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Short-term toxicity to aquatic invertebrates

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Description of key information

tests performed on an undiluted filtrate of a supersaturated dispersion of ZnS-SACHTOLITH HD-S, according to standard OECD protocol show no short-term toxicity of ZnS to invertebrates up to its solubility limit in test water.

Key value for chemical safety assessment

Additional information

Zinc sulfide is an insoluble material. Invertebrate tests, performed on an eluate of ZnS, and tested according to OECD Guideline for testing of Chemicals n° 202, show no toxicity of the ZnS for the invertebrates.

Copper content in GSS is highly low (about 100 ppm), and bonded to the structure of ZnS (Zn is partially substituted with Cu), and according to the water solubility test, there is no copper detected(less than 0.0251 mg/L at PH 8.9). So the effect of copper iron can be ignored.