Explosive material invented by Swedish chemist Alfred Nobel in 1875 (9)

I believe the answer is:

gelignite

(Other definitions for gelignite that I've seen before include "factor in altering mine?" , "Tieing leg up in explosive" , "(E.g. quarry) explosive" , "source of flare-up" , "Explosive used in mining" .)

I've seen this clue in The Independent.

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