Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.018 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.021 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.018 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
12.5 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral

Additional information

No studies about Samarium chloride were available, but studies about analogue compounds as listed in the following.

Conclusion on classification

Degradation

Biodegradation:not applicable

Dissoziation: rapide partitioning

Hydrolysis: salt hydrolysis tends to increase with increasing pH:at pH < 3 it dissociates completely, at pH > 3 salt hydrolysis can occur and at pH > 9 only Lanthanum hydroxide exists.

Oxidation/reduction: stable oxidation state

 

Bioaccumulation

Bioaccumulation is to be expected

 

Aquatic acute toxicity

For aquatic invertebrates:

EC50(48 h), Daphnia carinata: 2.083 mg/L

 

Aquatic chronic toxicity

For aquatic invertebrates:

NOEC(21 d), Daphnia magna: 0.176 mg/L

 

Based on the data above, Lanthanum chloride is considered to be rapidly partitioned and indicate a high potential of bioaccumulation.

 

Classification and labelling according to Regulation (EC) No.1272/2008 (CLP) and Regulation (EU) No. 286/2011 (2ndATP):

The acute classification follows from acute aquatic toxicity showing effects> 1 mg/L in fish, aquatic invertebrate and algae. Therefore, Lanthanum chloride is not classified for acute (short-term) aquatic hazard.

The chronic classification is based from chronic aquatic toxicity showing effects between 0.1 and 1 mg/L in aquatic invertebrates and indicating rapide partitioning and indicating a high potential for bioaccumulation.

Therefore, Lanthanum chloride is classified for chronic (long-term) aquatic hazard with Category Chronic 2.

M-factor for acute aquatic toxicity: not need to be assigned

M-factor for chronic aquatic toxicity: not need to be assigned

 

Classification and labelling according to Regulation 67/548/EEC (self classification):

The acute classification follows from acute aquatic toxicity > 1 to ≤ 10 mg/L foraquatic invertebrates.

The chronic classification is based from chronic aquatic toxicity < 1 mg/L and indicating rapide partitioning and indicating a high potential for bioaccumulation.

Therefore, Lanthanum chloride is classified for acute (short-term) and chronic (long-term) aquatic hazard with N; R51/53. According the analogue approach Samarium chlorid has to be classified similiar to Lanthanum chloride.