Thanks for your replies fellas
there is about 400 litres of the stuff in 10 litre plastic containers stored on wooden pallets in a 'service corridor'. Now this corridor has offices off it as well as supplies, (stores) post room, laundry, sewing room and mortuary. The corridor itself is now an overflow store from supplies who have had storage space taken off them to convert it to a conference room. the corridor is about 50 metres long with stacked up boxes all the length of one of the walls.
Any fire in this corridor....with the aid of the propelling chemicals will be catastrophic
This is the general description
A colourless liquid. Contact may severely irritate the skin, eyes, and mucous membranes. Decomposes violently on contact with many metals. Contact with combustible materials may result in spontaneous ignition. Under prolonged exposure to fire or heat containers may rupture violently and rocket.