Liquid Fuel

The  item is an explosive device found in S.T.A.L.K.E.R.: Lost Alpha.

"A dangerous type of fuel that is not flammable, because it is uses an iron catalyst, many industrial facilities use it in production of heavy metals. The soviet military used it in the past for powering-up their underground generators and portable devices in heavy guarded areas."

- Inventory description

Trivia

 * Not flammable does not exclude the potential for the item to explode.