Thulium Chloride Heptahydrate

CAS #:

Linear Formula:

TmCl3 • 7H2O

MDL Number:


EC No.:



(2N) 99% Thulium(III) Chloride Heptahydrate
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(3N) 99.9% Thulium(III) Chloride Heptahydrate
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(4N) 99.99% Thulium(III) Chloride Heptahydrate
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(5N) 99.999% Thulium(III) Chloride Heptahydrate
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Thulium Chloride Heptahydrate Properties (Theoretical)

Compound Formula H14Cl3O7Tm
Molecular Weight 401.389
Appearance Solid
Melting Point N/A
Boiling Point N/A
Density N/A
Solubility in H2O Soluble in H2O and EtOH
Exact Mass 399.915 g/mol
Monoisotopic Mass 399.915 g/mol

Thulium Chloride Heptahydrate Health & Safety Information

Signal Word Warning
Hazard Statements H315-H319-H335
Hazard Codes Xi
Precautionary Statements P261-P305 + P351 + P338
Flash Point Not applicable
Risk Codes 36/37/38
Safety Statements 26-36
RTECS Number XP0525000
Transport Information NONH for all modes of transport
WGK Germany 3

About Thulium Chloride Heptahydrate

High purity Thulium Chloride HeptahydrateChloride IonThulium(III) Chloride Heptahydrate is an excellent water soluble crystalline Thulium source for uses compatible with chlorides. Chloride compounds can conduct electricity when fused or dissolved in water. Chloride materials can be decomposed by electrolysis to chlorine gas and the metal. They are formed through various chlorination processes whereby at least one chlorine anion (Cl-) is covalently bonded to the relevant metal or cation. Ultra high purity and proprietary formulations can be prepared. The chloride ion controls fluid equilibrium and pH levels in metabolic systems. They can form either inorganic or organic compounds. Thulium(III) Chloride Heptahydrate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. We also produce Thulium(III) Chloride Solution. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Thulium Chloride Heptahydrate Synonyms

Thulium(III) Chloride Heptahydrate, Thulium(3+) trichloride heptahydrate, Trichlorothulium heptahydrate

Chemical Identifiers

Linear Formula TmCl3 • 7H2O
MDL Number MFCD00149877
EC No. N/A
Beilstein/Reaxys No. N/A
Pubchem CID 25022213
IUPAC Name trichlorothulium; heptahydrate
SMILES O.O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Tm+3]
InchI Identifier InChI=1S/3ClH.7H2O.Tm/h3*1H;7*1H2;/q;;;;;;;;;;+3/p-3

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements


Chlorine is a Block P, Group 17, Period 3 element. Its electron configuration is [Ne]3s23p5. The chlorine atom has a covalent radius of 102±4 pm and its Van der Waals radius is 175 pm. Chlorine ModelIn its elemental form, chlorine is a yellow-green gas. Chlorine is the second lightest halogen after fluorine. It has the third highest electronegativity and the highest electron affinity of all elements, making it a strong oxidizing agent. It is rarely found by itself in nature. Chlorine was discovered and first isolated by Carl Wilhelm Scheele in 1774. It was first recognized as an element by Humphry Davy in 1808.


See more Thulium products. Thulium (atomic symbol: Tm, atomic number: 69) is a Block F, Group 3, Period 6 element with an atomic weight of 168.93421. Thulium Bohr ModelThe number of electrons in each of Thulium's shells is [2, 8, 18, 31, 8, 2] and its electron configuration is [Xe]4f136s2. The thulium atom has a radius of 176 pm and a Van der Waals radius of 227 pm.Elemental Thulium Picture In its elemental form, thulium has a silvery-gray appearance. Thulium is representative of the other lanthanides (rare earths) and similar in chemistry to yttrium. It is the least abundant of the rare earth elements. Thulium emits blue upon excitation, and is used in flat panel screens that depend critically on bright blue emitters. Thulium was discovered and first isolated by Per Teodor Cleve in 1879. It is named after "Thule," which is the ancient name of Scandinavia.

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