Bog iron used for the adsorption of H2S from coke oven gas is___________________?
Bog iron used for the adsorption of H2S from coke oven gas is___________________?
A. An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide)
B. Iron impregnated with resin (usually Bakelite)
C. Carbon free iron
D. None of these