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hydrogen peroxide
Sign in to saveAlso known as H2O2, dioxidane, dihydrogen dioxide, peroxide
chemical compound
OverviewAI-generated
Hydrogen peroxide is a chemical compound with the formula H₂O₂. It has a molecular mass of 34.005 and a density of 1.39. The substance exhibits a melting point of -0.432 and a boiling point of 150.2. Its vapor pressure is 5, and it possesses an ionization energy of 10.54. The pKa value is 11.75, while the standard enthalpy of formation is -136.11 and the standard molar entropy is 109.6.
Physical properties include a kinematic viscosity of 1.245 and an electric dipole moment of 1.573. The compound has an xlogp of -0.9 and a topological polar surface area of 40.5. It contains two hydrogen bond donors and two hydrogen bond acceptors, with a charge of 0. Safety data indicates a time-weighted average exposure limit of 1.4 and an immediately dangerous to life or health level of 104.25.
Synthesized by Vinony from 31 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
In the Vinony graph
Vinony's link graph records 2,313 inbound references to hydrogen peroxide, and connects out to arsenic trihydride, benzoyl peroxide and hair greying.
It is catalogued under topics including 1894 introductions, Antiseptics and Bleaches.
Vinony links it to 74 Wikipedia language editions.
Chemical data
- Formula
- H2O2
- Molecular weight
- 34.015 g/mol
- IUPAC name
- hydrogen peroxide
- SMILES
- OO
- InChIKey
- MHAJPDPJQMAIIY-UHFFFAOYSA-N
- XLogP
- -0.9
- Polar surface area
- 40.5 Ų
- H-bond donors
- 2
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Drug data · ChEMBL
- Max clinical phase
- Approved
- Molecule type
- Small molecule
- First approval
- 2017
- Admin. routes
- topical
- Indications
- infection, injury, tooth disease, dental caries
via ChEMBL · EBI
Research
119,081 papers- Hydrogen peroxide.ReviewIARC monographs on the evaluation of carcinogenic risks to humans · 1999
- Detection of hydrogen peroxide.ReviewAnalytical sciences : the international journal of the Japan Society for Analytical Chemistry · 2022Uematsu KDOI: 10.1007/s44211-022-00052-3
- Hydrogen peroxide (H(2)O(2)): a review of its use in surgery.ReviewWiener medizinische Wochenschrift (1946) · 2019Urban MV, Rath T, Radtke CDOI: 10.1007/s10354-017-0610-2
- Hydrogen peroxide signalling.ReviewCurrent opinion in plant biology · 2002Neill S, Desikan R, Hancock JDOI: 10.1016/s1369-5266(02)00282-0
- Hydrogen Peroxide: A Ubiquitous Component of Beverages and Food.ReviewInternational journal of molecular sciences · 2025Sadowska-Bartosz I, Bartosz GDOI: 10.3390/ijms26073397
- Hydrogen peroxide mouthwash.British dental journal · 2020Saravanamuttu RDOI: 10.1038/s41415-020-1643-2
- Hydrogen peroxide 40% (Eskata) for seborrheic keratoses.ReviewThe Medical letter on drugs and therapeutics · 2018
- [The hydrogen peroxide paradox].ReviewOrvosi hetilap · 2006Góth L
via PubMed
Wikidata facts
- Subclass of
- oxidizing agent
- Mass
- 34.005
Show 21 more facts
- NIOSH Pocket Guide ID
- 0335
- Commons category
- Hydrogen peroxide
- topic's main category
- Category:Hydrogen peroxide
- canonical SMILES
- OO
- chemical formula
- H₂O₂
- density
- 1.39
- immediately dangerous to life or health
- 104.25
- melting point
- -0.43
- boiling point
- 150.2
- vapor pressure
- 5
- ionization energy
- 10.54
- time-weighted average exposure limit
- 1.4
- pKa
- 11.75
- kinematic viscosity
- 1.245
- standard enthalpy of formation
- -136.11
- found in taxon
- Coffea arabica
- subject has role
- primary metabolite
- medical condition treated
- seborrheic keratosis
- standard molar entropy
- 109.6
- has characteristic
- bitterness
- electric dipole moment
- 1.573
Sources (11)
via Wikidata · CC0
~40 min read
Encyclopedic overview
Names
IUPAC name Hydrogen peroxide
Excerpted from Wikipedia’s “hydrogen peroxide” article, available under the CC BY-SA 4.0 licence.
Gallery (13)
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