Hydrogen peroxide [Chemical formula, Physical, Chemical Properties and Reactions]

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

Chemical formula of hydrogen peroxide is H2O2.

Property Description
Appearance Colorless liquid
Boiling Point 150.2 °C
Chemical Formula H2O2
Density 1.45 g/cm³
Melting Point -0.43 °C
Odor Slightly pungent
pH Level Acidic (around pH 3)
Solubility Miscible with water, alcohol, and ether
Vapor Pressure 23.3 mmHg at 20 °C

Chemical Properties of Hydrogen Peroxide:

Reaction of hydrogen peroxide

Alkali metal

Alkali metal Reaction Balanced chemical equation
Lithium (Li) Reaction 2Li + 2H2O2   react and changes into  2LiOH + H2O + O2
Sodium (Na) Reaction 2Na + 2H2O2   react and changes into  2NaOH + H2O + O2
Potassium (K) Reaction 2K + 2H2O2   react and changes into  2KOH + H2O + O2
Rubidium (Rb) Reaction 2Rb + 2H2O2   react and changes into  2RbOH + H2O + O2
Cesium (Cs) Reaction 2Cs + 2H2O2   react and changes into  2CsOH + H2O + O2

 

Alkaline earth metal

Alkaline earth metal Reaction Balanced chemical equation
Beryllium (Be) Reaction No reaction
Magnesium (Mg) Reaction Mg + H2O2   react and changes into  MgO + H2O + O2
Calcium (Ca) Reaction Ca + 2H2O2   react and changes into  Ca(OH)2 + H2O + O2
Strontium (Sr) Reaction Sr + 2H2O2   react and changes into  Sr(OH)2 + H2O + O2
Barium (Ba) Reaction Ba + 2H2O2   react and changes into  Ba(OH)2 + H2O + O2

Transition metal

 

Transition metal Reaction Balanced chemical equation
Scandium (Sc) Reaction No reaction
Titanium (Ti) Reaction Ti + 2H2O2   react and changes into  TiO2 + 2H2O
Vanadium (V) Reaction V + H2O2   react and changes into  VO2 + 2H+
Chromium (Cr) Reaction Cr + 3H2O2   react and changes into  Cr(OH)3 + 3H+
Manganese (Mn) Reaction Mn + 2H2O2   react and changes into  MnO2 + 2H2O
Iron (Fe) Reaction Fe + H2O2   react and changes into  FeO + H2O
Cobalt (Co) Reaction Co + H2O2   react and changes into  Co(OH)2
Nickel (Ni) Reaction Ni + H2O2   react and changes into  Ni(OH)2
Copper (Cu) Reaction Cu + H2O2   react and changes into  CuO + H2O
Zinc (Zn) Reaction Zn + H2O2   react and changes into  ZnO + H2O

 

 

Non-transition metal

Non-transition metal Reaction Balanced chemical equation
Aluminum (Al) Reaction 2Al + 6H2O2   react and changes into  2Al(OH)3 + 3H2O + 3O2
Gallium (Ga) Reaction 2Ga + 6H2O2   react and changes into  2Ga(OH)3 + 3H2O + 3O2
Indium (In) Reaction In + 3H2O2   react and changes into  In(OH)3 + 3H+
Tin (Sn) Reaction Sn + 2H2O2   react and changes into  SnO2 + 2H2O
Lead (Pb) Reaction Pb + 2H2O2   react and changes into  PbO2 + 2H2O
Antimony (Sb) Reaction Sb + 3H2O2   react and changes into  Sb(OH)3 + 3H+
Bismuth (Bi) Reaction 2Bi + 6H2O2   react and changes into  2Bi(OH)3 + 3H2O + 3O2

 

Non-metal element

Non-metal element Reaction Balanced chemical equation
Hydrogen (H) Reaction 2H2O2   react and changes into  2H2O + O2
Carbon (C) Reaction C + 2H2O2   react and changes into  CO2 + 2H2O
Nitrogen (N) Reaction No reaction
Oxygen (O) Reaction 2H2O2   react and changes into  2H2O + O2
Fluorine (F) Reaction 2H2O2 + 2HF   react and changes into  2H2O + O2
Chlorine (Cl) Reaction 2H2O2 + 2HCl   react and changes into  2H2O + Cl2
Bromine (Br) Reaction 2H2O2 + 2HBr   react and changes into  2H2O + Br2
Iodine (I) Reaction 2H2O2 + 2HI   react and changes into  2H2O + I2

 

Metalloid element

 

Metalloid element Reaction Balanced chemical equation
Boron (B) Reaction No reaction
Silicon (Si) Reaction No reaction
Germanium (Ge) Reaction Ge + 3H2O2   react and changes into  GeO2 + 3H2O
Arsenic (As) Reaction As + 3H2O2   react and changes into  AsO43- + 3H+
Antimony (Sb) Reaction Sb + 3H2O2   react and changes into  Sb(OH)3 + 3H+
Tellurium (Te) Reaction Te + 4H2O2   react and changes into  TeO42- + 4H+

 

 

 

 

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