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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Flammability

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Administrative data

Link to relevant study record(s)

Description of key information

The flammability is between  1.4 and 7.8 % v/v for  Hydrocarbons, C5, n-alkanes, isoalkanes, based on calculated values,

Key value for chemical safety assessment

Flammability:
highly flammable

Additional information

The flammability is between 1.4 and 7.8 % v/v for Hydrocarbons, C5, n-alkanes, isoalkanes, based on calculated values. This has been agreed by the consortium to represent the substance.

Justification for classification or non-classification

The boiling point range for 2 -methylbutane is 25 to 65oC and the flashpoint is 0oC. According to the CLP legislation (2008) a liquid with a flash point of <23oC and a boiling point of <35oC is classifiable as a Category 1 with the hazard statement "extremely flammable liquid and vapour".

The boiling point range for cyclopentane is 48 to 50oC and the flashpoint is -20oC. According to the CLP legislation (2008) a liquid with a flash point of <23oC and a boiling point of >35oC is classified as a Category 2 flammable liquid with the hazard phrase "highly flammable liquid and vapour".

The boiling point for n-pentane is 28 to 70oC and the flashpoint is -20oC. According to the CLP legislation (2008) a liquid with a flash point of <23oC and a boiling point of <35oC is classifiable as a Category 1 flammable liquid with the hazard phrase "extemely flammable liquid and vapour".

The boiling point range for hydrocarbons C5 is 14 to 50°C and the flashpoint is -20°C. According to the CLP legislation (2008) a liquid with a flash point of <23°C and a boiling point of <35°C is classifiable as a Category 1 flammable liquid with the hazard phrase "extremely flammable liquid and vapour".