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16454-60-7 Usage


Neodymium nitrate hexahydrate is a chemical compound consisting of neodymium, a rare earth element, and nitrate ions. It is characterized by its purple crystalline appearance and is known for its unique properties, which make it valuable in various applications across different industries.


Used in Glass and Crystal Manufacturing:
Neodymium nitrate hexahydrate is used as a colorant for glass and crystal, imparting delicate shades ranging from pure violet through wine-red and warm gray. The light transmitted through such glass exhibits unusually sharp absorption bands, which contribute to its aesthetic appeal and functional benefits.
Used in Protective Lenses for Welding Goggles:
Due to its ability to absorb specific light wavelengths, neodymium nitrate hexahydrate is utilized in the production of protective lenses for welding goggles. This application ensures that the lenses provide adequate protection against harmful light emissions during welding processes.
Used in CRT Displays:
In the context of cathode ray tube (CRT) displays, neodymium nitrate hexahydrate is employed to enhance the contrast between reds and greens. This results in improved visual quality and a more vibrant display experience for users.
Used in Glass Lasers:
Neodymium nitrate hexahydrate is also used for doping some glass lasers, where it imparts specific optical properties that are beneficial for laser operation.
Used in the Preparation of Neodymium Oxide and Neodymium Oxybromide Nanoparticles:
Furthermore, neodymium(III) nitrate hexahydrate serves as a precursor in the synthesis of nanoparticles of neodymium oxybromide and neodymium oxide. These nanoparticles have potential applications in various fields, such as electronics, photonics, and materials science, due to their unique physical and chemical properties.

Purification Methods

It crystallises with 5 and 6 molecules of H2O from concentrated solutions in dilute HNO3 by slow evaporation; 1 part is soluble in 10 parts of H2O.

Check Digit Verification of cas no

The CAS Registry Mumber 16454-60-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,5 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 16454-60:
107 % 10 = 7
So 16454-60-7 is a valid CAS Registry Number.

16454-60-7 Well-known Company Product Price

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  • Alfa Aesar

  • (12912)  Neodymium(III) nitrate hexahydrate, 99.9% (REO)   

  • 16454-60-7

  • 50g

  • 604.0CNY

  • Detail
  • Alfa Aesar

  • (12912)  Neodymium(III) nitrate hexahydrate, 99.9% (REO)   

  • 16454-60-7

  • 250g

  • 2008.0CNY

  • Detail
  • Aldrich

  • (289175)  Neodymium(III)nitratehexahydrate  99.9% trace metals basis

  • 16454-60-7

  • 289175-25G

  • 460.98CNY

  • Detail
  • Aldrich

  • (289175)  Neodymium(III)nitratehexahydrate  99.9% trace metals basis

  • 16454-60-7

  • 289175-100G

  • 1,058.85CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name Neodymium Nitrate Hexahydrate

1.2 Other means of identification

Product number -
Other names neodymium(3+),trinitrate,hexahydrate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:16454-60-7 SDS

16454-60-7Relevant articles and documents

Photoluminescence studies on rare earth titanates prepared by self-propagating high temperature synthesis method

Joseph, Lyjo K.,Dayas,Damodar, Soniya,Krishnan, Bindu,Krishnankutty,Nampoori,Radhakrishnan

, (2008)

The laser-induced luminescence studies of the rare earth titanates (R2Ti2O7) (R = La, Nd and Gd) using 355 nm radiation from an Nd:YAG laser are presented. These samples with submicron or nanometer size are prepared by the

Preparation of nanopowdered M1-x R x F2+x (M = Ca, Sr, Ba; R = Ce, Nd, Er, Yb) solid solutions


, p. 315 - 320 (2007)

The synthesis procedure has been worked out, and nanopowders of fluoride solid solutions (ss) Ca1-x R x F2+x (R = Er, Yb), Sr1-x Nd x F2+x , and Ba1-x Ce x F2+x/

Moderate pressure synthesis of rare earth nickelate with metal-insulator transition using polymeric precursors


, p. 1663 - 1669 (2010)

Rare earth nickelates exhibit a reversible metal-semiconductor phase transition that is, in the infrared range, responsible for a thermo-optical contrast. The state of the art synthesis of these compounds usually requires high oxygen pressure to stabilize Ni in the oxidation state 3+. In this work, using polymeric precursor associated with moderate pressure annealing, we show that it is possible to obtain fully oxidized rare earth nickelate with metal-insulator transition. Using thermogravimetric analysis, X-ray diffraction and transmission electronic microscopy we compare different samples synthesized at different oxygen pressures and demonstrate their structural similarity. Thermo-optical properties were measured, in the infrared range, using reflectance measurements and confirmed the metal-insulator transition at 60 °C in both samples.TEM observations lead to the conclusion that the structure commonly obtained at 175 bar is perfectly observed in the 20 bar sample without major structural defects. The two samples exhibit a thermochromic behavior and thermo-optical properties of the two samples are equivalent.

