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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.022 mg/L
Assessment factor:
10
PNEC freshwater (intermittent releases):
0.17 mg/L

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
1 mg/L
Assessment factor:
100

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.012 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:
0.011 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

Based on the NOEC value 0.225 mg/l from the 21 day Chronic Daphina Study and Unoxol 3 ,4 Dialdehyde being readily biodegradable, this will lead to chronic aquatic category 3 classification. For the acute aquatic endpoint, the LC50 values are between 10-100 mg/l for all the three trophic levels (26 mg/L [96 -hour LC50 values for carp], 89 mg/L [48 -hour EC50 value forD. magna], and 17 mg/L [72-hour EC50 based on growth rate for S. capricornutum]which results in an acute aquatic category 3 for GHS. 

The crude grade material of Unoxol 3 ,4 Dialdehyde contains up to 6% heptane resulting in an classification of chronic aquatic category 2 for the "Crude" as heptane is classified as Acute Aquatic 1 and Chronic Aquatic 1.