Cerium(III) chloride heptahydrate
Cerium(III) chloride heptahydrate (CAS 18618-55-8) is a hydrated inorganic salt with the linear formula CeCl₃ · 7H₂O and a molecular weight of 372.58 g/mol. This white crystalline solid is primarily utilised as a catalyst and reagent in chemical synthesis and inorganic chemistry applications. Its properties make it valuable in various laboratory research and industrial processes requiring a cerium source.
- IUPAC
- Cerous chloride heptahydrate
- Synonyms
- Cerous chloride heptahydrate

Catalysis
Cerium(III) chloride heptahydrate serves as a catalyst in diverse organic reactions, facilitating transformations that might otherwise require harsher conditions or more complex catalytic systems.
Chemical Synthesis
It acts as a Lewis acid catalyst and a precursor for other cerium compounds, widely employed in organic synthesis for reactions such as alkylations and reductions.
Inorganic Chemistry
This compound is a fundamental source of cerium ions for the preparation of various inorganic materials and coordination complexes in research settings.
| Molecular weight | 372.58 |
|---|---|
| Linear formula | CeCl3 · 7H2O |
| Assay | 99.9% trace metals basis |
| Density | ~3.94 g/mL at 25 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cerium(III) chloride heptahydrate used for?
+
Cerium(III) chloride heptahydrate is primarily used as a catalyst in organic synthesis, as a Lewis acid, and as a precursor for other cerium compounds in inorganic chemistry research.
What is the CAS number and formula for Cerium(III) chloride heptahydrate?
+
The CAS number is 18618-55-8 and the linear formula is CeCl₃ · 7H₂O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Cerium(III) chloride heptahydrate with an assay of 99.9% trace metals basis. We do not represent this product as USP, BP, or EP grade.
How should Cerium(III) chloride heptahydrate be handled?
+
Handle with care. This compound is a warning hazard, causing skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Use a dust mask type N95, eyeshields, and gloves. Ensure adequate ventilation and avoid breathing dust. Wash hands thoroughly after handling.
Can you export Cerium(III) chloride heptahydrate?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Cerium(III) chloride heptahydrate.
How do I get a quote or sample?
+
To request a quote or a sample of Cerium(III) chloride heptahydrate, please contact our sales team through the website or by phone.
▶ Related products

Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis