A Black Substance That Comes From Burning Wood. Chimney soot is fine black or dark brown powder formed due to incomplete combustion of wood or coal in a confined place. Hence it can be correctly referred to as the byproduct of fireplace combustion.
Hence it can be correctly referred to as the byproduct of fireplace combustion. Why do things turn black after. Soot is formed in a temperature lower than 284 degrees.
