CAS No. 7790-86-5

Chemical Identifiers

Linear Formula CeCl3
Pubchem CID 161282
MDL Number MFCD00010929
EC No. 232-227-8
IUPAC Name cerium(3+)trichloride
Beilstein/Reaxys No. N/A
SMILES [Cl-].[Cl-].[Cl-].[Ce+3]
InchI Identifier InChI=1S/Ce.3ClH/h;3*1H/q+3;;;/p-3

Health & Safety Information

Signal Word N/A
Hazard Statements H315-H319-H335-H303
Hazard Codes Xi
Precautionary Statements P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a
Flash Point Not applicable
Risk Codes 36/37/38
Safety Statements 26-36
RTECS Number FK5075000
Transport Information NONH
WGK Germany 2
GHS Pictograms

View and Print SDS


Date Accessed: 04/19/2024
Date Revised: 01/15/2022


Product Identifiers: All applicable American Elements product codes for CAS #7790-86-5

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
10884 Weyburn Ave.
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America +1 800-424-9300
International +1 703-527-3887


2.1 Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Skin irritation (Category 2), H315
Eye irritation (Category 2A), H319
Specific target organ toxicity - single exposure (Category 3), Respiratory system, H335

2.2 GHS Label elements, including precautionary statements

Exclamation Mark - GHS07

Signal word Warning
Hazard statement(s)
H315 Causes skin irritation.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
Precautionary statement(s)
P261 Avoid breathing dust/ fume/ gas/ mist/ Vapors/ spray.
P264 Wash skin thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/ eye protection/ face protection.
P302 + P352 IF ON SKIN: Wash with plenty of soap and water.
P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position
comfortable for breathing.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove
P312 Call a POISON CENTER or doctor/ physician if you feel unwell.
P321 Specific treatment (see supplemental first aid instructions on this label).
P332 + P313 If skin irritation occurs: Get medical advice/ attention.
P337 + P313 If eye irritation persists: Get medical advice/ attention.
P362 Take off contaminated clothing and wash before reuse.
P403 + P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/ container to an approved waste disposal plant.
2.3 Hazards not otherwise classified (HNOC) or not covered by GHS - none


Synonyms : Cerous chloride
Formula : CeCl3
Molecular weight : 246.48 g/mol
CAS-No. : 7790-86-5
EC-No. : 232-227-8
Hazardous components
Component Classification Concentration
Cerium trichloride
Skin Irrit. 2; Eye Irrit. 2A;
STOT SE 3; H315, H319,


4.1 Description of first aid measures
General advice
Consult a physician. Show this safety data sheet to the doctor in attendance.Move out of dangerous area.
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.
In case of skin contact
Wash off with soap and plenty of water. Consult a physician.
In case of eye contact
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available


5.1 Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
5.2 Special hazards arising from the substance or mixture
Hydrogen chloride gas, cerium oxides
5.3 Advice for firefighters
Wear self-contained breathing apparatus for firefighting if necessary.
5.4 Further information
No data available


6.1 Personal precautions, protective equipment and emergency procedures
Use personal protective equipment. Avoid dust formation. Avoid breathing Vapors, mist or gas. Ensure adequate
ventilation. Evacuate personnel to safe areas. Avoid breathing dust.
For personal protection see section 8.
6.2 Environmental precautions
Do not let product enter drains.
6.3 Methods and materials for containment and cleaning up
Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for
6.4 Reference to other sections
For disposal see section 13.


7.1 Precautions for safe handling
Avoid contact with skin and eyes. Avoid formation of dust and aerosols.
Provide appropriate exhaust ventilation at places where dust is formed.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Keep container tightly closed in a dry and well-ventilated place.
Hygroscopic. Handle and store under inert gas.
7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated


8.1 Control parameters
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
8.2 Exposure controls
Appropriate engineering controls
Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of
Personal protective equipment
Eye/face protection
Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested and approved
under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without
touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after
use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
Body Protection
impervious clothing, The type of protective equipment must be selected according to the concentration and
amount of the dangerous substance at the specific workplace.
Respiratory protection
For nuisance exposures use type P95 (US) or type P1 (EU EN 143) particle respirator.For higher level
protection use type OV/AG/P99 (US) or type ABEK-P2 (EU EN 143) respirator cartridges. Use respirators and
components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Do not let product enter drains.


