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Neodymium 3 nitrate hexahydrate

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Neodymium(III) nitrate hexahydrate is an inorganic compound with the chemical formula Nd(NO3)3·6H2O. It is a crystalline solid that is soluble in water. The compound serves as a source of the rare earth element neodymium, which is commonly used in the production of high-strength permanent magnets.

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7 protocols using neodymium 3 nitrate hexahydrate

1

Trace Metal Enrichment Membrane Fabrication

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Polyethersulfone (PES) microfiltration membranes (0.45 μm pore diameter, 47 mm diameter) were purchased from MilliporeSigma (Burlington, USA). Glycidyl methacrylate (≥97.0%), lanthanum(III) nitrate hexahydrate (99.999% trace metal basis), cerium(III) chloride heptahydrate (99.9% trace metal basis), neodymium(III) nitrate hexahydrate (99.9% trace metal basis), zinc perchlorate hexahydrate, calcium chloride (anhydrous, Redi-Dri, ≥97%), sodium standard for ICP (1,000 mg/L ± 2 mg/L), calcium standard for ICP (1,000 mg/L ± 2 mg/L), and magnesium standard for ICP (1,000 mg/L ± 2 mg/L) were purchased from Sigma-Aldrich. Magnesium chloride hexahydrate (99–102%, ACS grade) was purchased from VWR Life Science. L-lysine (98%, powder) was purchased from Alfa Aesar. Ethyl alcohol (absolute, 200 proof, ≥99.5%, ACS Reagent grade) was purchased from Acros Organics. Denatured Ethyl alcohol (88–91%), sodium chloride (≥99%, certified ACS grade, crystalline), nitric acid (68–70%, certified ACS plus grade), and hydrochloric acid (36.5–38%, certified ACS plus grade) were purchased from Fisher Chemical. Arsenazo (III) was purchased from Pointe Scientific. Sodium hydroxide (10 N, biotech reagent grade) was purchased from Avantor. Deionized water (DI water) was made from a RiOS-DI 3 water purification system (MilliporeSigma, Burlington, MA, USA).
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2

Synthesis of Neodymium-Doped Zinc Ferrites

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Firstly, urea coprecipitation method was adopted to fabricate nanocrystalline ZnNdxFe2−xO4 (x = 0, 0.01, 0.03, 0.05) ferrites according to a previous publication with a moderate modification [34 (link)]. Analytical grade zinc nitrate tetrahydrate [Zn(NO3)2·4H2O, 98% pure, Sigma-Aldrich, Darmstadt, Germany], iron(II) nitrate nonahydrate [Fe(NO3)3·9H2O, 99.9% pure, Sigma-Aldrich], and neodymium(III) nitrate hexahydrate (Nd(NO3)3·6H2O, 99.9% pure, Sigma-Aldrich) were used as oxidizer and urea (CH4N2O, >99% pure, Sigma-Aldrich) was used as a fuel additive. A number of proper ions: Zn2+ (1 mmol) combined with Fe3+ [(2−x) mol] and Nd3+ (x mol) (x = 0, 0.01, 0.03, 0.05) were dissolved in distilled water. The final pH of the solution was adjusted at 5.0, and then was heated to 100 °C for 1 h. The precipitation was collected, washed with distilled water (3 × 20 mL) to eliminate metal ion and anion traces and then calcinated up to 500 °C for 2 h (ramping rate of 10 °C/min). The product was ground and stored at a vacuum container.
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3

Synthesis of Lanthanide-Doped Nanoparticles

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Zinc(II) nitrate hexahydrate (Zn(NO3)2·6H2O) was purchased from Fluka. Manganese(II) chloride tetrahydrate
(MnCl2·4H2O), europium(III) chloride hexahydrate
(EuCl3·6H2O), samarium(III) nitrate hexahydrate
(Sm(NO3)3·6H2O), neodymium(III)
nitrate hexahydrate (Nd(NO3)3·6H2O), ytterbium(III) chloride hexahydrate (YbCl3·6H2O), and sodium sulfide nonahydrate (Na2S·9H2O) were purchased from Sigma-Aldrich. All chemicals were used
without further purification.
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4

