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24 hour emergency response centre: 0845 2608 999

Telephone UK: 08454 608 911 | International: +44 (0)1329 226 150

Explosive Substances (inc Chemicals) Disposal

Our specialist teams are fully trained and equipped to deal with assessment or disposal of chemicals of an explosive nature.


Chemicals can have a minimal explosive hazard during normal use, but following prolonged or poor storage they can degrade and become unsafe to transport. Many of these substances can fall into the category of highly sensitive explosive compounds known as Primary High Explosives.


For a more immediate response, please call our 24/7 Control Room on 08452 608 999. Alternatively, our sales team can provide further details on 08454608911.


Picric Acid is an organic compound that is highly unstable and sensitive to shock, heat or friction when dried.

If the bottle that the chemical is being stored in is old and the acid inside has dried, some crystals may have formed on the threads of the bottle and the friction created from removing the cap might be enough to detonate the container.

If you are in any doubt regarding what to do with picric acid, please contact our specialist teams immediately to assist you with advice or to arrange disposal.


2,4-Dinitrophenylhydrazine, 2,4-DNP, DNPH, or Brady’s Reagent is a chemical compound identified as a red to orange solid. If allowed to dry out, DNPH can explode if subjected to shock, friction, or heat.

Ramora UK have been given authorisation from the Health and Safety Executive (HSE) to compliantly transport wetted/re-hydrated 2,4-Dinitrophenylhydrazine, (UN Number: 3380, desensitized explosive) in approved packaging that meets ADR standards.

If you are in any doubt regarding what to do with DNPH, please contact our specialist teams immediately to assist you with advice or to arrange disposal.

If you are a local authority officer, representative from a primary/secondary school or school/college technician and you have discovered 2,4-Dinitrophenylhydrazine please contact the Consortium of Local Education Authorities for the Provision of Science Services (CLEAPSS) to receive further guidance on how to dispose of 2,4-DNPH.

Link to CLEAPSS Website


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