Lead, dross, antimony-rich

Additional physico-chemical information

Administrative data

Endpoint:

other: representative mineralogy

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: non GLP but other quality assurance

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:

other quality assurance

Test material

Test material information

Constituent 1

Reference substance name:

Lead, dross, antimony-rich

EC Number:

273-791-5

EC Name:

Lead, dross, antimony-rich

Cas Number:

69029-45-4

Molecular formula:

Molecular weight/formula concept not applicable to Inorganic UVCB (comlex metal containing substance)

IUPAC Name:

Lead, dross, antimony-rich

Results and discussion

Results:

The studied antimony rich lead dross sample 09TT07598 contains 58.4% lead, 27.7% antimony, 0.6% arsenic and traces of other elements.
The studied antimony rich lead dross sample 09TT11170 contains 52% lead, 29.4% antimony, 1.4% tin, 0.7% zinc, 0.2% arsenic and traces of other elements.
The studied antimony rich lead dross sample 09TT07601 contains 73.4% lead, 13.4% antimony, 0.9% CaO, 0.6% tin and traces of other elements.

The studied antimony rich lead dross sample 09TT07598 consists mainly of lead antimony oxides (85.35%), metallic lead (8.65%) and antimony arsenic oxide and arsenic oxides (total 2.1%).
The studied antimony rich lead dross sample 09TT11170 consists mainly of lead antimony oxides (92.3%), metallic lead (5.7%).
The studied antimony rich lead dross sample 09TT07601 consists mainly of lead oxides (50.8%), lead antimony oxides (32.9%), lead antimony tin oxides (9%) and antimony lead calcium oxides (7%).

Any other information on results incl. tables

Table 1 Chemical compositions of studied samples.

 

ORC ref.			OR08	OR36	OR02
Sample			2000171/4	2000171/32	2000171/1
Lab code			09TT07598	09TT11170	00TT07601
Substance			Lead dross antimony rich	Lead dross antimony rich	Lead dross antimony rich
EINECS			273-791-5	273-791-5	273-791-5
Consortium reference No.			12	12	12
As	P1	%	<0.008	0.008	<0.008
	P2	%	0.402	0.082	0.031
	P3	%	<0.010	< 0.012	<0.010
	P4	%	0.068	0.031	0.018
	PSUM	%	0.47	0.12	0.049
	TOT	%	0.623	0.21	0.158
Cu	P1	%	<0.008	< 0.004	<0.008
	P2	%	<0.020	< 0.01	<0.020
	P3	%	<0.010	0.012	<0.010
	P4	%	0.007	0.021	0.007
	PSUM	%	0.007	0.033	0.007
	TOT	%	0.011	0.038	0.021
Fe	P1	%	<0.008	< 0.004	<0.008
	P2	%	<0.020	< 0.01	<0.020
	P3	%	<0.010	< 0.005	<0.010
	P4	%	0.011	0.003	0.007
	PSUM	%	0.011	0.003	0.007
	TOT	%	0.027	0.16	0.01
Ni	P1	%	<0.008	< 0.004	<0.008
	P2	%	<0.020	< 0.01	<0.008
	P3	%	<0.010	< 0.005	<0.010
	P4	%	<0.004	0.004	<0.004
	PSUM	%	<0.004	0.004	<0.004
	TOT	%	<0.004	< 0.010	<0.004
Pb	P1	%	0.217	0.01	0.031
	P2	%	0.447	0.19	0.242
	P3	%	1.43	0.50	1.50
	P4	%	53.80	39.00	61.60
	PSUM	%	55.89	39.70	63.37
	TOT	%	58.40	52.00	73.40

ORC ref.			OR08	OR36	OR02
Sample			2000171/4	2000171/32	2000171/1
Lab code			09TT07598	09TT11170	00TT07601
Substance			Lead dross antimony rich	Lead dross antimony rich	Lead dross antimony rich
EINECS			273-791-5	273-791-5	273-791-5
Consortium reference No.			12	12	12
Ag	KEM	%	<0.002	0.006	<0.002
B	KEM	%	N/A	N/A	N/A
Bi	TOT	%	<0.010	<0.020	<0.010
Cd	TOT	%	<0.004	0.008	<0.004
Co	TOT	%	<0.004	< 0.002	<0.004
Mo	TOT	%	<0.004	< 0.002	<0.004
Sb	TOT	%	27.7	29.40	13.4
Se	TOT	%	<0.004	< 0.002	<0.004
Sn	TOT	%	0.036	1.370	0.587
Te	TOT	%	<0.019	<0.010	<0.019
Zn	TOT	%	<0.004	0.73	<0.004
SiO2	KEM	%	0.068	0.08	0.07
Al2O3	TOT	%	<0.004	0.006	<0.007
CaO	TOT	%	0.004	0.016	0.935
Cr2O3	TOT	%	<0.004	0.01	<0.006
K2O	TOT	%	0.098	< 0.05	0.117
MgO	TOT	%	<0.004	0.023	0.011
MnO	TOT	%	<0.004	0.002	<0.006
Na2O	TOT	%	0.021	0.054	0.246
(SO4)2	KEM	%	0.023		0.115
S	LECO	%	0.06	0.04	0.07
C	LECO	%	0.03	0.03	0.12
Satmagan		%	0	0	0

