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Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: OECD guideline No29
Principles of method if other than guideline:
The standard Operating Procedure for the transformation/dissolution of metals and sparingly soluble metal compounds. Canmet/lisec. February 2004
A new approach to the hazard classification of alloys based on Transformation/Dissolution . Setac 2008: Integrated Environmental Assessment and Management. Vol 4(1) pp75-93
Aquatic toxicity classification of Nickel Metal Powder. Comments on the Nickel Producers Environmental Research Association (NiPERA). Submitted by the European Nickel Industry Association (ENIA). March 30;2006.
Merag Fact Sheet 08: Classification for effects on the aquatic environment of metals/metal compounds and alloys. Januari 2007
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Test item name: cadmium telluride
Manufacturer: 5N Plus inc.
Batch number: CdTe-HPO-86098
ECTX-Consult N°: T0017/01
Test item characterisation
Active ingredient: cadmium, tellurium
Active ingredient content: na
Other ingredients: na
Purity: 99.999%
Formula: CdTe
Molecular weight: na
CAS-number: CdTe: 1306-25-8
EINECS-number: na
Physical form: powder
Colour: dark grey
pH: na
Density: na
Homogeneous: yes
Storage conditions: room temperature in the dark
Expiry date: stable over time
Safe Handling Precautions: na

Results and discussion

Any other information on results incl. tables

The acute (7d) Transformation/Dissolution Test on cadmium telluride in a standard aqueous medium at pH 6 and with a 10 mg/L loading showed an average dissolved cadmium concentration of 213 +- 13 μg/L Cd. This is about 5% of the total introduced cadmium as CdTe.

Applicant's summary and conclusion

Conclusions:
Tests were done according to standard protocol and considered of good quality.
Executive summary:

In this study, a loading of 10 mg/L of cadmium telluride (CdTe) was agitated at 100 rpm in a pH buffered aqueous medium at pH 6 for 7 days. The solutions were sampled at specific time intervals and the concentrations of dissolved cadmium in water were determined. In this study, a loading of 10 mg/L of cadmium telluride (CdTe) was agitated at 100 rpm in a pH buffered aqueous medium at pH 6 for 7 days. The solutions were sampled at specific time intervals and the concentrations of dissolved cadmium in water were determined.