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SAMARIUM

SAMARIUM Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-55531817
Email: info@dakenchem.com
Products Intro: Product Name:SAMARIUM
CAS:7440-19-9
Purity:99% Package:100g,500g,1kg,5kg,10kg
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Email: info@tianfuchem.com
Products Intro: CAS:7440-19-9
Purity:99% Package:500G;1KG;5KG;25KG
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
Email: sales@mainchem.com
Products Intro: Product Name:SAMARIUM
CAS:7440-19-9
Company Name: J & K SCIENTIFIC LTD.  
Tel: 400-666-7788 +86-10-82848833
Email: jkinfo@jkchemical.com;market6@jkchemical.com
Products Intro: Product Name:Samarium, 99.9%, trace metal basis, 40 mesh
CAS:7440-19-9
Purity:99.9% Package:10G;50G
Company Name: Alfa Aesar  
Tel: 400-610-6006; 021-67582000
Email: saleschina@alfa-asia.com
Products Intro: Product Name:SaMariuM ingot/button, ^=50.8MM (2.0in) dia, 99.5% (REO)
CAS:7440-19-9
Package:1pc Remarks:045107
SAMARIUM Basic information
Uses
Product Name:SAMARIUM
Synonyms:Samarium plasma standard solution, Sm 10000μg/mL;Samarium foil, 0.75mm (0.03 in.) thick;Samarium plasma standard solution, Sm 1000μg/mL;Samarium, AAS standard solution, Sm 1000μg/mL;Samarium foil, 0.1mm (0.004 in.) thick;Samarium foil, 0.62mm (0.024 in.) thick;Samarium rod, 12.7mm (0.5 in.) dia.;Samarium foil, 0.025mm (0.001 in.) thick
CAS:7440-19-9
MF:Sm
MW:150.36
EINECS:231-128-7
Product Categories:metal or element;Inorganics;Catalysis and Inorganic Chemistry;Chemical Synthesis;Metals;Samarium;SamariumMetal and Ceramic Science
Mol File:7440-19-9.mol
SAMARIUM Structure
SAMARIUM Chemical Properties
Melting point 1074 °C(lit.)
Boiling point 1794 °C(lit.)
density 7.47 g/mL at 25 °C(lit.)
storage temp. water-free area
form powder
color Silvery-gray
resistivity91.4 μΩ-cm, 0°C
Water Solubility Insoluble in water.
Sensitive Air & Moisture Sensitive
Merck 13,8425
CAS DataBase Reference7440-19-9(CAS DataBase Reference)
Safety Information
Hazard Codes F,R,Xn
Risk Statements 11-15-33
Safety Statements 16-30-33
RIDADR UN 3089 4.1/PG 3
WGK Germany 3
1-10
TSCA Yes
HazardClass 4.2
PackingGroup I
HS Code 28053019
MSDS Information
ProviderLanguage
ACROS English
SigmaAldrich English
ALFA English
SAMARIUM Usage And Synthesis
UsesSamarium occurs as silver-coloured solid/foils or grey powder and is an odourless, flammable, and water-reactive solid. All forms of samarium are known to react with dilute acids emitting flammable/explosive hydrogen gas. Samarium on contact with water reacts and liberates extremely flammable gases. Samarium is incompatible with strong acids, strong oxidising agents, and halogens. The major commercial application of samarium is in samarium–cobalt magnets. These magnets possess permanent magnetisation property. Samarium compounds have been shown to withstand significantly higher temperatures, above 700°C, without losing their magnetic properties. The radioactive isotope samarium-153 is the major component of the drug samarium 153Sm lexidronam (Quadramet). These are used in the treatment of cancers of lung, prostate, and breast and osteosarcoma. Samarium is also used in the catalysis of chemical reactions, radioactive dating, and in x-ray laser. Samarium is used as a catalyst in certain organic reactions: Samarium iodide (SmI2) is used by organic research chemists to make synthetic versions of natural products.
