CompoundList
Sign in
Inorganic acids

Iodic acid

Also known as Monoiodic acid, Iodic acid (HIO3), Iodsaeure

CAS 7782-68-5Formula HIO3Molar mass 175.91 g/molEC 231-962-1
GHS signal word: Danger. Pictograms: Oxidiser, Corrosive 19 suppliers listed
Get quotes Compare 19 suppliers
Iodic acid chemical structure, HIO3, CAS 7782-68-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7782-68-5
Formula
HIO3
Physical form
Powder
Density
4.629 @25 °C
HS code
281119
Category
Inorganic acids
Illustrative photo, drums, an IBC tote and sacks in a chemical warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Iodic acid?

Plain description, key identifiers and synonyms

Iodic acid is an iodine oxoacid. It has a role as an astringent. It is a conjugate acid of an iodate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
iodic acid
CAS number
7782-68-5 CAS number cross-checkedOther or deprecated CAS: 25659-31-8
EC numbers
231-962-1, 247-168-3
Molecular formula
HIO3
UNII
6U8J18JSBM
MDL number
MFCD00011348
InChIKey
DWLZEPILACINAS-UHFFFAOYSA-N
InChI
InChI=1S/HIO3/c2-1(3)4/h2H
SMILES (canonical and isomeric)
OI(=O)=O

Synonyms

  • Monoiodic acid
  • Iodic acid (HIO3)
  • Iodsaeure
  • trioxoiodic acid
  • trioxidoiodine(.)
  • hydrogen trioxoiodate
  • hydroxidodioxidoiodine
  • HOIO2
  • hydroxy-lambda(5)-iodanedione
  • [IO2(OH)]
  • hydrogen iodate
  • Hydrogen Iodate, Hydrogen Iodate (HIO3)
  • hydrogen oxygen iodide
  • IODIC ACID, ACS
  • IODIC ACID, HIO3
  • H (I O3)
  • Iodic acid (HIO3), lead(2+) salt
  • Iodic acid, >=99.5% (iodometric)
  • Iodic acid, ACS reagent, >=99.5%
  • Iodic acid (HIO3), lead(2+) salt (2:1)
  • Iodic acid, puriss. p.a., ACS reagent, >=99.5% (RT)

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

Physical form
Powderexp.
Density
4.629 @25 °Cexp.

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
175.91 g/molcalc.
Exact mass
175.897 Dacalc.
LogP (octanol/water)
-5.93calc.
Topological polar surface area
66.35 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
4calc.
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

Hazard statements

  • H272May intensify fire, oxidiser.
  • H314Causes severe skin burns and eye damage.
Precautionary statements (15)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P220Keep away from clothing and other combustible materials.
  • 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.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • 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

Iodic acid suppliers

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

All 19 suppliers
19 of 19 offers

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.

Where suppliers are based

19 suppliers in 7 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Iodic 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Industrial uses: Flavoring and nutrient.

Roles

  • astringent
  • pharmaceutical

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 Iodic acid is traded under.

HS 2811.19Indicative HS code

Inorganic acids, other than hydrogen fluoride

World exports in 2024
$494M
+6.5% vs 2023, imports $458M
2019 to 2024
Top exporters
  1. China24.9%
  2. Israel16.0%
  3. Jordan * partner reported11.7%
Top importers
  1. China29.3%
  2. United States16.2%
  3. Germany7.0%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Iodic acid?

Iodic acid is an iodine oxoacid. It has a role as an astringent. It is a conjugate acid of an iodate.

What is the CAS number of Iodic acid?

The CAS registry number of Iodic acid is 7782-68-5. Other or deprecated CAS numbers: 25659-31-8.

What is the molecular formula and weight of Iodic acid?

The molecular formula of Iodic acid is HIO3 and its molar mass is 175.91 g/mol.

What is Iodic acid used for?

Industrial uses: Flavoring and nutrient.

Is Iodic acid hazardous?

Iodic acid carries the GHS signal word "Danger". Main hazards: may intensify fire, oxidiser, 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 Iodic acid?

Iodic acid is usually classified under HS code 281119 (II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Iodic acid?

CompoundList lists 19 suppliers of Iodic acid in India, China, Chile, Japan and 3 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Iodic acid in India?

6 suppliers in India list Iodic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Iodic acid?

Suppliers quote Iodic 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 Iodic acid

Get quotes for Iodic acid

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Iodic acid
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Iodic acid with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/iodic-acid-7782-68-5" title="Iodic acid structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Inorganic acids or HS code 281119

19 suppliers
Free quotes, contact stays private
Get quotes