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inquiryAbout Product Details DYSPROSIUM FLUORIDE Basic information Product Name: DYSPROSIUM FL
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Name: Dysprosium Fluoride CAS: 13569-80-7 Molecular Formula: DyF3 Molecular Weight: 219.495 Application:Fine chemical
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dysprosium(III) fluoride
Conditions | Yield |
---|---|
With HF heating the rare-earth oxide to 973 K or 1023 K under flowing mixt. of HF and Ar for about 16 h; product was transferred to platinum crucibles and melted under mixt. ofHF and Ar; |
Conditions | Yield |
---|---|
In neat (no solvent) excess fluoride, 200°C, Pt-vessel; removal of excess fluoride on heating in a stream of dry inert gas to 450°C;; | |
In hydrogenchloride dissolving oxide in aq. HCl, pptn. with excess aq. NH4F, filtration, drying, dehydration on heating ppt. with excess powdered NH4F to 360°C in a dry stream of He or Ne (O2-free) for 5h;; | |
In hydrogenchloride dissolving oxide in aq. HCl, pptn. with excess aq. NH4F, filtration, drying, dehydration on heating ppt. with excess powdered NH4F to 360°C in a dry stream of He or Ne (O2-free) for 5h;; | |
With HF In hydrogen fluoride aq. HF; lanthanide trifluoride is treated with 40% hydrofluoric acid with stirring, decanting the HF, drying under an infrared heater at 50°C, mixing with NH4F, heating at 500°C; XRD, DTA; |
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: oxygen; explosive convertion at 330-380°C, starting of fluorination at 375°C; |
Conditions | Yield |
---|---|
In hydrogenchloride; nitric acid Dy2O3 was dissolved in HCl-HNO3, pptd. with HF, dehydrated under streamof HF-N2 at temp. gradually raised to about 1000 K; | |
In neat (no solvent) byproducts: H2O; at elevated temp.;; | |
In neat (no solvent) byproducts: H2O; formation of hydrated compound with moist HF at 150-250°C, dehydration at 350-550.degreee.C with dry HF containing 10% H2;; | |
In neat (no solvent) byproducts: H2O; on passing dry HF-gas over oxide at 700°C, 200% excess HF, cooling to room temp. under diminished pressure, removal of HF by passing through He;; | 99.90-99.98 |
In hydrogenchloride dissolution of the sesquioxide in hydrochloric acid; precipitation by addn. of HF; dehydration under a gas stream of HF-N2 at 1000 K;; distillation in a high vacuum; X-ray powder diffraction;; |
Conditions | Yield |
---|---|
In melt byproducts: CdO; with molten CdO;; | 0% |
Conditions | Yield |
---|---|
In neat (no solvent) heating oxide and excess SF4 in vac. until start of react., exclusion of moisture;; | |
In neat (no solvent) heating oxide and excess SF4 in vac. until start of react., exclusion of moisture;; |
Conditions | Yield |
---|---|
In neat (no solvent) excess fluoride, 200°C, Pt-vessel; removal of excess fluoride on heating in a stream of dry inert gas to 450°C;; | |
In neat (no solvent) heating (carbon crucible, 300°C, 3 h, 450°C, 4 h); |
Conditions | Yield |
---|---|
In neat (no solvent) |
Conditions | Yield |
---|---|
In neat (no solvent) at 700°C, exothermic react.;; |
Conditions | Yield |
---|---|
With sodium linoleate; linoleic acid In ethanol; water High Pressure; Na linoleate, linoleic acid and EtOH mixed under agitation; aq. soln. ofDy(NO3)3 and NaF added; agitated for ca. 5 min; transefrred to autoclav e; sealed; hydrothermally treated at 100-200°C for 8-10 h; cooledto room temp.; deposit dispersed in cyclohexane; EtOH added; centrifuged; powder purified with EtOH several times; detd. by X-ray powder diffraction and electron microscopy; DyF3 nanocrystals obtained; |
Conditions | Yield |
---|---|
In neat (no solvent, solid phase) calorimetric bomb, react. under dried Ar; |
A
dysprosium(III) fluoride
B
Carbonyl fluoride
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: SO2; heated under nitrogen (rate: 10°C/min); |
Conditions | Yield |
---|---|
In neat (no solvent) fluorine passing into reaction vessel with rare earth metal (const. temp. 510°); gravimetric monitoring; |
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: COF2, SO2; thermal decompn. in inert atmosphere (exclusion of moisture);; | |
In neat (no solvent) byproducts: COF2, SO2; thermal decompn. in inert atmosphere (exclusion of moisture);; |
Conditions | Yield |
---|---|
In hydrogenchloride byproducts: CO2; pH 1 to <4, heating to 60-100°C for 4h while stirring, washing with H2O until neutral react.;; | >95 |
Conditions | Yield |
---|---|
In water 0.025m M(3+)-soln., 0.025m Na2Si2O6-soln. pH=2.1 to 3.0, 25°C;; |
dysprosium(III) trichloride
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In water byproducts: NaCl, SiO2, HCl; molar ratio Na2SiF6:MCl3=0.5 to 0.6, 0.025m M(3+)-soln., 0.025m Na2Si2O6-soln. pH=2.1 to 3.0, 25°C;; | >99 |
Conditions | Yield |
---|---|
In hydrogenchloride byproducts: CO2, CaCl2; pH 1 to <4, heating to 60-100°C for 4h while stirring, washing with H2O until neutral react.;; | >95 |
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: carbon; violent react.;; |
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In solid decompd. at heating up to 550°C; |
Conditions | Yield |
---|---|
