CO - CARBON MONOXIDE

Properties of carbon monoxide:

It is colorless, odorless and lighter than air. Poorly soluble in water (solubility is increased in the presence of NH3, HCl). It is chemically active at high temperatures; a strong reducing agent. It reacts with oxygen, chlorine, sulfur, ammonia, alkalis and metals. Preparation in the industry - the gasification of solid fuels, in the laboratory - decomposition of formic acid - HCOOH.


Molar mass g/mol 28.01
Density g/litre 1.25
Boiling point °C -191.5

Chemical reactions with carbon monoxide:

CO + H2O(vapor) = CO2 + H2 (above 230° C, catalyst Fe2O3).

CO + NaOH = Na(HCOO) [120-130° C, solution].

CO + 3H2 = CH4 + H2O (150-200° C, catalyst Ni),

CO + 2H2 = CH3OH (250-300° C, (p), catalyst CuO/Cr2O3).

2CO + O2 = 2CO2 (normal temp., catalyst MnO2/CuO),

2CO + O2 = 2CO2 (burning on air).

CO + Cl2 = CCl2O (125-150° C, catalyst C/Pt).

CO + S = CSO (350° C, catalyst C).

CO + NH3 = HCN + H2O (500-800° C, catalyst A2O3/ThO2),

CO + NH3 • H2O(hot) = NH4(HCOO).

5CO + I2O5 = 5CO2 + I2.

CO + H2O(vapor) + CaO = CaCO3 + H2 (400-500° C).

4CO + Ni = [Ni(CO)4] (50-100° C).

5CO + Fe = [Fe(CO)5] (100-200° C, p).

CO + PdCl2 + H2O = Pd↓ + CO2↑ + 2HCl.

3CO + H2O + KOH + 2KMnO4 = 2MnO2↓ + 3KHCO3 (catalyst Ag).

3CO + 4H2O + KOH + K2Cr2O7 = 2Cr(OH)3↓ + 3KHCO3 (catalyst HgO).

CO + Na2O2 = Na2CO3 (normal temp.).


 

Did you know?

Though solid at room temperature, gallium will liquefy in your hand.