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SAMARIUM Basic information Product Name: SAMARIUM Synonyms: Samarium ingot, 99.9% trace rare earth metals basis;Samarium foil50x50mm;Samarium pieces, sublimed dendritic, 99.9% trace rare earth metals basis;Samarium foil25x25mm;Samarium powder,
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Samarium cas 7440-19-9Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
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Formula: SmMolecular Weight : 150.36 Synonyms: SAMARIUM, PLASMA STANDARD SOLUTION;SAMARIUM SINGLE ELEMENT STANDARD;SAMARIUM STANDARD;SAMARIUM ATOMIC ABSORPTION STANDARD SOLUTION;SAMARIUM, AAS STANDARD SOLUTION;SAMARIUM;SAMARIUM ICP STANDARD;SAM
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samarium
Conditions | Yield |
---|---|
With zirconium In neat (no solvent) reduction by heating the pressesd mixture (99.05 Sm2O3, purity of reducing reagent >99.5%) to 1100-1200°C at maximal 2E-4 Torr, distn. of Sm, Mo-vessel;;; | 91% |
With lanthanum In neat (no solvent) heating in a Ta-vessel to 1450°C at less than 1E-3 Torr for 30min, distn. of Sm;; purity >98%;; | >80 |
With aluminium In neat (no solvent) reduction, formation of Al-Sm-alloy;; |
Conditions | Yield |
---|---|
vapor pressure of Sm between 1217 and 1473°K given as equation; optimal conditions: 1200°C, 1E-3 Torr; | A n/a B 90% |
in vac.; |
samarium
Conditions | Yield |
---|---|
In ethylenediamine Electrolysis; 150V, 4.4mA/cm**2, 0.37g nitrate in ethylene diamine;; | 41% |
Conditions | Yield |
---|---|
in vac.; |
Conditions | Yield |
---|---|
In melt under Ar in a tantalum ampoule, in Na melt, heating to 650 °C for7 d, oxygen as the contamination of SmI2; cooling in air to room temp., selected under a microscope; |
Conditions | Yield |
---|---|
in vac.; |
samarium(III) chloride
samarium
Conditions | Yield |
---|---|
In neat (no solvent) reduction with alkali metal between 200 and 400°C; reversible react. >400°C;; | |
With calcium In neat (no solvent) byproducts: Zn-Sm-alloy; 400-750°C, steel-tube coated with CaO, booster: ZnCl2;; small amounts of alloy;; | 0% |
In melt Electrolysis; melting at 8V and 30-40A, electrolysis at very high temperatures and 50-100A;; | |
In melt eutectic KCl/LiCl-mixture, 800°C, 2A/cm**2; cathode: liquid Cd, formation of an alloy, separation of cathode material by distn.;; | |
In melt eutectic KCl/LiCl-mixture, 800°C, 2A/cm**2; cathode: liquid Mg, Zn or Cd, formation of an alloy, separation of cathode material by distn.;; |
samarium(III) chloride
A
samarium
Conditions | Yield |
---|---|
With sodium In neat (no solvent) reduction of oxide-free chloride;; | A 0% B n/a |
With calcium In neat (no solvent) 400-750°C, steel-tube coated with CaO, booster: I2, sulfur or KClO3;; | A 0% B n/a |
With calcium In neat (no solvent) byproducts: CaCl2; reduction under Ar, 550-1000°C;; | A 0% B n/a |
samarium(III) fluoride
samarium
Conditions | Yield |
---|---|
With lithium In neat (no solvent) byproducts: LiF; reduction in a Ta-vessel under Ar, start of react. at 700°C, cooling within 2-3h, removal of excess Li with H2O, mechanical separation of LiF;; | |
With LiF; CaF2 In melt Electrochem. Process; electrodeposited onto Ni at 850°C; | |
With LiF; CaF2 In melt Electrochem. Process; electrodeposited onto Mo at 850°C; | 0% |
A
samarium
B
2,2,6,6-tetramethyl-3,5-heptadionato ion
Conditions | Yield |
---|---|
In gaseous matrix Irradiation (UV/VIS); photodissociation (248 nm) in a buffer gas (N2+CH4), heating of precursor; laser-induced fluorescence; |
samarium(III) bromide
samarium
