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Physical & Chemical properties

Explosiveness

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Description of key information

Explosiveness: non explosive

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Decomposition of peracetic acid can be initiated by high temperatures, high pH and contamination with metal catalysts such as copper, iron, and chromium, and incompatible organic materials. The decomposition of peracetic acid is strongly exothermic, liberating large volume of oxygen gas. The tested peracetic acid products with 5% and 15% were not explosive as they exhibited no mechanical or thermal sensitivity (Mekelburger, 2007). In literature, it is reported that peracetic acid (highly concentrated)is insensitive to impact, but explodes violently when heated to 110°C (Swern,. 1970). It is also reported that frozen concentrated peracetic acid exploded readily by friction at -20°C.

Justification for classification or non-classification

The available data on explosiveness of peracetic acid do not meet the criteria for classification according to Regulation (EC) 1272/2008 and are therefore are not conclusive but not sufficient for classification.