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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flammability range:
2.5 to 13.5% (74% ethanol solution)
3.3 to 19%
3.3-3.5% to 15-19%

Key value for chemical safety assessment

highly flammable

Additional information

A limited but sufficient number of published values are available for the upper and lower flammability of pure ethanol. These values cover a reasonably narrow range of values and at least two are clearly different which suggest that they originate from different sources. At least one is judged to be from a reliable source. A highly reliable measured value is available for a preparation containing 75% ethanol. The value used for the key value is from the reliable published study.

Justification for classification or non-classification

The flashpoint is in the range where classification for flammability is required. Under the EU CLP regulation, a classification in category 2 for flammable liquids is required.