Chemicals, including cyanide and sulphuric acid were stolen during a burglary in Great Central Way, Woodford Halse, at the weekend.
The chemicals, which are kept in one litre glass bottles, with rubber stoppers, also included hydrochloric acid, nitric acid and thallium and were taken at some point on Sunday night.
An X-ray machine was also taken from the chemical processing site during the burglary.
Police would like to speak to anyone who may have been in the Great Central Way area of Woodford Halse on Sunday night or the early hours of Monday morning, and saw any suspicious activity.
Detective Inspector Phil Mills, from CID, said: “We believe these chemicals have been taken by organised criminals who want to use them in the same way the business they were stolen from use them, to process metals.
“However, these are extremely dangerous chemicals, especially when mixed together, and should only be used by experienced people who have had the relevant training.
“If anyone has seen these bottles, or knows where they are, I would urge them to not touch them, but to call us or the fire service to ensure they are removed correctly. If people do not want to report to the police they can contact the independent charity Crimestoppers anonymously to pass on the location of the bottles.”
All of the chemicals are clear and in glass, litre sized bottles, with rubber stoppers. They are labelled as hazardous, and marked with the relevant chemical symbols.
Anyone who knows the whereabouts of the chemicals or has any information about the burglary is asked to contact police on 101, or Crimestoppers anonymously on 0800 555 111.