Chemical formula of nitrogen monoxide

By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

The chemical formula of nitrogen monoxide is NO.

Physical Properties of Nitrogen Monoxide (NO):

Properties Details
Molecular FormulaNO
Molecular Weight30.01 g/mol
AppearanceColorless gas
OdorSlightly sweet or metallic odor
State of MatterGas at room temperature and pressure
Boiling Point-152.3 °C (-242.1 °F)
Melting Point-163.6 °C (-262.5 °F)
Density1.3402 g/L at 0 °C and 1 atm
SolubilitySlightly soluble in water
Vapor Pressure320 mmHg at 25 °C
Refractive Index1.000307 at 589 nm (gas)
Heat of Combustion-226.74 kJ/mol
Heat Capacity29.125 J/(mol·K)
Specific Gravity1.037

Chemical Properties of Nitrogen Monoxide (NO):

Properties Details
Chemical FormulaNO
Lewis StructureO=N
Bond TypeLinear, with a triple bond between nitrogen and oxygen
Oxidation StateNitrogen: +2, Oxygen: -2
ReactivityHighly reactive
StabilityRelatively unstable, tends to react to form other nitrogen oxides
CombustionReacts with oxygen to form nitrogen dioxide (NO2)
Acidic/Basic NatureNeutral
Redox Potential+0.80 V
Reaction with WaterReacts with water to form nitric acid (HNO3)
Reaction with MetalsCan react with some metals to form metal nitrates
Reaction with AmmoniaReacts with ammonia to form hydrazine (N2H4)

Reaction of nitrogen monoxide with Alkali Metal

Alkali MetalReaction with NO
Lithium (Li)6Li + 2NO   react and convert into  2Li2O + N2
Sodium (Na)4Na + 2NO   react and convert into  2Na2O + N2
Potassium (K)2K + 2NO   react and convert into  K2O + N2
Rubidium (Rb)2Rb + 2NO   react and convert into  Rb2O + N2
Cesium (Cs)2Cs + 2NO   react and convert into  Cs2O + N2

Reaction of nitrogen monoxide with Alkaline Earth Metal

Alkaline Earth MetalReaction with NO
Beryllium (Be)  no product  formed
Magnesium (Mg)  no product  formed
Calcium (Ca)  no product  formed
Strontium (Sr)  no product  formed
Barium (Ba)2Ba + 2NO   react and convert into  BaO + N2
Radium (Ra)  no product  formed

Reaction of nitrogen monoxide with Transition Metal

Transition MetalReaction with NO
Scandium (Sc)  no product  formed
Titanium (Ti)  no product  formed
Vanadium (V)  no product  formed
Chromium (Cr)  no product  formed
Manganese (Mn)  no product  formed
Iron (Fe)3Fe + 4NO   react and convert into  2Fe2O3 + 2 N2
Cobalt (Co)  no product  formed
Nickel (Ni)  no product  formed
Copper (Cu)  no product  formed
Zinc (Zn)  no product  formed
Yttrium (Y)  no product  formed
Zirconium (Zr)  no product  formed
Niobium (Nb)  no product  formed
Molybdenum (Mo)  no product  formed
Technetium (Tc)  no product  formed
Ruthenium (Ru)  no product  formed
Rhodium (Rh)  no product  formed
Palladium (Pd)  no product  formed
Silver (Ag)  no product  formed
Cadmium (Cd)  no product  formed
Hafnium (Hf)  no product  formed
Tantalum (Ta)  no product  formed
Tungsten (W)  no product  formed
Rhenium (Re)  no product  formed
Osmium (Os)  no product  formed
Iridium (Ir)  no product  formed
Platinum (Pt)  no product  formed
Gold (Au)  no product  formed
Mercury (Hg)  no product  formed
Rutherfordium (Rf)  no product  formed
Dubnium (Db)  no product  formed
Seaborgium (Sg)  no product  formed
Bohrium (Bh)  no product  formed
Hassium (Hs)  no product  formed
Meitnerium (Mt)  no product  formed
Darmstadtium (Ds)  no product  formed
Roentgenium (Rg)  no product  formed
Copernicium (Cn)  no product  formed
Nihonium (Nh)  no product  formed
Flerovium (Fl)  no product  formed
Moscovium (Mc)  no product  formed
Livermorium (Lv)No

Reaction of nitrogen monoxide with Non-Transition Metal

Non-Transition MetalReaction with NO
Hydrogen (H)2NO + 2H2   react and convert into  N2+ 2H2O
Helium (He)  no product  formed
Lithium (Li)  no product  formed
Beryllium (Be)  no product  formed
Boron (B)  no product  formed
Carbon (C)  no product  formed
Nitrogen (N)  no product  formed
Oxygen (O)2NO + O2   react and convert into  2NO2
Fluorine (F)2NO + F2   react and convert into  2NOF
Neon (Ne)  no product  formed
Sodium (Na)4NO + Na + 3O2   react and convert into  2Na2O + 4NO2
Magnesium (Mg)  no product  formed
Aluminum (Al)2NO + 2Al + 3H2O   react and convert into  2Al(OH)3 + N2
Silicon (Si)  no product  formed
Phosphorus (P)  no product  formed
Sulfur (S)2NO + SO2   react and convert into  2NO2 + SO3
Chlorine (Cl)2NO + Cl2   react and convert into  2NOCl
Argon (Ar)  no product  formed
Potassium (K)4NO + K + 3O2   react and convert into  2K2O + 4NO2
Calcium (Ca)  no product  formed
Gallium (Ga)  no product  formed
Germanium (Ge)  no product  formed
Arsenic (As)  no product  formed
Selenium (Se)  no product  formed
Bromine (Br)2NO + Br2   react and convert into  2NOBr
Krypton (Kr)  no product  formed
Rubidium (Rb)4NO + Rb + 3O2   react and convert into  2Rb2O + 4NO2
Strontium (Sr)  no product  formed
Yttrium (Y)  no product  formed
Zirconium (Zr)  no product  formed
Niobium (Nb)  no product  formed
Molybdenum (Mo)  no product  formed
Technetium (Tc)  no product  formed
Ruthenium (Ru)  no product  formed
Rhodium (Rh)  no product  formed
Palladium (Pd)  no product  formed
Silver (Ag)  no product  formed
Cadmium (Cd)  no product  formed
Indium (In)  no product  formed
Tin (Sn)  no product  formed
Antimony (Sb)  no product  formed
Tellurium (Te)  no product  formed

Reaction of nitrogen monoxide with Non-Metal

Non-MetalReaction with NO
Hydrogen (H)2NO + 2H2   react and convert into  N2+ 2H2O
Helium (He)  no product  formed
Carbon (C)  no product  formed
Nitrogen (N)  no product  formed
Oxygen (O)2NO + O2   react and convert into  2NO2
Fluorine (F)2NO + F2   react and convert into  2NOF
Neon (Ne)  no product  formed
Phosphorus (P)  no product  formed
Sulfur (S)2NO + SO2   react and convert into  2NO2 + SO3
Chlorine (Cl)2NO + Cl2   react and convert into  2NOCl
Argon (Ar)  no product  formed
Bromine (Br)2NO + Br2   react and convert into  2NOBr
Iodine (I)2NO + I2   react and convert into  2NOI
Xenon (Xe)  no product  formed