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Exploding Salt

If a small quantity of powdered charcoal and hyper-oxymuriate of

potash be rubbed together in a mortar, an explosion will be produced,

and the charcoal inflamed. Three parts of this salt, and one of

sulphur, rubbed together in a mortar, produce a violent detonation. If

struck with a hammer on an anvil, there is an explosion like the

report of a pistol.

When concentrated sulphuric acid is poured upon this salt, there is a

considerable explosion; it is thrown about to a great distance,

sometimes with a red flame; and there is exhaled a brown vapour,

accompanied with a strong odour.