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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

In accordance with column 2 of REACH annex VII, determination of explosiveness is not required because the substance contains no chemical units associated with explosive properties and the oxygen balance calculation gives a value of -244 for tetrahydrofuran. 

Key value for chemical safety assessment

Additional information

Justification for classification or non-classification

The classification of tetrahydrofuran is concluded to be:

- under Directive 67/548/EEC criteria, R19 (May form explosive peroxides)

- under Regulation 1272/2008 (CLP GHS) criteria, not classified

- under UN GHS criteria, not classified