Anode, copper

Additional physico-chemical information

Administrative data

Endpoint:

other: representative mineralogy

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

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:

but equivalent Quality Assurance

Test material

Test material information

Constituent 1

Reference substance name:

Anode copper

IUPAC Name:

Anode copper

Details on test material:

Several sampes were assessed. Sample collection made according Standards REACH Copper Consortium protocol (see iuclid 1.4).

Results and discussion

Any other information on results incl. tables

Table: Chemical composition of studied sample

Lab code			09TT02775	09TT05249					09TT02775	09TT05249
Sample			B1	B1					B1	B1
Cu	P1	%	<0.004	0.01		Co	TOT	%	<0.002	<0.004
	P2	%	0.62	1.59		Sb	TOT	%	0.30	0.01
	P3	%	3.36	7.02		Sn	TOT	%	<0.005	0.01
	P4	%	85.30	88.10		Zn	TOT	%	0.00	<0.004
	Sum		89.28	96.72		Ag	TOT	%	4.10	0.06
	TOT	%	91.60	98.80		Se	TOT	%	0.27	n.a.
						Te	TOT	%	0.28	n.a.
As	P1	%	<0.004	<0.005
	P2	%	0.02	<0.010		SiO2	KEM	%	0.06	0.02
	P3	%	0.02	0.01		Al2O3	TOT	%	<0.004	<0.001
	P4	%	0.25	0.07		Cr2O3	TOT	%	<0.003	<0.001
	Sum		0.30	0.07		K2O	TOT	%	<0.06	<0.001
	TOT	%	0.30	0.08		MgO	TOT	%	0.01	<0.001
						MnO	TOT	%	<0.003	<0.001
Fe	P1	%	<0.004	<0.005		Na2O	TOT	%	<0.03	0.02
	P2	%	0.01	0.01		CaO	TOT	%	n.a.	<0.001
	P3	%	<0.005	<0.005		S	Leco	%	<0.01	0.03
	P4	%	<0.002	0.01		C	Leco	%	0.01	0.04
	Sum		0.01	0.02		Satmagan		%	n.a.	<0.1
	TOT	%	0.01	0.01
Ni	P1	%	<0.004	<0.005
	P2	%	<0.01	<0.010
	P3	%	<0.005	0.01
	P4	%	0.52	0.25
	Sum		0.52	0.26
	TOT	%	0.55	0.27
Pb	P1	%	<0.004	<0.005
	P2	%	0.05	<0.010
	P3	%	<0.005	<0.005
	P4	%	0.60	0.07
	Sum		0.65	0.07
	TOT	%	0.71	0.09

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

Table: Mineral composition and distribution of copper

Sample		09TT02775				09TT05249
Type		Blister
Mineral composition		B1				B1
Cu	Copper	93.86		Cu	Copper	97.25
AgSb	AgSb -alloy	3.21		Cu2O	Cuprite	1.79
PbSbOx	Lead oxide	1.45		FeNiSn	Fe -alloy	0.79
AgAs	Novakite	0.94		PbAsO	Paulmooreite	0.51
CuO	Tenorite	0.72
Total		100.18		Total		100.34
Distribution of copper
Cu		99.32		Cu		98.39
CuO		0.68		Cu2O		1.61
Distribution of iron
AgAs		100.00		FeNiSn		100.00
Distribution of arsenic
				PbAsO		100.00
Distribution of nickel
Cu		99.36
CuO		0.64
Distribution of silver
AgSb		57.38
Cu		30.06
AgAS		10.89
PbSbOx		1.63
CuO		0.04
Distribution of lead
PbSbOx		100.00		PbAsO		100.00

Applicant's summary and conclusion

Conclusions:

Good quality study that assessed full chemistry and mineralogy of a representative anode copper. 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 ten (10) "primary and secondary anode samples" contain 88.950- 99.779% copper, 20- 77500 ppm nickel, 150- 11200 ppm tin, 25- 9400 ppm lead, 110- 6990 ppm antimony, 40- 2640 ppm sulphur, 145- 2200 ppm silver and 290- 1660 ppm arsenic. Other elements detected include selenium, zinc, bismuth, iron, cadmium, tellurium, cobalt, chromium and oxygen.

The mineralogy of the two studied copper anodes consist mainly of copper 95.3% and 99.5% with accessory alloys, sulphides and oxides.

- Sample 09TT03187 contains as accessory phases 1,4% nickel- antimony- tin –alloys, 1.3% chalcocite, and 1% cassiterite and

- Sample 09TT03484 trace amounts (<0.3%) of lead-, antimony and copper oxides

 

The studied two (2) "primary and secondary blister copper samples" contain 91.6 and 98.8% copper, 0.27 and 0.52% nickel, 0.09 and 0.7% lead, and 0.06 and 4.1% silver. Both of the samples consist mainly of metallic copper.

- Sample 09TT02775 consist of 93.9% copper, 3.2% silver- antimony –alloys, 1.5% lead- antimony –oxides and accessory novakite – type silver arsenide and tenorite.

- Sample 09TT05249 consist 97.3% copper, 1.8% cuprite, and accessory iron alloy and paulmooreite – type lead- arsenic oxide.

The full study report is attached in the section 1.4