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Ozone chemical structure, O3, CAS 10028-15-6
2D chemical structure

Key facts

What buyers check first

Appearance
Colorless gas, dark blue liq, blue-black crystals
Melting point
-2 ยฐC
Boiling point
-111.9 ยฐC
Density
GAS: 2.144 G/L @ 0 ยฐC, LIQ: 1.614 G/L @ -195.4 ยฐC
Solubility
49 CC/100 CC WATER AT 0 ยฐC, SOL IN ALKALINE SOLVENTS, OILS
HS code
285390
Category
Oxides and peroxides
UN number
UN 1955
Illustrative photo, a small gas cylinder with a regulator in a lab on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Ozone?

Plain description, key identifiers and synonyms

Ozone is an elemental molecule with formula O3. An explosive, pale blue gas (b.p. 112C) that has a characteristic, pungent odour, it is continuously produced in the upper atmosphere by the action of solar ultraviolet radiation on atmospheric oxygen. It is an antimicrobial agent used in the production of bottled water, as well as in the treatment of meat, poultry and other foodstuffs. It has a role as a mutagen, a tracer, an antiseptic drug, a disinfectant, an electrophilic reagent, an oxidising agent and a member of greenhouse gas. It is a gas molecular entity, an elemental molecule, a member of reactive oxygen species and a triatomic oxygen.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ozone
CAS number
10028-15-6 CAS number cross-checked
EC numbers
233-069-2, 629-936-3
Molecular formula
O3
UNII
66H7ZZK23N
INCI name
OZONE
InChIKey
CBENFWSGALASAD-UHFFFAOYSA-N
InChI
InChI=1S/O3/c1-3-2
SMILES (canonical and isomeric)
[O-][O+]=O

Synonyms

  • Triatomic oxygen
  • Ozon
  • Ozone heavy work
  • ozono
  • trioxygen
  • Oxygen, mol (O3)
  • trioxygene
  • Low Level Ozone
  • Level Ozone, Low
  • Ozone, Low Level
  • Ozone, Tropospheric
  • Level Ozone, Ground
  • Ozone, Ground Level
  • Ground Level Ozone
  • Trisauerstoff
  • [OO2]

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless gas, dark blue liq, blue-black crystalsexp.
Odour
CHARACTERISTIC ODOR IN CONCN LESS THAN 2 PPMexp.
Melting point
-2 ยฐCexp.
Boiling point
-111.9 ยฐCexp.
Density
GAS: 2.144 G/L @ 0 ยฐC, LIQ: 1.614 G/L @ -195.4 ยฐCexp.
Solubility
49 CC/100 CC WATER AT 0 ยฐC, SOL IN ALKALINE SOLVENTS, OILSexp.
Vapour pressure
41257 mmHg at 10.4 ยฐFexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
48.00 g/molcalc.
Exact mass
47.9847 Dacalc.
LogP (octanol/water)
-1.12calc.
Topological polar surface area
51.43 ร…ยฒcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS03: Oxidiser
Oxidiser
GHS05: Corrosive
Corrosive
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H270May cause or intensify fire, oxidiser.
  • H314Causes severe skin burns and eye damage.
  • H315Causes skin irritation.
  • H318Causes serious eye damage.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H335May cause respiratory irritation.
  • H341Suspected of causing genetic defects.
  • H372Causes damage to organs through prolonged or repeated exposure.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (34)
  • P203Obtain, read and follow all safety instructions before use.
  • P220Keep away from clothing and other combustible materials.
  • P244Keep valves and fittings free from oil and grease.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P370 + P376In case of fire: Stop leak if safe to do so.
  • P391Collect spillage.
  • P403Store in a well-ventilated place.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1955

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Ozone suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 14 suppliers
14 of 14 offers
  • India ManufacturerUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
    View
  • China, Jinan ManufacturerUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • United States, Charlotte ManufacturerUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • United States, San DiegoUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • United States, San DiegoUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • France, OrleansUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • United States, AustinUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • Spain, BarcelonaUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • China, BeijingUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
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  • China, HangzhouUnclaimed profile
    OzoneGrade, purity and minimum order on request
    Price on request
    View

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

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Ozone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

As disinfectant for air and water by virtue of its oxidizing power. For bleaching waxes, textiles, oils. In organic syntheses.

