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Description of key information

Anhydrous ammonia is a flammable gas

Key value for chemical safety assessment


Additional information

Anhydrous ammonia was found to be flammable, with a lower explosion limit of 16% and an upper explosion limit of 25%.

Justification for classification or non-classification

Anhydrous ammonia is listed on Annex I of Directive 67/548/EEC with classification as (R10) 'Flammable'. This classification is consistent with the data available: no change is proposed.