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THULIUM

THULIUM Suppliers list
Company Name: Mainchem Co., Ltd.
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Products Intro: Product Name:THULIUM
CAS:7440-30-4
Company Name: J & K SCIENTIFIC LTD.  
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Products Intro: Product Name:Thulium powder (99.9% REO)
CAS:7440-30-4
Purity:(99.9% REO) Package:1g;5g
Company Name: Meryer (Shanghai) Chemical Technology Co., Ltd.  
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Products Intro: Product Name:ThuliuM, powder, ca. 40 Mesh
CAS:7440-30-4
Purity:99.9% Remarks:31778
Company Name: Alfa Aesar  
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Products Intro: Product Name:ThuliuM powder, -40 Mesh, 99.9% (REO)
CAS:7440-30-4
Package:1g Remarks:044168
Company Name: BeiJing Hwrk Chemicals Limted  
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Products Intro: Product Name:Thulium
CAS:7440-30-4
Purity:99.99% Package:1300RMB/25g Remarks:HWG17698
THULIUM Basic information
Product Name:THULIUM
Synonyms:THULIUM PLASMA EMISSION SPECTROSCOPY STANDARD;THULIUM PLASMA EMISSION STANDARD;Thulium foil25x25mm;Thulium foil, 0.1mm (0.004 in.) thick;Thulium plasma standard solution, Tm 10000μg/mL;Thulium pieces, Sublimed dendritic;Thulium plasma standard solution, Tm 1000μg/mL;Thulium foil, 0.25mm (0.01 in.) thick
CAS:7440-30-4
MF:Tm
MW:168.93
EINECS:231-140-2
Product Categories:Inorganics;ThuliumMetal and Ceramic Science;Catalysis and Inorganic Chemistry;Chemical Synthesis;Metals;Thulium;metal or element
Mol File:7440-30-4.mol
THULIUM Structure
THULIUM Chemical Properties
Melting point 1545 °C(lit.)
Boiling point 1950 °C(lit.)
density 9.332 g/mL at 25 °C(lit.)
form powder
color Silver-gray
resistivity90 μΩ-cm, 20°C
Water Solubility slowly reacts with H2O; soluble in dilute acids [HAW93]
Sensitive Air & Moisture Sensitive
Merck 13,9471
CAS DataBase Reference7440-30-4(CAS DataBase Reference)
Safety Information
Hazard Codes F,Xi,C
Risk Statements 15-17-36/37-34-23/24/25
Safety Statements 26-36-43-45-36/37/39-27
RIDADR UN 3089 4.1/PG 2
WGK Germany 3
10
TSCA Yes
HazardClass 4.1
PackingGroup II
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
THULIUM Usage And Synthesis
Chemical Propertiesgrey chips
HistoryDiscovered in 1879 by Cleve. Thulium occurs in small quantities along with other rare earths in a number of minerals. It is obtained commercially from monazite, which contains about 0.007% of the element. Thulium is the least abundant of the rare-earth elements, but with new sources recently discovered, it is now considered to be about as rare as silver, gold, or cadmium. Ion-exchange and solvent extraction techniques have recently permitted much easier separation of the rare earths, with much lower costs. Only a few years ago, thulium metal was not obtainable at any cost; in 1996 the oxide cost $20/g. Thulium metal powder now costs $70/g (99.9%). Thulium can be isolated by reduction of the oxide with lanthanum metal or by calcium reduction of the anhydrous fluoride. The pure metal has a bright, silvery luster. It is reasonably stable in air, but the metal should be protected from moisture in a closed container. The element is silver-gray, soft, malleable, and ductile, and can be cut with a knife. Forty-one isotopes and isomers are known, with atomic masses ranging from 146 to 176. Natural thulium, which is 100% 169Tm, is stable. Because of the relatively high price of the metal, thulium has not yet found many practical applications. 169Tm bombarded in a nuclear reactor can be used as a radiation source in portable X-ray equipment. 171Tm is potentially useful as an energy source. Natural thulium also has possible use in ferrites (ceramic magnetic materials) used in microwave equipment. As with other lanthanides, thulium has a low-to-moderate acute toxicity rating. It should be handled with care.
UsesFerrites, X-ray source.
DefinitionAtomic number 69, group IIIB of the periodic table, a rare-earth element of the lanthanide groups, aw168.9342, valence of 3; no stable isotopes.
ApplicationThulium products are mainly used in making crystal and lasers. 
An important application of the thulium in the Medicine area, and relatively independent of its high cost, is the production of portable X-ray sources. These sources are available for about one year, as tools in medical and dental diagnosis, as well as to detect defects in mechanical and electronic inaccessible components. This type of sources does not need excessive protection. Usually a small cap of lead is enough. Thulium can also be used in magnetic and ceramic materials (ferrite), similar to the Yttrium-iron alloys, nowadays used in the microwave technologies.
Thulium Metal, is mainly used in making superalloys, and has some application in ferrites (ceramic magnetic materials) used in microwave equipment and also as a radiation source of portable X-ray. Thulium potentially has use in ferrites, ceramic magnetic materials that are used in microwave equipment. it is used in arc lighting for its unusual spectrum. Thulium Metal can be further processed to various shapes of ingots, pieces, wires, foils, slabs, rods, discs and powder.
HazardFire risk in form of dust.
THULIUM Preparation Products And Raw materials
Preparation ProductsThulium oxide-->LUTETIUM OXIDE-->YTTERBIUM OXIDE
Tag:THULIUM(7440-30-4) Related Product Information
antimony, compound with thulium (1:1) ammonium thulium(3+) disulphate diammonium thulium pentanitrate thulium orthovanadate thulium vanadium oxide Thulium(III) sulfate, >=99.99% thulium hexaboride Thulium(III) nitrate trihydrate THULIUM(III) SULFATE OCTAHYDRATE, 99.9% THULIUM(III) ACETATE HYDRATE, 99.9% THULIUM ETHYL SULFATE THULIUM TELLURIDE THULIUM(III) OXIDE, 99.9%,THULIUM(III) OXIDE, 99.99% THULIUM THULIUM(III) FLUORIDE, ANHYDROUS, 99.99%,thulium trifluoride thulium(3+) oxalate ,THULIUM(III) OXALATE, 99.99+% THULIUM SELENIDE THULIUM(III) CHLORIDE HEXAHYDRATE