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Silicates, borates and other salts

Calcium iodate

Also known as Lautarite, calcium, diiodate, Autarite

CAS 7789-80-2Formula CaI2O6Molar mass 389.88 g/molEC 232-191-3
GHS signal word: Danger. Pictograms: Oxidiser, Corrosive, Harmful or irritant 46 suppliers listed
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Calcium iodate chemical structure, CaI2O6, CAS 7789-80-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Monoclinic-prismatic crystals
Melting point
540 °C
Density
4.519 @ 15 °C/4 °C
Solubility
SOLUBILITY IN COLD WATER: 0.20 G/100 CC AT 15 °C, SOLUBILITY IN HOT WATER: 0.67 G/100 CC…
HS code
282990
Category
Silicates, borates and other salts
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Calcium iodate?

Plain description, key identifiers and synonyms

Calcium iodate is a chemical substance with the molecular formula CaI2O6 and a molar mass of 389.88 g/mol. Its CAS registry number is 7789-80-2. The IUPAC name is calcium diiodate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
calcium diiodate
CAS number
7789-80-2 CAS number cross-checkedOther or deprecated CAS: 40563-56-2
EC number
232-191-3
Molecular formula
CaI2O6
UNII
L8MN4Y57BR
InChIKey
RBLVAPCXDSLCIJ-UHFFFAOYSA-N
InChI
InChI=1S/Ca.2IO3/c;2*2-1(3)4/q+2;2*-1
SMILES (canonical and isomeric)
[O-]I(=O)=O.[O-]I(=O)=O.[Ca+2]

Synonyms

  • Lautarite
  • calcium, diiodate
  • Autarite
  • Iodic acid, calcium salt
  • Calcium iodate (Ca(IO3)2)
  • Iodic acid (HIO3), calcium salt
  • CaI2O6
  • Iodic acid calcium salt

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
Monoclinic-prismatic crystalsexp.
Odour
ODORLESSexp.
Melting point
540 °Cexp.
Density
4.519 @ 15 °C/4 °Cexp.
Solubility
SOLUBILITY IN COLD WATER: 0.20 G/100 CC AT 15 °C, SOLUBILITY IN HOT WATER: 0.67 G/100 CC AT 90 °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
389.88 g/molcalc.
Exact mass
389.741 Dacalc.
LogP (octanol/water)
-13.51calc.
Topological polar surface area
138.4 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

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
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H272May intensify fire, oxidiser.
  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (28)
  • 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.
  • 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.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • 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 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • 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

Calcium iodate suppliers

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

All 46 suppliers
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Where suppliers are based

46 suppliers in 15 countries

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Calcium iodate price

Indicative price range per kg from live supplier offers

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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

To improve properties of yeast-leavened bakery products, nutritional source of iodine in foods and feedstuffs.

Antiseptic (Hexahydrate).

In deodorant, mouth washes, food additive, dough conditioner (up to 0.0075 ppb of flour used).

Mainly used in animal and fowl feeds.

Functional uses

  • Filler
  • Flavouring and nutrient
  • Food preservative
  • Processing aids not otherwise specified

How it is made

Prepared by passing chlorine into a hot soln of lime in which iodine has been dissolved: Bahl, Singh, J Indian Chem Soc 17, 397 (1940).

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 Calcium iodate is traded under.

HS 2829.90Indicative HS code

Chlorates and perchlorates, bromates and perbromates, iodates and periodates, other

World exports in 2024
$249M
+20.9% vs 2023, imports $241M
2019 to 2024
Top exporters
  1. United States15.9%
  2. Brazil12.5%
  3. Belgium12.5%
Top importers
  1. Belgium10.3%
  2. South Korea10.0%
  3. Turkey7.0%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

Quick answers about Calcium iodate, based on the data on this page

What is Calcium iodate?

Calcium iodate is a chemical substance with the molecular formula CaI2O6 and a molar mass of 389.88 g/mol. Its CAS registry number is 7789-80-2. The IUPAC name is calcium diiodate.

What is the CAS number of Calcium iodate?

The CAS registry number of Calcium iodate is 7789-80-2. Other or deprecated CAS numbers: 40563-56-2.

What is the molecular formula and weight of Calcium iodate?

The molecular formula of Calcium iodate is CaI2O6 and its molar mass is 389.88 g/mol.

What is Calcium iodate used for?

To improve properties of yeast-leavened bakery products, nutritional source of iodine in foods and feedstuffs. Antiseptic (Hexahydrate). In deodorant, mouth washes, food additive, dough conditioner (up to 0.0075 ppb of flour used). Mainly used in animal and fowl feeds.

Is Calcium iodate hazardous?

Calcium iodate carries the GHS signal word "Danger". Main hazards: may intensify fire, oxidiser, harmful if swallowed, 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 Calcium iodate?

Calcium iodate is usually classified under HS code 282990 (Chlorates and perchlorates, bromates and perbromates, iodates and periodates, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Calcium iodate?

CompoundList lists 46 suppliers of Calcium iodate in India, China, United States, Japan and 11 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Calcium iodate in India?

18 suppliers in India list Calcium iodate on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Calcium iodate?

Suppliers quote Calcium iodate 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 Calcium iodate

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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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