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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:
no hazard identified

Sediment (marine water)

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no hazard identified

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The substance has reliable short-term E(L)C50 values of >100 mg/l for freshwater fish (Danio rerio), invertebrates (Daphnia magna) and algae (Desmodesmus subspicatus). Another weight-of-evidence study reported an EC50 value of >536 mg/l for freshwater algae (Desmodesmus subspicatus). It has reliable NOErC and ErC10 values of =100 mg/l and 503 mg/l, respectively, for algae. The values are expressed in terms of the parent substance, 3-trimethoxysilylpropyl methacrylate.

The substance hydrolyses rapidly in water and the silanol hydrolysis product is not readily biodegradable. The log Kow of the parent substance is 2.1 (at pH 7 and 21±1°C (OECD 107)) and of the silanol hydrolysis product is -0.9 (at pH 7 and 20°C (QSAR)).

These data are consistent with the following classification under Regulation (EC) No 1272/2008 (as amended) (CLP):

Acute toxicity: Not classified.

Chronic toxicity: Not classified

According to Directive 67/548/EEC: Not classified