Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.1 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.428 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.01 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.033 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:
0.042 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Key data environmental classification:

  • Short term fish: LC50 for freshwater fish: 75 mg/L
  • Short term Daphnia: EC50/LC50 for freshwater invertebrates: 42.81 mg/L
  • Short term algae: EC50 for freshwater algae: 74.32 mg/L
  • Long term Daphnia: NOEC (21 d) for freshwater invertebrates: 10 mg/L
  • Long term algae: EC10 (72 h, growth rate) for freshwater algae: 11.8 mg/L
  • Effect on micro-organisms: EC10 (18 h) for aquatic microorganisms: 44.6 mg/L
  • Biodegradability: Readily biodegradable
  • Log Kow: –2.61

Short term aquatic hazard:

Category acute 1: no classification (all acute values > 1 mg/L)

Long term aquatic hazard:

(ii) Readily biodegradable, no bioaccumulation, adequate chronic toxicity data available; no classification (all chronic values > 1 mg/L)

Considering all available data from acute and/or chronic toxicity tests on aquatic organisms and taking into account the provisions laid down in Regulation 1272/2008 CLP (GHS), including ATP 790/2009 and ATP 286/2011, maleic acid does not need to be classified as hazardous to the aquatic environment.