We would like to bring to your attention recent school incidents in England related to the improper storage of A-level chemistry substance 2,4-DNP (called 2,4-dinitrophenylhydrazine) where bomb disposal teams have been called in and consequently carried out controlled explosions.
- The product has been identified as being used in some A-level chemistry lessons.
- The problem result from allowing the product to dry out and therefore making it dangerous.
Haringey Council and the Department for Education would like to remind all schools and post-16 institutions of the importance of ensuring all chemicals used for practical science activities are stored safely.
CLEAPSS, is the recommended competent advisory service and you are advised to follow their recommendations regarding the named chemical – 2,4-DNP (2,4-dinitrophenylhydrazine).
- For advice on safe storage of chemicals, institutions should check the CLEAPSS website (external link). If you have further questions please contact the CLEAPSS helpline on 01895 251496.
- Specific advice on 2,4-DNP can be found on the CLEAPSS website (external link).
Recommended Action:
- Circulate this Alert Note to your relevant school staff i.e. science technician, science teacher, site managers.
- Assess your chemical storage and determine if this issue is relevant to your setting.
- Follow CLEAPSS advice (see attachment) and seek further advice from them if unsure.