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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to soil microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
toxicity to soil microorganisms
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

The performance of a study investigating the toxicity of aluminium sodium silicates towards soil microorganisms was waived due to the natural abundance of SiO2, silicates and aluminium as minerals in soil.

Key value for chemical safety assessment

Additional information

No study with synthetic amorphous aluminum sodium silicate indicated, based on the natural abundance of SiO2 and silicates as minerals in soil. In fact, silicon is the second most abundant element in the earth’s crust mass (approx. 28 %) after oxygen. It appears as complex silicate minerals in soils and sediments, as the oxide (silica, SiO2) in crystalline form in rocks, soils and sand, and as biogenic silica in organisms such as diatoms, and in plants such as grass, rushes, rice or sugar cane. Synthetic amorphous silica and silicates released into the environment are expected to combine indistinguishably with the soil or sediment due to their similarity with inorganic soil/sediment matter and will be subjected to natural processes under environmental conditions (cation exchange, dissolution, sedimentation). The same applies to aluminium which is the third most abundant element (approx. 8%) in the earth's crust.