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Sulfates and sulfur salts

Persulfuric acid

Also known as Sulfomonoperacid, Peroxomonosulfuric acid, CARO'S ACID

CAS 7722-86-3Formula O6SMolar mass 128.06 g/molEC 231-766-6
GHS signal word: Danger. Pictograms: Corrosive 1 supplier listed
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Persulfuric acid chemical structure, O6S, CAS 7722-86-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7722-86-3
Formula
O6S
Molar mass
128.06 g/mol
EC number
231-766-6
HS code
283340
Category
Sulfates and sulfur salts

What is Persulfuric acid?

Plain description, key identifiers and synonyms

Persulfuric acid is a chemical substance with the molecular formula O6S and a molar mass of 128.06 g/mol. Its CAS registry number is 7722-86-3. The IUPAC name is tetraoxathiolane 5,5-dioxide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
tetraoxathiolane 5,5-dioxide
CAS number
7722-86-3
EC numbers
231-766-6, 931-277-4
Molecular formula
O6S
UNII
UNM59H6037
InChIKey
DAFQZPUISLXFBF-UHFFFAOYSA-N
InChI
InChI=1S/O6S/c1-7(2)5-3-4-6-7
SMILES (canonical and isomeric)
O=S1(=O)OOOO1

Synonyms

  • Sulfomonoperacid
  • Peroxomonosulfuric acid
  • CARO'S ACID

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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
128.06 g/molcalc.
Exact mass
127.9416 Dacalc.
LogP (octanol/water)
-0.94calc.
Topological polar surface area
71.06 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=S1(=O)OOOO1

O=S1(=O)OOOO1

1 ring, 7 atoms. This chemical is the scaffold itself.

No other chemical in our database has this scaffold.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive

Hazard statements

  • H314Causes severe skin burns and eye damage.
Precautionary statements (12)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • 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 + 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.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Persulfuric acid suppliers

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Where suppliers are based

1 supplier in 1 country

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Persulfuric acid price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Persulfuric acid is traded under.

HS 2833.40Indicative HS code

Peroxosulphates (persulphates)

World exports in 2024
$129M
−5.6% vs 2023, imports $137M
2019 to 2024
Top exporters
  1. United States29.1%
  2. China27.4%
  3. Japan12.6%
Top importers
  1. Italy12.3%
  2. South Korea9.3%
  3. United States7.8%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Persulfuric acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Persulfuric acid, based on the data on this page

What is Persulfuric acid?

Persulfuric acid is a chemical substance with the molecular formula O6S and a molar mass of 128.06 g/mol. Its CAS registry number is 7722-86-3. The IUPAC name is tetraoxathiolane 5,5-dioxide.

What is the CAS number of Persulfuric acid?

The CAS registry number of Persulfuric acid is 7722-86-3.

What is the molecular formula and weight of Persulfuric acid?

The molecular formula of Persulfuric acid is O6S and its molar mass is 128.06 g/mol.

Is Persulfuric acid hazardous?

Persulfuric acid carries the GHS signal word "Danger". Main hazards: causes severe skin burns and eye damage. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Persulfuric acid?

Persulfuric acid is usually classified under HS code 283340 (Peroxosulphates (persulphates)). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Persulfuric acid?

CompoundList lists 1 supplier of Persulfuric acid in United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Persulfuric acid?

Suppliers quote Persulfuric acid 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 Persulfuric acid

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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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