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Diss Factsheets

Physical & Chemical properties


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Description of key information

Hydrogen peroxide (87%) does not fulfil the criteria for classification as an explosive, which was demonstrated in a guideline study following EU Method A.14 (Degussa 1977).

Key value for chemical safety assessment

non explosive

Additional information

The following text is copied from the EU Risk Assessment Report (European Commission 2003):

"Hydrogen peroxide can decompose explosively. At atmospheric pressure vapours containing 26 mol % or more hydrogen peroxide can be exploded by a spark, by contact with catalytically active materials initially at room temperature, or by “non-catalytic” materials at elevated temperatures. Because of the high relative volatility of water to hydrogen peroxide, the danger of vapour phase explosion on storage of liquid hydrogen peroxide will be encountered only with concentrated solutions above 74% at elevated temperatures (Schumb et al., 1955). At concentrations above 86% wt. the liquid itself can be made to explode (CEFIC, 1998). Hydrogen peroxide (87%) does not however fulfil the criteria for classification as an explosive (Degussa AG, 1977a)."

Justification for classification or non-classification

An aqueous solution of hydrogen peroxide containing 87 % w/w was not classified as an explosive in the steel tube test according to the

guideline study applying EU Method E.14 (Degussa 1977).