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Physical & Chemical properties

Flammability

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Description of key information

Flammability: flammable liquid

Key value for chemical safety assessment

Flammability:
flammable

Additional information

The flammability study is not required for liquids as flammability is assessed on the basis of flash point. The substance has a flash point of 25.5 - 26°C at 1013 hPa.

 

There is no indication on the basis of structure and experience in handling and use that the substance is pyrophoric (flammable in contact with air) or flammable in contact with water.

 

Therefore, in accordance with Section 1 of REACH Annex XI, there is no need to conduct further flammability testing.

 

A lower explosive limit (LEL) of 1.4vol% and an upper explosive limit (UEL) of 23.94vol% were determined for the substance in accordance with ASTM E918-83. In available secondary sources, LEL of 1.4vol% at 54°C and UEL of 19.9vol% at 82°C and LEL value of 1.1vol% were reported for the submission substance.

Justification for classification or non-classification

The substance has reliable measured flash points in the range 23-26°C (key study 25.5 -26°C) and a boiling point of 123°C. These results indicate that the substance should be classified as Flammable Liquid Category 3 according to Regulation (EC) No. 1272/2008. Sources to which reliability could not be assigned indicate flash points in the range 22 -28°C; some of these results would indicate a different classification.

According to Regulation (EC) No. 1272/2008 (CLP Regulations)

  • The flash point values =23°C combined with a boiling point of 123°C indicate a classification of Flam. Liq. 3, H226: Flammable liquid and vapour, according to Regulation 1272/2008.
  • A flash point value <23°C combined with a boiling point of 123°C indicates a classification of Flam. Liq. 2, H225: Highly flammable liquid and vapour, according to Regulation 1272/2008.

Flash point is sensitive to the presence of volatile impurities in the substance. Individual manufacturers will classify their product according to the flash point measured for that product.