Registration Dossier

Diss Factsheets

Administrative data

Description of key information

Key value for chemical safety assessment

Justification for classification or non-classification

Triboron trimethyl hexaoxide is expected to hydrolyse in contact with water to form methanol (CAS 67-56-1) and boric acid (CAS 10043-35-3). For both hydrolysis products relevant sensitisation data was gathered from the ECHA dissemination dossier (d.d. 2014 -04 -25) and tabulated below. The classification of the parent substance is based on the worst case classification of both hydrolysis products.

 

Sensitisation data for methanol:

 

Study

Species

Route

Result

Maximisation test

Guinea pig

Skin

Not sensitising

 

Sensitisation data for boric acid:

 

Study

Species

Route

Result

Buehler test

Guinea pig

Skin

Not sensitising

 

In accordance with Regulation EC/1272/2008 and Directive 67/548/EEC, methanol and boric acid are not considered to be classified for skin sensitisation. There are no data available for respiratory sensitization.

Based on this information and due to the lack of a structural alert, Triboron trimethyl hexaoxide does not need to be classified in accordance with Regulation EC/1272/2008 and Directive 67/548/EEC.

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