Samarium occurs with concentration up to 2.8% in several minerals including cerite, gadolinite, samarskite, monazite, and bastnäsite, the last two being the most common commercial sources of the element. These minerals are mostly found in China, the United States, Brazil, India, Sri Lanka, and Australia; China is by far the world leader in samarium mining and production. Radioactive isotope samarium-153 is the major component of the drug samarium (153Sm) lexidronam (Quadramet), which kills cancer cells in the treatment of lung cancer, prostate cancer, breast cancer, and osteosarcoma. The isotope, samarium-149, is a strong neutron absorber and is therefore added to the control rods of nuclear reactors. Samaria oxide is used for making special infrared-adsorbing glass and cores of carbon arc-lamp oxide electrodes and as a catalyst for the dehydration and dehydrogenation of ethanol. Its compound with cobalt (SmCo5) is used in making a new permanent magnet material. Samarium has no biological role, but it has been noted to stimulate metabolism. Soluble samarium salts are mildly toxic by ingestion, and there are health hazards associated with these because exposure to samarium causes skin and eye irritation. One of the most important applications of samarium is in samarium–cobalt magnets, which have a nominal composition of SmCo5 or Sm2Co17. They have high permanent magnetisation, which is about 10,000 times that of iron and is second only to that of neodymium magnets.
Chemical Propertiessilvery grey powder
HistoryDiscovered spectroscopically by its sharp absorption lines in 1879 by Lecoq de Boisbaudran in the mineral samarskite, named in honor of a Russian mine official, Col. Samarski. Samarium is found along with other members of the rare-earth-elements in many minerals, including monazite and bastnasite, which are commercial sources. The largest producer of rare-earth minerals is now China, followed by the U.S., India, and Russia. It occurs in monazite to the extent of 2.8%. While misch metal containing about 1% of samarium metal has long been used, samarium has not been isolated in relatively pure form until recently. Ion-exchange and solvent extraction techniques have recently simplified separation of the rare earths from one another; more recently, electrochemical deposition, using an electrolytic solution of lithium citrate and a mercury electrode, is said to be a simple, fast, and highly specific way to separate the rare earths. Samarium metal can be produced by reducing the oxide with barium or lanthanum. Samarium has a bright silver luster and is reasonably stable in air. Three crystal modifications of the metal exist, with transformations at 734 and 922°C. The metal ignites in air at about 150°C. Thirty-three isotopes and isomers of samarium are now recognized. Natural samarium is a mixture of seven isotopes, three of which are unstable but have long half-lives. Samarium, along with other rare earths, is used for carbonarc lighting for the motion picture industry. The sulfide has excellent high-temperature stability and good thermoelectric efficiencies up to 1100°C. SmCo5 has been used in making a new permanent magnet material with the highest resistance to demagnetization of any known material. It is said to have an intrinsic coercive force as high as 2200 kA/m. Samarium oxide has been used in optical glass to absorb the infrared.Samarium is used to dope calcium fluoride crystals for use in optical masers or lasers. Compounds of the metal act as sensitizers for phosphors excited in the infrared; the oxide exhibits catalytic properties in the dehydration and dehydrogenation of ethyl alcohol. It is used in infrared absorbing glass and as a neutron absorber in nuclear reactors. The metal is priced at about $3.50/g (99.9%). Little is known of the toxicity of samarium; therefore, it should be handled carefully.
Tag:SAMARIUM(7440-19-9) Related Product Information
SAMARIUM FOIL, 0.62MM (0.024IN) THICK, 99.9% (REO) SAMARIUM-154 OXIDE(154SM2) ENRICHMENT: 98%+ SAMARIUM - SM2O3, 99.99%, 2% HNO3 100ML SAMARIUM-149 OXIDE(149 SM2) ENRICHMENT: 95%+ SAMARIUM SELENATE SAMARIUM(III) IODIDE SAMARIUM SILICIDE, SMSI2 SAMARIUM ACETATE SAMARIUM TELLURIDE SAMARIUM(III) PERCHLORATE SAMARIUM ARSENIDE Samarium oxide SAMARIUM SULFIDE Samarium trifluoride SAMARIUM SULFATE SAMARIUM SAMARIUM CHLORIDE ACETYLACETONE, SAMARIUM DERIVATIVE