9.1 Information on basic physical and chemical properties
a) Appearance Form: Beads
Colour: white
b) Odor No data available
c) Odor Threshold No data available
d) pH No data available
e) Melting point/freezing
Melting point/range: 848 °C (1,558 °F) - lit.
f) Initial boiling point and
boiling range
No data available
g) Flash point N/A
h) Evaporation rate No data available
i) Flammability (solid, gas) No data available
j) Upper/lower
flammability or
explosive limits
No data available
k) Vapor pressure No data available
l) Vapor density No data available
m) Relative density 3.97 g/mL at 25 °C (77 °F)
n) Water solubility No data available
o) Partition coefficient: noctanol/
No data available
p) Auto-ignition
No data available
q) Decomposition
No data available
r) Viscosity No data available
s) Explosive properties No data available
t) Oxidizing properties No data available
9.2 Other safety information
No data available


10.1 Reactivity
No data available
10.2 Chemical stability
Stable under recommended storage conditions.
10.3 Possibility of hazardous reactions
No data available
10.4 Conditions to avoid
Avoid moisture.
10.5 Incompatible materials
Strong oxidizing agents, Strong acids
10.6 Hazardous decomposition products
Other decomposition products - No data available
In the event of fire: see section 5


11.1 Information on toxicological effects
Acute toxicity
LD50 Oral - Rat - 2,111 mg/kg
Dermal: No data available
No data available
Skin corrosion/irritation
No data available
Serious eye damage/eye irritation
No data available
Respiratory or skin sensitisation
No data available
Germ cell mutagenicity
No data available
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
ACGIH: No component of this product present at levels greater than or equal to 0.1% is identified as a
carcinogen or potential carcinogen by ACGIH.
NTP: No component of this product present at levels greater than or equal to 0.1% is identified as a
known or anticipated carcinogen by NTP.
OSHA: No component of this product present at levels greater than or equal to 0.1% is identified as a
carcinogen or potential carcinogen by OSHA.
Reproductive toxicity
No data available
No data available
Specific target organ toxicity - single exposure
Inhalation - May cause respiratory irritation.
Specific target organ toxicity - repeated exposure
No data available
Aspiration hazard
No data available
Additional Information
RTECS: FK5075000
To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly


12.1 Toxicity
No data available
12.2 Persistence and degradability
No data available
12.3 Bioaccumulative potential
No data available
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
12.6 Other adverse effects
No data available


13.1 Waste treatment methods
Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste
disposal service to dispose of this material.
Contaminated packaging
Dispose of as unused product.


Not dangerous goods
Not dangerous goods
Not dangerous goods


SARA 302 Components
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.
SARA 313 Components
This material does not contain any chemical components with known CAS numbers that exceed the threshold (De
Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards
Acute Health Hazard
Massachusetts Right To Know Components
No components are subject to the Massachusetts Right to Know Act.
Pennsylvania Right To Know Components
Cerium trichloride
Revision Date
New Jersey Right To Know Components
Cerium trichloride
Revision Date
California Prop. 65 Components
This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other
reproductive harm.


Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information in this document is based on the present state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2022 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.


