Registration Dossier

Administrative data

Description of key information

Skin irritation / corrosion and eye irritation: Data are waived in accordance with REACH Annex VII, because all compounds are flammable gases at room temperature. In liquid form the mixture may cause burns and frostbite due to extreme cold. 

Key value for chemical safety assessment

Additional information

All components of the Reaction Mass of Butane and Butene (Butene, CAS 25167-67-3; Butane, CAS 106-97-8; Isobutane, CAS 75-28-5; 2-Methylpropene, CAS 115-11-7) are flammable gases at room temperature and therefore, the requirement for data on skin irritation / corrosion and eye irritation is waived in accordance with REACH Annex VII. In liquid form the mixture may cause burns and frostbite due to extreme cold.

Justification for classification or non-classification

Since the requirement for data on skin irritation / corrosion and eye irritation is waived in accordance with REACH Annex VII, a classification according to Annex VI of Directive 67/548/EWG or Annex I of Directive 1272/2008 (EU-GHS) is not required.