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Rare earth compounds

Cerous iodide

Also known as Cerium triiodide, Cerium (III) iodide, Cerium iodide (CeI3)

CAS 7790-87-6Formula CeI3Molar mass 520.83 g/molEC 232-228-3
GHS signal word: Warning. Pictograms: Harmful or irritant 2 suppliers listed
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Cerous iodide chemical structure, CeI3, CAS 7790-87-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
7790-87-6
Formula
CeI3
Molar mass
520.83 g/mol
EC number
232-228-3
HS code
284610
Category
Rare earth compounds

What is Cerous iodide?

Plain description, key identifiers and synonyms

Cerous iodide is a chemical substance with the molecular formula CeI3 and a molar mass of 520.83 g/mol. Its CAS registry number is 7790-87-6. The IUPAC name is triiodocerium.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
triiodocerium
CAS number
7790-87-6 CAS number cross-checked
EC number
232-228-3
Molecular formula
CeI3
UNII
Z422836G9D
InChIKey
ZEDZJUDTPVFRNB-UHFFFAOYSA-K
InChI
InChI=1S/Ce.3HI/h;3*1H/q+3;;;/p-3
SMILES (canonical and isomeric)
I[Ce](I)I

Synonyms

  • Cerium triiodide
  • Cerium (III) iodide
  • Cerium iodide (CeI3)
  • cerium(III) iodide
  • Cerium(III) iodide, ultra dry
  • Cerium iodide
  • Cerium(III) iodide, anhydrous, powder, >=99.95%
  • Cerium(III) iodide, anhydrous (99.99%-Ce) (REO)
  • Cerium (III) iodide, ultra dry, powder, ampoule, 99.9% trace metals grade
  • Cerium(III) iodide, anhydrous, beads, -10 mesh, 99.99% trace metals basis

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
520.83 g/molcalc.
Exact mass
520.6189 Dacalc.
LogP (octanol/water)
2.66calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
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
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • 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.

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

Cerous iodide suppliers

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All 2 suppliers

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Where suppliers are based

2 suppliers in 2 countries

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Cerous iodide 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

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

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2846.10Indicative HS code

Cerium compounds

World exports in 2024
$149M
−0.6% vs 2023, imports $155M
2019 to 2024
Top exporters
  1. Japan48.5%
  2. France * partner reported29.2%
  3. China10.6%
Top importers
  1. Japan30.4%
  2. South Korea16.2%
  3. United States12.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Cerous iodide, based on the data on this page

Is Cerous iodide hazardous?

Cerous iodide carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

Guides for buyers

Practical guides that help when you source, ship or handle Cerous iodide

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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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