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Diss Factsheets

Physical & Chemical properties

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

Constituent 1
Reference substance name:
Lead, dross, bismuth-rich
EC Number:
273-792-0
EC Name:
Lead, dross, bismuth-rich
Cas Number:
69029-46-5
Molecular formula:
Molecular weigtht/formula concept not applicable to Inorganic UVCB (complex metal containing substance)
IUPAC Name:
Lead, dross, bismuth-rich

Results and discussion

Results:
The studies sample 09TT11160 contains 66.7% lead, 20.8% zinc, 11% silver and traces of other elements.
The studies sample 09TT11161 contains 72.7% lead, 16.3% zinc, 7.6% silver and traces of other elements.

The studied sample 09TT11160 consists mainly of metallic lead (68.5%) and silver zinc, AgZn3 (31%). Metallic lead occurs as coarse grains which are associated with silver zinc – alloys. Silver zinc –alloys occur also as matrix between metallic lead grains.
The studied sample 09TT11161 consists mainly of metallic lead (72.8%), silver zinc –alloy, AgZn3 (25.5%) and lead oxide (1%). Metallic lead occurs as coarse grains which are associated with silver zinc –alloys. Silver zinc –alloys occur also as matrix between metallic lead grains. Sometimes the rims of metallic lead are strongly oxidized.

Any other information on results incl. tables

Chemical and mineralogical composition of reference samples lead dross Bi rich.

ORC ref.

 

 

OR37

OR23

Sample

 

 

2000171/23

2000171/24

Lab code

 

 

00TT11160

09TT11161      

Substance

 

Lead dross bismuth rich

Lead dross bismuth rich

EINECS

 

 

273-792-0

273-792-0

Consortium reference No.

15

15

 

 

 

 

 

Ag

KEM

%

0.011

0.007

B

KEM

%

N/A

N/A

Bi

TOT

%

10.8

13.0

Cd

TOT

%

<0.003

<0.004

Co

TOT

%

<0.003

<0.004

Mo

TOT

%

<0.003

<0.004

Sb

TOT

%

0.031

0.452

Se

TOT

%

<0.003

<0.004

Sn

TOT

%

<0.003

0.008

Te

TOT

%

<0.018

<0.021

Zn

TOT

%

0.094

0.149

 

 

 

 

 

SiO2

KEM

%

0.25

0.267

Al2O3

TOT

%

0.035

0.042

CaO

TOT

%

1.57

6.03

Cr2O3

TOT

%

<0.005

<0.006

K2O

TOT

%

<0.105

<0.127

MgO

TOT

%

2.57

9.03

MnO

TOT

%

<0.004

0.017

Na2O

TOT

%

0.026

13.5

(SO4)2

KEM

%

<0.016

<0.026

 

 

 

 

 

S

LECO

%

<0.01

0.49

C

LECO

%

0.02

0.04

 

 

 

 

 

Satmagan

 

%

0

0

Lab code

 

09TT11160

Mineral composition

 

%

Lead 

Pb

83.98

BiMgCaF-oxide

BiMgCaFO

14.02

Lead calcium

PbCa

1.76

Lead oxide

PbO

0.24

Total

 

100

 

 

 

Distribution of lead, -%

 

 

Lead 

 

97.83

Lead calcium

 

1.91

Lead oxide

 

0.26

 

 

 

Distribution of calcium, -%

 

 

BiMgCaF-oxide

 

89.58

Lead calcium

 

10.42

 

 

 

Distribution of bismuth, -%

 

 

Bismuth oxide

 

100.00

Lab code

 

09TT11161

Mineral composition

 

%

Bismuth oxides (Na & Pb –bearing)

Bi(Na,Pb)O

57.57

MgPbCa-oxide

Mg(Pb,Ca)O

26.22

Lead

Pb

10.85

Bismuth & Bismuth oxide (pure)

Bi & BiO

2.08

Sodium hydroxides (pure)

NaOH

1.76

Lead silicate

PbSi2O6

1.06

Lead oxide

PbO

0.47

Total

 

100

 

 

 

Distribution of lead, -%

 

 

Bismuth oxides (Na & Pb –bearing)

 

62.29

Lead

 

25.70

MgPbCa-oxide

 

10.28

Lead oxide

 

0.99

Lead silicate

 

0.63

Bismuth & Bismuth oxide

 

0.03

Sodium hydroxides (pure)

 

0.07

 

 

 

Distribution of bismuth, -%

 

 

Bismuth oxides (Na & Pb –bearing)

 

86.98

Bismuth & Bismuth oxide

 

13.02

 

 

 

Distribution of sodium, -%

 

 

Bismuth oxides (Na & Pb –bearing)

 

74.22

Magnesium hydroxides (Pb & Ca -bearing)

 

16.43

Sodium hydroxides (pure)

 

8.61

Lead silicate

 

0.56

Bismuth & Bismuth oxide

 

0.16

Lead oxide

 

0.03

ORC ref.

 

 

OR37

OR23

 

Sample

 

 

2000171/23

2000171/24

 

Lab code

 

 

00TT11161

09TT11160      

 

Substance

 

Lead dross bismuth rich

Lead dross bismuth rich

 

EINECS

 

 

273-792-

273-792-0

 

Consortium reference No.

15

15

 

 

 

 

 

 

 

As

P1

%

<0.007

<0.008

 

 

P2

%

<0.017

<0.019

 

 

P3

%

<0.008

<0.009

 

 

P4

%

<0.003

<0.004

 

 

PSUM

%

<0.017

<0.019

 

 

TOT

%

<0.003

<0.011

 

 

 

 

 

 

 

Cu

P1

%

<0.007

<0.008

 

 

P2

%

<0.017

<0.019

 

 

P3

%

<0.008

<0.009

 

 

P4

%

<0.003

<0.004

 

 

PSUM

%

<0.017

<0.019

 

 

TOT

%

<0.003

0.039

 

 

 

 

 

 

 

Fe

P1

%

<0.007

<0.008

 

 

P2

%

<0.017

0.045

 

 

P3

%

<0.008

<0.009

 

 

P4

%

<0.003

0.008

 

 

PSUM

%

<0.017

0.053

 

 

TOT

%

<0.003

0.084

 

 

 

 

 

 

 

Ni

P1

%

<0.007

<0.008

 

 

P2

%

<0.017

<0.019

 

 

P3

%

<0.008

<0.009

 

 

P4

%

<0.003

<0.004

 

 

PSUM

%

<0.017

<0.019

 

 

TOT

%

<0.003

<0.004

 

 

 

 

 

 

 

Pb

P1

%

<0.007

0.672

 

 

P2

%

0.216

0.42

 

 

P3

%

0.208

1.11

 

 

P4

%

49.20

37.20

 

 

PSUM

%

83.40

39.40

 

 

TOT

%

83.40

38.7

 

Applicant's summary and conclusion

Conclusions:
Good quality study that assessed full chemistry and mineralogy of two representative samples of lead dross bismuth 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 bismuth rich samples (mixture toxicity rules).
Executive summary:

The studied sample 09TT11160 consists mainly of metallic lead (68.5%) and silver zinc, AgZn3 (31%). Metallic lead occurs as coarse grains which are associated with silver zinc – alloys. Silver zinc –alloys occur also as matrix between metallic lead grains. The studied sample 09TT11161 consists mainly of metallic lead (72.8%), silver zinc –alloy, AgZn3 (25.5%) and lead oxide (1%). Metallic lead occurs as coarse grains which are associated with silver zinc –alloys. Silver zinc –alloys occur also as matrix between metallic lead grains. Sometimes the rims of metallic lead are strongly oxidized.

The mineralogy of the reference samples can be used to derive the classification of the sample but also to predict the mineralogy of other lead dross bismuth rich 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).