

0.69

12.90

0.01

6.95

 

Sum

 

29.54

40.76

10.31

40.08

 

TOT

%

34.60

41.60

10.40

41.20

 

 

 

 

 

 

 

Ni

P1

%

<0.010

< 0.004

<0.003

<0.005

 

P2

%

<0.020

< 0.010

0.01

0.02

 

P3

%

<0.010

< 0.005

<0.003

0.01

 

P4

%

<0.004

< 0.002

0.00

0.01

 

Sum

 

0.00

0.00

0.01

0.04

 

TOT

%

0.03

0.00

0.01

0.04

 

 

 

 

 

 

 

Pb

P1

%

<0.010

< 0.004

<0.003

<0.005

 

P2

%

<0.020

0.03

0.09

0.07

 

P3

%

<0.010

0.01

0.32

0.02

 

P4

%

0.02

0.15

0.50

0.18

 

Sum

 

0.02

0.19

0.91

0.28

 

TOT

%

0.02

0.18

1.10

0.30

P1= H2O , P2= H2SO4, P3= KCN+Br-MeOH, P4= HNO3–soluble, TOT= total -, BM= bromine-methanol dissolutions, KEM= ion exchange chromatography, LECO = S/C analyzer, satmagan = Fe3O4analyzer Chemical composition of studied samples, Type I continued

Lab code

 

 

09TT02641

09TT02988

09TT03512

09TT05246

Sample

 

 

Slag

Slag

Slag

Slag

Sample type

 

 

I

I

I

I

 

 

 

 

 

 

 

Co

TOT

%

0.03

0.01

0.07

0.02

Sb

TOT

%

0.02

< 0.03

<0.01

0.02

Sn

TOT

%

0.13

0.01

<0.01

0.05

Zn

TOT

%

0.95

0.87

0.86

1.32

Mo

TOT

%

n.a.

0.17

n.a.

n.a.

Ag

TOT

%

<0.002

< 0.002

<0.002

<0.010

 

 

 

 

 

 

 

SiO2

KEM

%

37.90

29.20

39.3

31.80

Al2O3

TOT

%

4.83

5.19

11.70

2.91

Cr2O3

TOT

%

0.25

0.02

0.07

0.04

K2O

TOT

%

0.34

1.47

3.20

0.76

MgO

TOT

%

1.00

1.41

6.10

0.64

MnO

TOT

%

0.57

0.06

0.25

0.05

Na2O

TOT

%

0.74

0.48

0.78

0.40

CaO

TOT

%

2.00

1.84

21.90

2.98

 

 

 

 

 

 

 

S

Leco

%

0.51

0.05

0.04

0.66

SO42-

KEM

%

<0.025

< 0.02

0.02

<0.025

C

Leco

%

0.10

0.05

0.09

0.09

Satmagan

 

%

0.33

5.10

0.00

2.28

 

 

 

 

 

 

 

P1= H2O , P2= H2SO4, P3= KCN+Br-MeOH, P4= HNO3–soluble, TOT= total -, BM= bromine-methanol dissolutions, KEM= ion exchange chromatography, LECO = S/C analyzer, satmagan = Fe3O4analyzer

 

Applicant's summary and conclusion

Conclusions:
Good quality study that assessed full chemistry and mineralogy of typical copper slag samples. Proposed mineralogy (distribution pattern for each key element, i.e. % from total into the various mineralogical forms/species present into the UVCB) can be used for classification of the UVCB substance (mixture toxicity rules).
Executive summary:

The studied four primary granulated slag samples ( sample type I) contain 10.4- 41.6% iron, 29.2- 39.3% SiO2 , 0.7- 1% copper, 0.86-1.32% zinc, traces of other metals like Pb, As, Ni.. It consists mainly (93.5- 99.1%) of glass with accessory copper sulphides like bornite, covellite and chalcocite, metallic copper, magnetite and lead as metallic, oxidic and as galena.

Depending on the slag, the distribution of copper between different phases, mainly glass, copper sulfides and metallic copper, varies. Glass carries 25.7- 84% of slags total copper, copper sulfides from 1.7% to 39.6% and metallic copper 1.8% to 39%.

Zinc is mainly carried by glass and less by magnetite. In two slag samples, galena is the only carrier of lead, in one slag all lead occurs as metallic and in one sample lead occurs as metallic and oxidic as litharge –type minerals and also glass is lead –bearing.

Arsenic is completely included in glass phase. Nickel occurs in metallic or alloy form.

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