Iodine and this ligand are complexed with iridium to catalyze the production of acetic acid from methanol in the Cativa process. Due to pi-backbonding, this ligand has the largest crystal-field splitting parameter in the spectrochemical series. This compound and hydrogen form water gas, and it is the primary reducing agent (10[1])in blast furnaces. Though it (-5[1])is not produced during complete combustion, (10[1])incomplete combustion (10[1])produces (10[1])this compound. (10[4])This (10[1])compound binds 200 times more strongly to hemoglobin (10[1])than oxygen, so low concentrations can lead to poisoning. For 10 points, (-5[1])name this odorless and colorless gas (10[1])with formula CO. ■END■ (10[1])