Rhubarb is something of a wonder plant – in addition to an unknown poison in its leaves, they also contain a corrosive acid.
It took on a charge in shadows, underwater or even submerged in a corrosive bleach solution.
Because it is a corrosive acid, it must be "buffered" to damp down the acidity, and it is usually administered as sodium dichloroacetate.
A dry scab or slough formed on the skin as a result of a burn or the action of a corrosive or
It is a corrosive which weakens the organization and its fighting capacity.