Conditions | Yield |
---|---|
With Mg or Ca or Na or K or Al or Ba In neat (no solvent) reduction;; |
samarium
Conditions | Yield |
---|---|
With alfalfa In water Sonication; pH of alfalfa suspn. in H2O was adjusted to 4, 6, 7 and 8 with biphthalates and phosphates, sonication for 15 min, it is added to Sm-salt soln.,sonication for 20 min, 25 °C for 4 h, centrifuging for 30 min at 2000 rpm standing for 72 h; |
samarium
Conditions | Yield |
---|---|
In neat (no solvent) Irradiation (UV/VIS); lanthanide compd. photodissociation by excimer laser irradiation at 248 nm; LIF detection; |
samarium
Conditions | Yield |
---|---|
heating under vac. at 1600-1670°C for 30-240 min.; |
Conditions | Yield |
---|---|
vapor of the oxide studied at 1950-2350°K (Knudsen-cell); detected by MS; |
Conditions | Yield |
---|---|
vapor of the oxide studied at 2000-2700°K (Knudsen-cell); detected by MS; | |
vapor of the oxide studied at 1600-1850°C; detected by MS; | |
vapor of the oxide studied by MS; detected by MS; |
samarium
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: H2; heating (vac., 5°C/min, 550-800°C); DTA monitoring; |
Conditions | Yield |
---|---|
In neat (no solvent) determination of react.-enthalpy at 298K;; |
Conditions | Yield |
---|---|
Knudsen effusion mass spectroscopy; vaporization of SmS at 1381-2014 ° C; |
Conditions | Yield |
---|---|
With Li or Na or Ca or Ba In neat (no solvent) reduction at higher temp.;; | A 0% B n/a |
Conditions | Yield |
---|---|
In gas 1187K, Ta-Knudsen-cell; equilibrium;; | |
In neat (no solvent, gas phase) 1187K, Ta-Knudsen-cell; equilibrium;; |
Conditions | Yield |
---|---|
vapor pressure of Sm between 1225 and 1473 K given as equation; optimal conditions: 1200°C, 1 h, 1E-3 Torr; |
Conditions | Yield |
---|---|
2200 K; |
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: SmTe, Te2; 1788-1972 K; |
samarium
Conditions | Yield |
---|---|
With C2H4I2 In 1,2-dimethoxyethane activation of Sm with C2H4I2 soln. (2h,room temp.), flask cooled to -20°C and charged with cyclooctatetraene , after 2h reaction time the flask was warmed to room temp. and the mixture stirred overnight ; suspension; not isolated , GC anal.; | 100% |
Conditions | Yield |
---|---|
In gas vac.-cocondensation (1E-4 mmHg) of Sm (1E-5 mole/h) and acetylacetone ()1E-3 mole/h) vapours on a cooled (to 80 K) glass or copper surface, film, then heating to 130-135 K; pumping off H2, heating to 20°C, sublimation (3h, 1E-2 mmHg); | 100% |
Conditions | Yield |
---|---|
With C2H4I2 In 1,2-dimethoxyethane activation of Sm with C2H4I2 soln. (2h,room temp.) , flask cooled to -20°C and charged with anthracene , after 2h reaction time the flask was warmed to room temp. and the mixt. stirred overnight ; suspension; not isolated , GC anal.; | 100% |
Conditions | Yield |
---|---|
With C2H4I2 In 1,2-dimethoxyethane activation of Sm with C2H4I2 soln. (2h,room temp.) , flask cooled to -20°C and charged with 1,4-diphenyl-1,3-butadiene , after 2h reaction time the flask was warmed to room temp. and the mixt. stirred overnight; suspension; not isolated , GC anal.; | 100% |
Conditions | Yield |
---|---|
With mercury In tetrahydrofuran THF was added by syringe to Sm, Tl(C5H5) and Hg at 0°C for 48 h and then 20°C for 24 h under N2; cooled, filtered, filtrate was evapd. to dryness under vac. at room temp.; elem. anal.; | 100% |
With mercury In tetrahydrofuran THF was added by syringe to Sm, Tl(C5H5) and Hg at 65°C for 65 hand then 20°C for 24 h under N2; cooled, filtered, filtrate was evapd. to dryness under vac. at room temp.; elem. anal.; | 100% |
With mercury In tetrahydrofuran; diethyl ether THF and Et2O was added by syringe to Sm, Tl(C5H5) and Hg at 0°C for 48 h and then 20°C for 72 h under N2; cooled, filtered, filtrate was evapd. to dryness under vac. at room temp.; elem. anal.; | 80% |
samarium
Conditions | Yield |
---|---|
In acetonitrile byproducts: Tl; the solvent was added by syringe to Sm and Tl(C5H5) under N2, Hg was added, stirred at 82°C for 66 h; followed by evapn. to dryness, recrystd. from MeCN; elem. anal.; | 100% |
Conditions | Yield |
---|---|
With oxygen In dimethyl sulfoxide metal. Sm under O2 atm. treated with DMSO and triflic acid (3 equiv.) in3 portions, heated at 100°C for 10 h; | 99% |
selenium
samarium
copper
Conditions | Yield |
---|---|
In neat (no solvent) mixt. Cu, Sm, and Se was heated at 973 K for 7 days; product was washed with water and dried in air; | 99% |
Conditions | Yield |
---|---|
In neat (no solvent, solid phase) mixt. of Sm, Ni, Sn loaded into Ta tube, heated at 970°C for 36 h, quenched in water, annealed at 700°C for 15 d; | 99% |
In neat (no solvent, solid phase) mixt. of Sm, Ni, Sn loaded into Nb tube, heated under dynamic vac. at 300°C for 1 d, heated at 950°C for 5 d, cooled to room temp.at 15°C/h; |
Conditions | Yield |
---|---|
In melt mixing of Sm, Ga and Ge in ratio Sm:Ga:Ge as 1:15:1 under N2; slowly heating (60°C/h) up to 1000°C; holding at 1000°C for 5h; cooling (75°C/h) to 850°C; holding isothermally for 6 days; cooling to 200°C; hot-temp. span-filtration; treatment with 3 M soln. of I2 in DMF for 12-24 h; rinsing with DMF, hot water, drying with acetone and ether; | 99% |
Conditions | Yield |
---|---|
In melt metal:metal fluoride:S molar ratio was 2:1:3, quartz crucible, Nb- or Ta-capsule, several days, 850 °C; equimolar amt. of NaCl was used as flux; NaCl was washed out with water; | 99% |
Conditions | Yield |
---|---|
In tetrahydrofuran byproducts: C2Cl4; Sonication; inert atmosphere; mass ratio metal : C2Cl6 = 1 : 3, 30 h; pptn. on pentane addn., decantation, washing (pentane), drying (room temp., dry box); elem. anal.; | 99% |
Conditions | Yield |
---|---|
With CsI In neat (no solvent) mixt. Sm, Cs2Se3, Zn, Se, and CsI was heated in vacuumated sealed tube to 1273 K in 48 h, kept at 1273 K for 50 h, and cooled a 4 K/h to 473 K; react. mixt. was washed with DMF, water, and acetone; | 99% |
Conditions | Yield |
---|---|
In hydrogenchloride Schlenk techniques; dissolution Sm in concd. aq. HCl (37%); XRD; | 99% |
Conditions | Yield |
---|---|
In hydrogen bromide aq. HBr; Schlenk techniques; dissolution Sm in concd. aq. HBr (48%); XRD; | 99% |
Conditions | Yield |
---|---|
In further solvent(s) Schlenk techniques; dissolution Sm in concd. aq. HI (55%); XRD; | 99% |
samarium
copper (I) tert-butoxide
B
copper
Conditions | Yield |
---|---|
In 1,2-dimethoxyethane all operations in sealed evacuated tubes with thoroughly dried and degassed solvents; Sm cutting and t-BuOCu stirred at ca. 20° for 35 h; excess of Sm and copper ppt. sepd. by centrifugation; reaction mixt. concd. and kept at 80° until complete dissolution of a finely dispersed ppt.; cooled slowly to 20°; crystals sepd. and dried in vacuo; identified by elem. anal., IR spec.; | A 72.9% B 96% |
Conditions | Yield |
---|---|
With Hg In tetrahydrofuran (N2), DME added to excess of Nd metal, Sn complex and 1-2 drops of Hg, stirred at room temp. for 5 d, sonicated for 1 d; filtered, concd., crystd. at -20°C, washed (hexane), dried (vac.), elem. anal.; | A 96% B n/a |
