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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
0.062 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.088 mg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.026 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:
0.015 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

Degradation (only key data needed for classification)

Biodegradation: not readily biodegradable; 39% biodegradation within 28 days (EU Method C.4-A)

 

Bioaccumulation (only key data needed for classification) 

Bioaccumulation is expected to be low.

N-[3-(triethoxysilyl)propyl]ethylenediamine: Log Kow 1.2 (QSAR)

N-(3-(trihydroxysilyl)propyl)ethylenediamine: Log Kow -3.4 (QSAR)

 

Aquatic acute toxicity (for each species only one key data used for classification)

- For fish: LC50 (96 h): 597 mg/l mortality (Danio rerio) (RA to N-(3- (trimethoxysilyl)propyl)ethylenediamine (CAS 1760-24-3))

- For aquatic invertebrates: EC50 (96 h): 23 mg/l mortality (Daphnia magna)

- For algae/aquatic plant: EC50 (72-h): 8.8 mg/l growth rate (Pseudokirchneriella subcapitata) (RA to N-(3-(trimethoxysilyl)propyl)ethylenediamine (CAS 1760-24-3))

 

Aquatic chronic toxicity (for each species only one key information)

- For fish: no data available on the substance.

For aquatic invertebrates: NOEC (21-day): ≥1 ppm survival and reproduction (Daphnia magna) (RA to N-(3-(trimethoxysilyl)propyl)ethylenediamine (CAS 1760-24-3))

- For algae/aquatic plant: NOEC (72-h): 3.1 mg/l growth rate (Pseudokirchneriella subcapitata) (RA to N-(3-(trimethoxysilyl)propyl)ethylenediamine (CAS 1760-24-3))

 

Classification assigned according to GLP

The substance is considered to be not readily degradable and has low potential for bioaccumulation (log Kow < 3). Valid acute and chronic toxicity data are available for the read across substance. Adequate long-term data are available with NOEC values ≥1 mg/l. Therefore N-[3-(triethoxysilyl) propyl]ethylenediamine is not classified and labelled according to the 7th ATP of Regulation (EC) No. 1272/2008 (CLP).