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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

There are 2 key studies with sufficient reliability: one with oral administration and one with dermal application.
Further 2 studies with oral administration and 6 studies with administration of GaAs by other routes have no sufficient reliability and are therefore ignored.
A single dosage of 10000 mg GaAs/kg bw either administered orally or applied dermally had no effect.
According to the results of these 2 studies GaAs can be classified as practically nontoxic and a classification for acute toxicity is not required.

Key value for chemical safety assessment

Additional information

A single dosage of 10000 mg GaAs/kg bw either administered orally or applied dermally has no effect. This is in good agreement with the properties of GaAs as they were seen in the water solubility study: GaAs is practically not soluble in water. Dissolution of GaAs in water only occurs as the result of oxidation. This seems to be a relatively slow process not relevant during single oral administration or application of GaAs to the skin.

Justification for classification or non-classification

A single dosage of 10000 mg GaAs/kg bw either administered orally or applied dermally has no effect.

GaAs can be classified as practically nontoxic and a classification for acute toxicity is not required according to the criteria of the CLP-regulation.