In neat (no solvent) decompn.; determination of equilibrium constant, decompn.-pressure, free enthalpy and react.-enthalpy for different temp.;; | |
In neat (no solvent) decompn.; determination of equilibrium constant, decompn.-pressure, free enthalpy and react.-enthalpy for different temp.;; |
Conditions | Yield |
---|---|
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with HF-gas at 600°C (normal pressure);; | A >99 B >99 |
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with HCl-gas at 250°C and about 40Torr;; | A >99 B >99 |
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with NH4F or NH4F*HF to 650-700°C;; | A >99 B >99 |
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: H2O, NH4F; decompn. on heating, formation of intermediates in steps at 69 and 159 °C;; investigation by DTA and TGA;; | |
In neat (no solvent) byproducts: H2O, NH4F; decompn. on heating, formation of intermediates in steps at 69 and 159 °C;; investigation by DTA and TGA;; |
Conditions | Yield |
---|---|
In neat (no solvent) decompn. on cooling slowly;; |
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In neat (no solvent) annealing under N2/HF stream (800°C, Pt crucible, vitreous carbontube furnace); X-ray powder diffraction; |
potassium trifluoroacetate
B
dysprosium(III) fluoride
Conditions | Yield |
---|---|
With oleic acid; 1-octadecene; oleylamine In neat (no solvent) (Ar); addn. of K compd. and Dy compd. to mixture of oleic acid, 1-octadecene, oleylamine at room temp., heating to 120°C under vacuum for30 min, heating to 250-330°C (22 K/min), storage at this temp. f or 15-120 min; |
methanol
A
dysprosium(III) fluoride
Conditions | Yield |
---|---|
In methanol byproducts: HNO3; complex prepd. at room temp. by slow diffusion of two methanol solns.; one soln. containing cis-CrF2(phen)2(NO3) and other - Dy(NO3)3*nH2O; total time of synthesis 6-12 mo; crystals sepd. from powder DyF3 and washed by decantation with methanol;elem. anal., XRD; |
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% |
dysprosium(III) fluoride
Conditions | Yield |
---|---|
With calcium In neat (no solvent) byproducts: CaF2; start of react. at 600-800°C, high frequency furnace, Ta-vessel, under Ar;; | 96% |
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 Li or Na or Ca or Ba In neat (no solvent) reduction at higher temp.;; |
dysprosium(III) fluoride
silica gel
Conditions | Yield |
---|---|
With CsCl In neat (no solvent, solid phase) Dy2O3, DyF3, SiO2 and CsCl mixed in 1:1:3:6 molar ratio; in evacuated quartz ampoule, 700 °C, 7 d; CsCl fluxing agent washed out with water; | 80% |
With CsCl In neat (no solvent, solid phase) Dy2O3, DyF3, SiO2 and CsCl mixed in 1:1:3:6 molar ratio; in gastight platinum tube, 700 °C, 7 d; CsCl fluxing agent washed out with water; | >90 |
Conditions | Yield |
---|---|
In melt Electrolysis; DyF3 and LiF with 2% Dy2O3, 95A, 27V, current yield in the beginning: 1.0A/cm**2 (anode), 31.4A/cm**2 (cathode);; |
Conditions | Yield |
---|---|
In neat (no solvent) annealing calcd. amounts at 780°C for 70h;; | |
With NH4HF2 In neat (no solvent) heated under Ar at 350 °C for several h; | |
In neat (no solvent, solid phase) 600°C, 900 h; |
Conditions | Yield |
---|---|
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction; |
Conditions | Yield |
---|---|
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction, thermal anal.; |
Conditions | Yield |
---|---|
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction; |
Conditions | Yield |
---|---|
In neat (no solvent) annealing mixture of fluorides in sealed platinum tube at 1500 K for 2 d; quenching from 1300 K; X-ray powder diffraction (comparison with reported data);; |
Conditions | Yield |
---|---|
In neat (no solvent) pressed mixture (molar ratio=1:1), Pt-vessel, 1000-1100°C, in vac. under inert gas;; | |
In neat (no solvent) High Pressure; under pressure (100kbar) in a closed Pt-tube at 800-100°C, 30min;; | |
In neat (no solvent) at 1000-1100°C;; |
Conditions | Yield |
---|---|
In neat (no solvent, solid phase) 600°C, 900 h; |
Conditions | Yield |
---|---|
In neat (no solvent) 975.-+.25°C, streaming H2O-vapor, 4-30min; increase of react.-rate in presence of U3O8 and/or Cr2O3;; | >99 |
In neat (no solvent) 975.-+.25°C, streaming H2O-vapor, 4-30min; increase of react.-rate in presence of U3O8 and/or Cr2O3;; | >99 |
dysprosium(III) fluoride
water
Conditions | Yield |
---|---|
In neat (no solvent) fast hydrolysis at 800°C;; product mixture;; | |
In neat (no solvent) fast hydrolysis at 800°C;; product mixture;; |
xenon difluoride
dysprosium(III) fluoride
terbium(III) fluoride
terbium tetrafluoride
Conditions | Yield |
---|---|
In neat (no solvent) byproducts: Xe; heating (430-470°C, 0.5-1 h); DTA; |
Conditions | Yield |
---|---|
In diethyl ether pptn., exothermic react.;; | |
In diethyl ether pptn., exothermic react.;; |
zirconium
dysprosium(III) fluoride
B
zirconium(IV) fluoride
Conditions | Yield |
---|---|
With LiF; NaF In melt byproducts: LiDyF4, NaDyF4; heating of DyF3 and Zr in molten mixt. of 39 mol % NaF and 61 mol % LiF at 465 - 625°C; monitoring by differential thermal XRD and IR; |
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