With Hg In tetrahydrofuran Sonication; (N2), DME added to excess of Nd metal, Sn complex and 1-2 drops of Hg, sonicated at room temp. for 6 d; filtered, concd., crystd. for a few months, elem. anal.; | A 30% B n/a |
Conditions | Yield |
---|---|
In neat (no solvent) mixt. Sm, Ge, Se, and Cs2Se2 was heated to 725°C at a rate of 35°C/h, held at 725°C for 150 h and cooled slowly to room temp. at a rate of 4°C/h; product was washed withDMF for 6 h; | 95% |
Conditions | Yield |
---|---|
In neat (no solvent) mixt. Sm, Ge, Se, and K2Se2 was heated to 725°C at a rate of 35°C/h, held at 725°C for 150 h and cooled slowly to room temp. at a rate of 4°C/h; product was washed withDMF for 6 h; | 95% |
samarium
2-phenyl-indole
bis(pentafluorophenyl)mercury(II)
bis(2-phenylindol-1-yl)tetrakis(tetrahydrofuran)samarium(II)
Conditions | Yield |
---|---|
In tetrahydrofuran byproducts: C6F5H, Hg; (N2); a mixture of Sm, 2-phenylindole and Hg-compound was stirred at room temp. for 12 h; filtered hot through a Celite pad; evapn. of solvent to dryness; elem. anal.; | 94% |
Conditions | Yield |
---|---|
In pyridine under N2, Schlenk techniques; Sm and Hg(SC6F5)2 (molar ratio 1:1.5) combined in pyridine; stirred overnight; filtered; filtrate reduced in vol. under vac.; layered with hexane; cooled to 5°C; elem. anal.; | A 35% B 93% |
Conditions | Yield |
---|---|
With Hg In neat (no solvent) under inert atmosphere; Sm, ligand and Hg (molar ratio 1:5:1) sealed in evacuated Duran glass ampoule; heated to 180°C for 5.5 h and to 220°C for 2.5 h; held for 168 h; cooled to 90°C for 300 h and to room temp. for 6 h; excess of ligand evapd.; elem. anal.; | 91% |
With 1,2,3,4-tetrahydroquinoline In neat (no solvent) under inert atmosphere; Sm, ligand and C9H11N (molar ratio 1:3:4) degassed; sealed in evacuated Duran glass ampoule; heated to 180°C for 6 h and to 210°C for 3 h; held for 168 h; cooled to 60°C for 480 h and to room temp. for 6 h; washed with hexane or toluene; elem. anal.; | 84% |
Conditions | Yield |
---|---|
With tetrahydrofuran In tetrahydrofuran React. of HgI2 with excess Sm under N2 in refluxing THF gives yellow (SmI3) and grey (Hg) suspn. in 0.5 h, a blue-green colour (SmI2) develops, heating (72 h).; Filtn., evapn.; | A 91% B n/a |
With tetrahydrofuran In tetrahydrofuran React. of HgI2 with excess Sm under N2 in refluxing THF gives yellow (SmI3) and grey (Hg) suspn. in 0.5 h, ablue-green colour (SmI2) develops, heating (22 h).; Filtn., evapn., elem. anal.; | A 72% B n/a |
Conditions | Yield |
---|---|
In pyridine byproducts: Tl; the solvent was added by syringe to Sm and Tl(C5H5) under N2, stirred at 115°C for 15 h; product obtained by evapg. the filtered reaction mixt. to dryness; elem. anal.; | 91% |
With mercury dichloride In pyridine byproducts: Tl; the solvent was added by syringe to Sm and Tl(C5H5) under N2, HgCl2 was added to the reaction mixt., stirred at 115°C for 18 h; product obtained by evapg. the filtered reaction mixt. to dryness, recrystd. from py/THF; elem. anal.; | 53% |
Conditions | Yield |
---|---|
In tetrahydrofuran under N2; diphenyl diselenide in THF is added to Eu-Hg; after 4 d filtd., the filtrate is concd., layered with diethyl ethercooled to room temp., elem. anal.; | 91% |
Conditions | Yield |
---|---|
In diethyl ether | 91% |
samarium
2-phenyl-indole
bis(pentafluorophenyl)mercury(II)
A
bis(2-phenylindol-1-yl)tetrakis(tetrahydrofuran)samarium(II)
B
Pentafluorobenzene
Conditions | Yield |
---|---|
With THF In tetrahydrofuran under N2, 12 h at room temp.; filtered, filtrate evapd. to dryness (vac., room temp.); | A 90% B n/a C n/a |
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