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Water treatment and disinfection

Hydrogen peroxide vs sodium hypochlorite

Hydrogen peroxide (H2O2, CAS 7722-84-1) and sodium hypochlorite (ClNaO, CAS 7681-52-9) are both listed under oxidizing and reducing agents.

Hydrogen peroxide has a molar mass of 34.01 g/mol, sodium hypochlorite 74.44 g/mol.

Measured boiling points are 150.2 °C for hydrogen peroxide and 111 °C for sodium hypochlorite.

Both carry the GHS signal word Danger.

On CompoundList, 729 suppliers list hydrogen peroxide and 555 suppliers list sodium hypochlorite.

Data last updated 7 October 2026

Hydrogen peroxide and sodium hypochlorite compared side by side
Hydrogen peroxide chemical structure, H2O2, CAS 7722-84-1
Hydrogen peroxide
Sodium hypochlorite chemical structure, ClNaO, CAS 7681-52-9
Sodium hypochlorite
Identity
Name in our databaseHydrogen peroxideSodium hypochlorite
CAS number7722-84-17681-52-9
Molecular formulaH2O2ClNaO
Molar mass34.01 g/mol74.44 g/mol
IUPAC namehydrogen peroxidesodium hypochlorite
EC number231-765-0231-668-3
Physical properties
AppearanceColorless liquidGreenish yellow liquid
Melting point-0.4 °C18 °C
Boiling point150.2 °C111 °C
Density1.44 g/cm³ 25 °CRelative density (water = 1): 1.1 (5.5% aqueous solution)
SolubilityIn water, 1 × 10⁺⁶ mgL at 25 °C29.3 g/100 g (0 °C) in water
LogP (octanol/water)Computed from the structure0.02-3.5
Safety (GHS)
Signal wordDangerDanger
Pictograms
GHS03: Oxidiser
GHS05: Corrosive
GHS07: Harmful or irritant
GHS05: Corrosive
GHS09: Hazardous to the environment
Hazard statements
  • H271 May cause fire or explosion, strong oxidiser.
  • H302 Harmful if swallowed.
  • H314 Causes severe skin burns and eye damage.
  • H332 Harmful if inhaled.
  • H314 Causes severe skin burns and eye damage.
  • H318 Causes serious eye damage.
  • H400 Very toxic to aquatic life.
  • H410 Very toxic to aquatic life with long lasting effects.
UN numberUN 2014UN 1791
Uses and classification
Uses and functions
  • Preservatives
  • Bleaching agents
  • Disinfectants
  • Escherichia coli metabolite
  • GABA agent
  • GABA antagonist
  • Bleaching agents
  • Disinfectants
  • Analgesic
  • Anti-inflammatory agent
  • Antiinfective agent
  • Antimicrobial agent
CategoryInorganic chemicals › Oxides and peroxidesInorganic chemicals › Silicates, borates and other salts
HS code284700Hydrogen peroxide, whether or not solidified with urea282890Hypochlorites, commercial calcium hypochlorite, chlorites, hypobromites, other
Market on CompoundList
Suppliers729 suppliers555 suppliers
Supplier countries76 countries, most in India, United States, China70 countries, most in India, United States, China
Price rangeOnly prices set by suppliers who manage their own profilePrice on requestPrice on request

Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.

Hydrogen peroxide
Sodium hypochlorite

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