Tabel 2  Mineral composition and distribution of main elements of OR08 lead dross antimony rich sample.

Sample		09TT07598
Type		Lead dross, Sb-rich
Mineral composition		%
Lead antimony (arsenic) oxide	Pb5(Sb,As)4O11	85.35
Lead	Pb	8.65
Antimony arsenic oxide & arsenic oxide	(Sb,As)2O3& As2O4	2.14
Lead oxide	PbO	0.46
Quartz	SiO2	0.07
Total		96.67
Distribution of lead, -%
Lead antimony (arsenic) oxide		84.43
Lead		14.81
Lead oxide		0.77
Distribution of antimony, -%
Lead antimony (arsenic) oxide		95.63
Antimony arsenic oxide & arsenic oxide		4.37
Lead oxide		0.01
Distribution of arsenic, -%
Antimony arsenic oxide & arsenic oxide		59.32
Lead antimony (arsenic) oxide		40.68

 

Table 3 Mineral composition and distribution of main elements of OR36 lead dross antimony rich sample.

Lab code			09TT11170
Mineral composition			%
PbSb -oxide		Pb2Sb2O7	92.30
Metallic lead		Pb	5.72
CuNiSbAsSn -alloy		CuNiSbAsSn	1.54
Lead oxide		PbO2	0.22
SbPb -silicate		SbPbSiO	0.20
Chalcocite		CuS	0.02
Total			100.00
Distribution of lead, -%
PbSb -oxide			89.51
Metallic lead			10.06
Lead oxide			0.37
SbPb -silicate			0.07
Distribution of antimony, -%
PbSb -oxide			98.93
CuNiSbAsSn -alloy			0.79
SbPb -silicate			0.24
Metallic lead			0.04
Distribution of copper, -%
CuNiSbAsSn -alloy			96.44
SbPb -silicate			1.85
Chalcocite			1.70
Distribution of tin, -%
CuNiSbAsSn -alloy			100.00

Table 4 Mineral composition and distribution of main elements of OR02 lead dross antimony rich sample.

Lab code		09TT07601
Mineral composition		%
Massicot / Litharge	PbO	50.83
Lead antimony oxides	Pb1-4Sb2O4-7	32.88
Lead antimony tin oxides	PbSbSnO	9.00
Antimony lead calcium oxides	SbPbCaO	7.03
Lead	Pb	0.13
Lead copper oxide	PbCuO	0.13
Total		100.00
Distribution of lead, -%
Massicot / Litharge		63.25
Lead antimony oxides		25.30
Lead antimony tin oxides		7.40
Antimony lead calcium oxides		3.69
Lead		0.20
Lead copper oxide		0.14
Distribution of antimony, -%
Lead antimony oxides		58.59
Antimony lead calcium oxides		22.10
Lead antimony tin oxides		18.08
Massicot / Litharge		1.23

 

Applicant's summary and conclusion

Conclusions:

Good quality study that assessed full chemistry and mineralogy of two representative samples of lead dross antimony rich. The mineralogy (and the distribution pattern for each key element, i.e. % from Total into the various mineralogical forms/species present into the UVCB) of the reference samples can be used to derive the classification of lead dross antimony rich samples (mixture toxicity rules).

Executive summary:

The studied antimony rich lead dross sample 09TT07598 consists mainly of lead antimony oxides (85.35%), metallic lead (8.65%) and antimony arsenic oxide and arsenic oxides (total 2.1%). The studied antimony rich lead dross sample 09TT11170 consists mainly of lead antimony oxides (92.3%), metallic lead (5.7%). The studied antimony rich lead dross sample 09TT07601 consists mainly of lead oxides (50.8%), lead antimony oxides (32.9%), lead antimony tin oxides (9%) and antimony lead calcium oxides (7%).

The mineralogy of the reference samples can be used to derive the classification of the samples but also to predict the mineralogy of other lead dross antimony samples. The calculator sheet, which is used to derive the classification and which reflects particular assumptions that are made, can be found in attachment above (attached background material).