  • Benzotriazole and cerium chloride as corrosion inhibitors for AA2024-T3: An EIS investigation supported by SVET and ToF-SIMS analysis. L. B. Coelho, D. Cossement, M. -G. Olivier. Corrosion Science, Volume 130, January 2018, Pages 177-189.
  • Effect of cerium chloride application on fibroblast and osteoblast proliferation and differentiation. Patrick R. Schmidlin, Alexandre Tchouboukov, Florian J. Wegehaupt, Franz E. Weber. Archives of Oral Biology, Volume 57, Issue 7, July 2012, Pages 892-897.
  • Interactions of NO2 with activated carbons modified with cerium, lanthanum and sodium chlorides. Karifala Kante, Eleni Deliyanni, Teresa J. Bandosz. Journal of Hazardous Materials, Volume 165, Issues 1–3, 15 June 2009, Pages 704-713.
  • Activated coke impregnated with cerium chloride used for elemental mercury removal from simulated flue gas. Shasha Tao, Caiting Li, Xiaopeng Fan, Guangming Zeng, Chunzhen Fan. Chemical Engineering Journal, Volume 210, 1 November 2012, Pages 547-556.
  • Synergistic inhibition of carbon steel corrosion in seawater by cerium chloride and sodium gluconate. Franjo Ivušić, Olga Lahodny-Šarc, Helena Otmačić Ćurković, Vesna Alar. Corrosion Science, Volume 98, September 2015, Pages 88-97.
  • Deconstruction of lignocellulosic biomass with hydrated cerium (III) chloride in water and ethanol. Mehmet K. Akalin, Parthapratim Das, Koray Alper, Kubilay Tekin, Selhan Karagöz. Applied Catalysis A: General, Volume 546, 25 September 2017, Pages 67-78.
  • Difference of EGCg adhesion on cell surface between Staphylococcus aureus and Escherichia coli visualized by electron microscopy after novel indirect staining with cerium chloride. Motokazu Nakayama, Naofumi Shigemune, Takashi Tsugukuni, Hajime Tokuda, Takahisa Miyamoto. Journal of Microbiological Methods, Volume 86, Issue 1, July 2011, Pages 97-103.
  • A novel method for the synthesis of tetrahydrobenzo[a]-xanthen-11-one derivatives using cerium(III) chloride as a highly efficient catalyst. Mazaahir Kidwai, Anwar Jahan, Neeraj Kumar Mishra. Comptes Rendus Chimie, Volume 15, Issue 4, April 2012, Pages 324-330.
  • Application of cerium chloride to improve the acid resistance of dentine. Florian J. Wegehaupt, Beatrice Sener, Thomas Attin, Patrick R. Schmidlin. Archives of Oral Biology, Volume 55, Issue 6, June 2010, Pages 441-446.
  • A SVET study of the inhibitive effects of benzotriazole and cerium chloride solely and combined on an aluminium/copper galvanic coupling model. L. B. Coelho, M. Mouanga, M. -E. Druart, I. Recloux, M. -G. Olivier. Corrosion Science, Volume 110, September 2016, Pages 143-156.
  • Dehydration, hydrolysis and oxidation of cerium chloride heptahydrate in air atmosphere. Shoufeng Xue, Wenyuan Wu, Xue Bian, Yongfu Wu. Journal of Rare Earths, Volume 35, Issue 11, November 2017, Pages 1156-1163.
  • Effect of cerium chloride on corrosion resistance and adhesion of chromate conversion coatings. Pang Lufeng, Zhang Xiao-Lin, Zhang Sheng-Lin, Yao Yu, Li Wei-Wei. Metal Finishing, Volume 109, Issues 1–2, January–February 2011, Pages 20-25.
  • Anti-erosive potential of amine fluoride, cerium chloride and laser irradiation application on dentine. Florian J. Wegehaupt, Beatrice Sener, Thomas Attin, Patrick R. Schmidlin. Archives of Oral Biology, Volume 55, Issue 6, June 2010, Pages 441-446.
  • Study of stereoselectivity of reduction of 18-oxo des-E triterpenoids by sodium borohydride in the presence of cerium chloride. Miroslav Kvasnica, Jan Sarek, Martin Vlk, Milos Budesinsky, Iva Plutnarova. Tetrahedron: Asymmetry, Volume 22, Issue 9, 15 May 2011, Pages 1011-1020.
  • Luminescence, absorption, and Stern–Volmer studies of cerium chloride and nitrate compounds in acidic and neutral aqueous, and non-aqueous solutions. Derick Forcha, Kwame J. Brown, Zerihun Assefa. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Volume 103, 15 February 2013, Pages 90-95.
  • The structure of concentrated aqueous solutions of chromium nitrate and cerium chloride studied by X-ray diffraction and Raman spectroscopy. M. Isabel Cabaço, M. I. de Barros Marques, A. M. Gaspar, M. Alves Marques, M. Margarida Costa. Journal of Molecular Liquids, Volume 136, Issue 3, 15 December 2007, Pages 323-330.