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It depends what the ash comes from.
tree + fire = ash, ash, and coal
Ash weighs nothing.
ash is burnt coal
A cubic foot of loose coal "stoker coal" weighs between 40 and 60 pounds. A solid cubic foot of coal can weight up to 84 pouinds. Moisture and foreign material such as dirt and ash will of course affect the weight.
I assume that by the name that would be the leftover ash from a coal fire (such as from a coal powered electric generating plant) mixed with water to form a slurry.
I assume that by the name that would be the leftover ash from a coal fire (such as from a coal powered electric generating plant) mixed with water to form a slurry.
Ash
Coal ash is the residue from burning coal and contains all of the nonvolatile components of he coal (carbon compounds, sulfur and some metals). The ash is made up of silicates, metals (including toxic metals like mercury and uranium) and some unburnt carbon.
The colour when coal is burnt is white,when it become ash
The small pieces of unburnt coal left over when most of the coal has burnt to ash.
Robert H. Davis has written: 'Electron beam ionization for coal fly ash precipitators' -- subject(s): Fly ash, Coal ash