Fabrication of Polymetallic Nanocomposites

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Zinc acetate [Zn(CH3COO)2·2H2O]), neodymium (III) nitrate hexahydrate (Nd(NO3)3·6H2O), N,N-dimethylformamide (DMF), ethanol (EtOH), polyvinylpyrrolidone (PVP) (Mw = 1,300,000), methylene blue dye (MB), and ciprofloxacin (CIP, C6H9N3O3) were purchased from Sigma-Aldrich (St. Louis, MO, USA) and used without further purification.
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5

Synthesis and Characterization of Lanthanide-Vanadate Nanoparticles

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Lutetium (III) nitrate hydrate (Lu(NO3)3·xH2O, Sigma-Aldrich, 99.9%, St. Louis, MO, USA), neodymium (III) nitrate hexahydrate (Nd(NO3)3·6H2O, Sigma-Aldrich, 99.9%, St. Louis, MO, USA), sodium orthovanadate (Na3VO4, Sigma-Aldrich, 99.9%, St. Louis, MO, USA), ethylene glycol (EG, Sigma-Aldrich, 99.9%, St. Louis, MO, USA), polyacrylic acid (PAA, average Mw~1800, Sigma-Aldrich, St. Louis, MO, USA), 2-morpholinoethanesulfonic acid (MES, Sigma-Aldrich, 99%, St. Louis, MO, USA), and Iohexol (Sigma-Aldrich, analytical standard, ≥95%, St. Louis, MO, USA) were used as received.
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6

Synthesis and Characterization of Fluorinated Compounds

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Alizarin-3-methyliminodiacetic acid was purchased from Cayman Chemical. Lanthanum(III) nitrate hexahydrate, cerium(III) nitrate hexahydrate, neodymium(III) nitrate hexahydrate, and praseodymium(III) nitrate hexahydrate, at 99.99% purity, were from Sigma-Aldrich. Sodium acetate used for the buffer was from J. T. Baker and was 99% pure. Glacial acetic acid was from Fisher Scientific. Acetone from Fisher Scientific and ethyl acetate and methyl-tert-butyl-ether (MTBE) from Sigma-Aldrich were high-performance liquid chromatography (HPLC) grade and >99% pure. Fluoroatrazine was synthesized (76 (link)), and 1H-NMR analysis indicated a purity of ∼90%. 4-Fluorobenzotrifluoride was purchased from Oakwood Chemical. GC-MS and NMR data show ∼98% purity of this compound. Standard 5-fluoro-2-(trifluoromethyl)phenol and 2-fluoro-5-(trifluoromethyl)phenol were both purchased from Sigma-Aldrich at ∼97% purity. l-Arginine, used for growth, was from Calbiochem. Isopropyl-β-d-thiogalactopyranoside (IPTG) was obtained from Gold Bio. Toluene, used for specified cell growth and induction, was from Fisher Chemical and had 99% purity. N,O-Bis(trimethylsilyl)trifluoroacetamide was purchased from Fluka Analytical and had a purity of 99%. CDCl3 and CD3CN were obtained from Cambridge Isotope Laboratories, Inc., both at 99% purity.
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7

Synthesis of ZnAl2O4:M Pigments

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For the synthesis of the new pigments of ZnAl2O4:M (M = Co2+ and Co2+/Nd3+), aluminum was recycled from discarded can seal, ZnCl2•6H2O (Zinc chloride hexahydrate, Dinâmica, reagent grade, 97%), CoCl2•6H2O (Cobalt (II) chloride hexahydrate, Dinâmica, Gorizia, Italy, reagent grade, 98%), Nd(NO3)3•6H2O (Neodymium (III) nitrate hexahydrate, Sigma Aldrich, St. Louis, MI, USA, reagent grade, 99.9%) were used as precursors. Deionized water was used as a solvent, HCl (Hydrochloric acid, NEON (São Paulo, Brazil), reagent grade, 37.8%) was used for acid digestion of aluminum, NaOH (Sodium hydroxide, NEON, reagent grade 99%) was used to correct the pH, and starch was used as fuel.
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