Ozonolysis of unsaturated fatty acids to pelargonic acid, azelaic acid & to other acids, oxidation of furnace carbon black for ink black manufacture, catalyst in prodn of peroxyacetic acid, water treatment for taste & odor control, mold & bacteria inhibitor in cold storage.

Used as an oxidizing agent in the organic chemical industry (eg, production of azelaic acid), as a disinfectant for food in cold storage rooms, ... for bleaching ... flour, paper pulp, starch, and sugar, for aging liquor and wood, for processing certain perfumes, vanillin, and camphor, in treating industrial wastes, in the rapid drying of varnishes and printing inks, and in the deodorizing of feathers.

Deodorization of air and sewage gases, ... production of peroxides, bactericide... Steroid hormones, removal of chlorine from nitric acid, oxidation of phenols and cyanides.

Industrial uses: Oxidizing agent.

Cosmetic ingredient, INCI name OZONE(oral care)

Pharmacological actions

  • Oxidants, Photochemical

Roles

  • Lewis acid
  • acceptor
  • acid
  • aetiopathogenetic role
  • antiinfective agent
  • antimicrobial agent
  • antiseptic drug
  • antiviral agent
  • cardiovascular drug
  • disinfectant
  • electrophilic reagent
  • genotoxin
  • greenhouse gas
  • hypoglycemic agent
  • mutagen
  • oxidising agent
  • pharmaceutical
  • reagent
  • tracer

Functional uses

  • Biocide
  • Pharmaceutical

Cosmetic functions

  • Oral care

How it is made

In the lab ozone is prepd by passing dry air between two plate electrodes connected to an alternating current source of several thousand volts. The reaction is reversible, & after a little ozone has been produced it is decr at the same rate as it is generated. Obtained in pure form by cooling ozonized air to -180 ยฐc when it separates as a dark blue liq.

Commercial mixt containing up to 2% ozone are produced by electronic irradiation of air. It is usually manufacture on the spot, as it is too expensive to ship. Tonnage quantities are used.

Ozone is prepared by the heating of silver difluoride in a dilute aqueous acid

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Ozone is traded under.

HS 2853.90Indicative HS code

Phosphides, whether or not chemically defined, excluding ferrophosphorus, other, other

World exports in 2024
$2.45B
โˆ’33.6% vs 2023, imports $816M
2019 to 2024
Top exporters
  1. China68.4%
  2. Israel8.1%
  3. United States4.9%
Top importers
  1. United States19.3%
  2. Japan17.9%
  3. China13.4%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Ozone is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Ozone, based on the data on this page

What is Ozone?

Ozone is an elemental molecule with formula O3. An explosive, pale blue gas (b.p. 112C) that has a characteristic, pungent odour, it is continuously produced in the upper atmosphere by the action of solar ultraviolet radiation on atmospheric oxygen.

What is the CAS number of Ozone?

The CAS registry number of Ozone is 10028-15-6.

What is the molecular formula and weight of Ozone?

The molecular formula of Ozone is O3 and its molar mass is 48.00 g/mol.

What is Ozone used for?

As disinfectant for air and water by virtue of its oxidizing power. For bleaching waxes, textiles, oils. In organic syntheses.

Is Ozone hazardous?

Ozone carries the GHS signal word "Danger". Main hazards: may cause or intensify fire, oxidiser, causes severe skin burns and eye damage, causes skin irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Ozone?

Ozone is usually classified under HS code 285390 (Phosphides, whether or not chemically defined, excluding ferrophosphorus, otherโ€ฆ). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Ozone?

CompoundList lists 14 suppliers of Ozone in United States, China, Spain, France and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Ozone in India?

1 supplier in India list Ozone on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Ozone?

Suppliers quote Ozone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Ozone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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