Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
16.9 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
25.7 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
1.69 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
228 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
439 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
43.9 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:
81.23 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Upon contact with water lithium nitrate hydrolyses and lithium and nitrate are formed. PNECs were derived from most sensitive species of each compartment/ endpoint and values for LiNO3 and lithium ion were shown.

Derivation of PNECs for LiNO3

 

For LiNO3 the PNECs derived for lithium were corrected as follows:

 

PNEC (LiNO3) = PNEC (Li) x (M(LiNO3) / (M(Li))

 

The molecular weight for LiNO3 is 68.95 g/mol.

The atomic weight for Li is ca. 6.94 g/mol, and should be multiplied where > 1 Li molecule is present.

 

PNEC (LiNO3) = PNEC (Li) x (68.95 / [1*6.94])

The updated PNECs for sediment and soil have not yet been integrated in the risk assessment calculation. An update of the CSR is planned for November 2020.

Conclusion on classification

Classification for lithium nitrate:

Based on the available data, lithium nitrate has not to be classified according to Regulation (EC) No 1272/2008 (CLP) criteria as the acute (LC50/ ErC50) and chronic toxicity (ECx/ NOEC) values are > 1 mg/L.

Overview of results used for Classification and Labelling:

Based on read-across

Fish, short-term, freshwater: LC50 = 257 mg/L (read-across from lithium chloride)

Fish, long-term, freshwater: NOEC = 28 mg/L (read-across from lithium hydroxide monohydrate)

Daphnia magna, short-term, freshwater: EC50 = 405 mg/L (read-across from lithium chloride)

Daphnia magna, long-term, freshwater: NOEC = 16.9 mg/L (read-across from lithium)

Algae (Pseudokirchneriella subcapitata), long-term, freshwater: ErC50 = 652 mg/L and NOEC 41 mg/L (read-across from lithium chloride)

Activated sludge: EC50 = 521 mg/L, EC10 = 228 mg/L (read-across from lithium hydroxide)