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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.152 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.616 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.015 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
6.4 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.024 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:
0.012 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

At pH values relevant for the environment, (pH 4 -9), Bis(pentane-2,4-dionato-O,O')calcium is largely dissociated to pentane-2,4-dione (99.9% to 12.2%), and calcium is a natural constituent of the environment and is not considered relevant for hazard assessment. Thus, data from pentane-2,4-dione are used and converted to equivalent values for Bis(pentane-2,4-dionato-O,O')calcium using the molecular weights.

 

Existing data on pentane-2,4-dione (CAS 123 -54.6)

acute algae: 72 hr ErC50 = 83.22 mg/L

acute Daphnia: 48 hr EC50 = 25.9 mg/L

acute fish: 96 hr LC50 = 104 mg/L

chronic algae: 72 hr NOEC = 3.2 mg/L

chronic Daphnia: 21 days NOEC = 18 mg/L

 

Molecular weight correction (factor of 2.38)

Molecular weight (pentane-2,4-dione): 100.13

Molecular weight (Bis(pentane-2,4-dionato-O,O')calcium): 238.30

 

 

Adjusted data based on molecular weight corrections

acute algae: 72 hr ErC50 = 198.06 mg/L

acute Daphnia: 48 hr EC50 = 61.64 mg/L

acute fish: 96 hr LC50 = 247.52 mg/L

chronic algae: 72 hr NOEC = 7.62 mg/L

chronic Daphnia: 21 days NOEC = 42,8 mg/L

Conclusion on classification

Classification according to CLP (Regulation (EC) No 1272/2008).

Acute classification

All effect values are > 1 mg/L, thus Bis(pentane-2,4-dionato-O,O')calcium has no acute classification

Chronic classification.

The existing chronic data is for algae and Daphnia; chronic classification is done using both chronic and acute data and the most stringent outcome is then used for classification

Chronic data:

Substance is readily biodegradable and the existing chronic data (chronic algae: 72 hr NOEC = 7.62 mg/L; chronic Daphnia magna: 21 days NOEC = 42.8 mg/L). Using the criteria in Table 4.1.0(b)(ii) results in no classification

Acute data:

Substance is readily biodegradable and the lowest acute value (48 hr EC50 Daphnia: 61.64 mg/L). Using the criteria in Table 4.1.0(b)(iii) results in no classification

 

Final classification

Based on the existing data,Bis(pentane-2,4-dionato-O,O')calcium is not classified for the environment.