Registration Dossier
Registration Dossier
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EC number: 231-968-4 | CAS number: 7782-89-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 22 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.22 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 2.2 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.22 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 160 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 9 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.9 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.45 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNECs considering lithium amide were deduced from the study with the most sensitive species available for each compartment / endpoint.
PNECs considering lithium hydroxide were deduced from the study with the most sensitive species available for each compartment / endpoint.
Lithium amide is completely hydrolysed by water:
LiNH2+ H2O (cold) → LiOH + NH3↑
Conclusion on classification
Based on the available data, lithium amide has not to be classified according to Regulation (EC) No 1272/2008 (CLP) criteria as the acute (LC50/ ErC50) values are > 1 mg/L.
The chronic NOEC value of the algae study is above 1 mg/L. The acute effect concentrations of fish, daphnia and algae are between 10 and 100 mg/L. Thus, lithium amide needs to be classified and labelled as aquatic chronic cat. 3 (H412, Harmful to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP).
Overview of results used for Classification and Labelling of lithium amide
Fish (Danio rerio), short-term, freshwater: LC50 = 45.0 mg/L
Daphnia magna, short-term, freshwater: EC50 = 22.0 mg/L
Algae (Desmodesmus subspicatus), long-term, freshwater: ErC50 = 43.0 mg/L
Algae (Desmodesmus subspicatus), long-term, freshwater: NOEC = 3.8 mg/L
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