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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Members of the butenes category are flammable gases at room temperature but in liquid form they may cause burns and frostbite due to extreme cold.

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin corrosion: in vitro / ex vivo
Data waiving:
other justification
Justification for data waiving:
other:
Endpoint conclusion
Endpoint conclusion:
no study available

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vitro / ex vivo
Data waiving:
other justification
Justification for data waiving:
other:
Endpoint conclusion
Endpoint conclusion:
no study available

Respiratory irritation

Endpoint conclusion
Endpoint conclusion:
no study available

Additional information

In accordance with REACH Annexes VII and VIII, column 2 adaptation, studies on skin and eye irritation do not need to be conducted as members of the butenes category are flammable gases at room temperature. There are no data available as no skin or eye irritation studies have been conducted with members of this category, because testing is not technically feasible, but category members have shown no signs of irritation in repeated-exposure inhalation studies at concentrations as high as 50% LEL. Based on physical chemical properties, liquid butenes may cause burns and frostbite due to the extreme cold of the liquid.

Justification for classification or non-classification

Members of the butenes category are flammable gases at room temperature. There is no evidence that category members are irritating and therefore do not warrant classification under GHS/CLP.