Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.001 mg/L
Assessment factor:
1 000
PNEC freshwater (intermittent releases):
0.007 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
10 000

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.003 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:
0.006 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Additional information

Conclusion on classification

Classification related key information

Biodegradation in water: screening test: 53% (O2-consumption) in 28 days (ISO Draft – BOD Test for Insoluble Substances)

QSAR (BIOWIN v.4.00) = readily biodegradable

Log Kow: 4.00 (KOWWIN v.1.67)

Acute toxicity:

- to Fish: LC50 (96 h) = 1.27 – 2.68 mg/L based on QSAR calculations

- to Aquatic invertebrates: L(E)C50 (48 h) = 0.91 - 2.15 mg/L based on QSAR-calculations

- to Algae: ErC50 (72 h / 96 h) = 0.66; ErC50 (96 h) = 1.27 mg/L based on QSAR-calculations

Chronic toxicity:

- to Fish: not available

- to Aquatic invertebrates: not available

- to Algae: not available

 

Classification justification according to CLP

Based on the data above, 1,7 -octadiene is considered to have moderate potential for bioaccumulation (cut-off value for log Pow = 4.0) and is rapidly degradable. The acute aquatic toxicity L(E)C50 is < 1 mg/L for algae. Valid chronic aquatic toxicity data are not available. 1,7 -octadiene has been classified and labelled as environmental hazard Acute Cat. 1 and Chronic Cat. 1 according to the Regulation (EC) No.1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2ndATP).

 

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

M-factor for chronic aquatic toxicity: not possible due to absence of chronic data

 

Classification justification according to DSD

Based on the data above, 1,7 -octadiene is considered to have a moderate potential for bioaccumulation (cut-off value for log Pow = 3.0) but is rapidly degradable. The acute aquatic toxicity L(E)C50 is < 1 mg/L for algae. Therefore 1,7 -octadiene has been classified and labelled as environmental hazard R50/53 according to the Directive 67/548/EEC.