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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.003 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.69 mg/L

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.12 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:
0.004 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

Classification relevant information for environmental hazard:

Degradation

Biodegradation: not readily biodegradable (29% and 17% biodegradation at 10 mg/L and 20 mg/L substance respectively, OECD 301B)

Hydrolysis: half-life: t1/2 < 16 min

 

Bioaccumulation

Log Kow:

Reaction mass containing six benzylated amine silanes: Log Kow: between -0.3 and 5.7 for the individual constituents (QSAR)

Silanol hydrolysis products: Log Kow: between -3.4 and 2.6 for the individual constituents (QSAR)

 

Aquatic acute toxicity

Fish: LC50 (96 h) = 75 mg/L (nominal, OECD 203)

Aquatic invertebrates: EC50 (48 h) = 74 mg/L (nominal, OECD 202)

Algae/aquatic plant: ErC50 (72 h) = 69 mg/L (nominal, OECD 201) 

 

Aquatic chronic toxicity:

Fish: NOEC (28 d) = 5 mg/L (nominal, OECD 215)

Aquatic invertebrates: NOEC (21 d) = 0.32 mg/L (nominal, OECD 211)

Algae/aquatic plant: and NOErC (72 h) = 10 mg/L (nominal, OECD 201) 

 

Classification according to CLP

Reaction mass containing six benzylated amine silanes (EC 700-961-2) is not considered rapidly biodegradable. Experimental data are available covering the potential acute and chronic toxicity of three trophic levels (fish, aquatic invertebrates and algae). The lowest acute effect values were indicated for algae and are clearly > 1 mg/L (ErC50 = 69 mg/L). Therefore, the substance is not classified for acute effects. The lowest chronic effect values were indicated for aquatic invertebrates (NOEC (21 d) = 0.32 mg/L). Thus, the test substance needs to be classified and labeled as “chronic category 2” (H411) according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).