One of the disadvantages of oxyliquits is that, once mixed, they are sensitive to sparks, shock, and heat, in addition to reported cases of spontaneous ignition. The power relative to weight is high, but the density is low, so the brisance is low as well. Ignition by a fuse alone is sometimes unreliable. The charge should be detonated within 5 minutes of soaking, but even after 15 minutes it may be capable of exploding, even though weaker and with production of carbon dioxide.