The coupled TG-MS investigations of lanthanide(III) nitrate complexes with hexamethylenetetramine


, p. 525 - 534 (2004)

New transition metal compounds of the general formula Ln(NO 3)3·2[N4(CH2) 6]·nH2O, where Ln = La, Nd, Sm, Gd, Tb, Dy, Er, Lu, and n = 7-12, were obtained. The compounds and the gases evolve

Complexation thermodynamics of rare earth (III) with crown ethers. 31.Calorimetric titration of light lanthanoid (III) nitrates with dibenzo-18-crown-6 in acetonitrile

Liu, Yu,Han, Baohang,Zhang, Zhihui,Guo, Jihui,Chen, Yunti

, p. 1 - 6 (1998)

Calorimetric titrations have been performed in anhydrous acetonitrile at 25°C to give the complex stability constants (Ks) and the thermodynamic quantities for the complexation of light lanthanoid (III) nitrates (La-Gd) with 2,3,11,12-dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene (dibenzo-18-crown-6) (2). Data analyses, assuming 1 : 1 stoichiometry were successfully applied to all the light lanthanoid-crown ether combinations employed. Using the present and reported data, the complexation behaviors of (2) and 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) (1) are compared from the thermodynamic point of view. The rigid structure of (2), as compared with (1), gave the higher Ks for Nd3+ and Sm3+ among the light lanthanoid nitrates. The complex stability sequence as a function of reciprocal ionic diameter of lanthanoid showed a monotonically declining pattern for (1) except for a jump at Ce3+, and a characteristic peak profile at Nd3+ and Sm3+ for (2). Thermodynamically, the complexation of light lanthanoid nitrates with 18-crown-6 is mainly enthalpy-driven in acetonitrile, but the complexation with (2) is chiefly entropy-driven.

Synthesis of Ba4R3F17 (R stands for rare-earth elements) powders and transparent compacts on their base


, p. 484 - 493 (2010)

Single-phase samples of Ba4R3F17 ? nH2O (R = La, Ce, Pr, Nd, Eu, Gd, Y, Er, or Yb; n = 2.5-3.2) were prepared by coprecipitation from nitrate solutions using hydrofluoric acid. The phases crystallize in a fluorite-type face-centered cubic lattice. The dried precipitates are transparent. Scanning electron and atomic-force microscopy and X-ray diffraction line broadening show a hierarchic structure in the samples: primary nanoparticles join into agglomerates with characteristic sizes of about 150-200 nm, these agglomerates being self-packed into parallel layers with a thickness on the order of 500 nm.

Thermodynamic characterization of rare earth salts of strong polyacid copolymers

Horvath, Judit,Nagy, Miklos

, p. 5140 - 5148 (2007)

Stoichiometric La3+, Ce3+, and Nd3+ salts of poly[(vinyl alcohol)-co-(vinyl sulfate)] (PVAS) copolymer polyacids have been studied in aqueous solution without added salt. All LnPVAS salts were entirely watersoluble in the composition and concentration range investigated. Ratios of the vinyl sulfate and vinyl alcohol units in the copolymers were between 1:5 and 1:107, leading to structural charge densities both above and under the critical value needed for counterion condensation of trivalent counterions. Solvent activity, a1, has been measured by the gel deswelling method in the concentration range of 5 × 10-4 to 1 × 10-1 mol of counterion/kg of water (0.2-9 w/w% of the poly electrolyte). Results are unusually high for polyelectrolytes (-2 × 10-6 > In a 1 > -3 × 10-4), and they are comparable with values determined in solutions of uncharged polymers. Nevertheless, the different copolymers can be clearly distinguished; the water activity is lowered in the order of the vinyl sulfate content of the polyelectrolytes, except for the one above the critical charge density. No observable difference was caused in the thermodynamic properties by the different lanthanide counterions. Reduced osmotic pressure curves and Flory-Huggins pair interaction parameters have been calculated; both of them were used to estimate degrees of dissociation at zero as well as at finite concentrations. Degrees of dissociation are decreasing with increasing concentration or vinyl sulfate content of the copolymer. They take values between 8-36% at zero polymer concentration and they reach zero value simultaneously at ~1 × 10-3 mol of polymer chains/kg of water. The average number of released counterions per polymer chain (DP n = 1005) approaches to a limit of about 4.4 with increasing vinyl sulfate content. This corresponds to average charge distances of b ≥ 19 nm and charge density parameters of ξ ≤ 0.037. The latter is, however, a very low value and indicates a 1/9 contraction compared to the rod-like assumption.

Thermal, spectral and magnetic behaviour of 4-chloro-2-methoxybenzoates of light lanthanides(III)

Ferenc, Wieslawa,Cristovao,Sarzynski,Wojciechowska, Maria

, p. 877 - 883 (2007)

4-Chloro-2-methoxybenzoates of light lanthanides(III) were obtained as mono-, di-or trihydrates with metal to ligand ratio of 1:3 and general formula Ln(C8H6ClO3)3?nH2O, where n=1 for Ln=Ce, Pr, n=2 for Ln=Nd, Sm, Eu, Gd and n=3 for Ln=La. The complexes were characterized by elemental analysis, IR spectra, thermogravimetric studies, X-ray diffraction and magnetic measurements. The carboxylate group appears to be a symmetrical bidentate, chelating ligand. All complexes seem polycrystalline compounds. Their thermal stabilities were determined in air. When heated they dehydrate to form anhydrous salts which next are decomposed to the oxides of the respective metals. The solubilities of light lanthanide(III) 4-chloro-2-methoxybenzoates in water at 293 K are of the order of 10-5 mol dm-3. The magnetic moments were determined over the range of 77-300 K. They obey the Curie-Weiss law. The values of μeff calculated for all compounds are close to those obtained for Ln3+ by Hund and Van Vleck. The results indicate that there is no influence of the ligand field of 4f electrons on lanthanide ions and the metal ligand bonding is mainly electrostatic in nature.

Selwood, P. W.

, p. 1799 - 1805 (1931)

Synthesis and characterization of nanocrystalline Nd3+-doped gadolinium scandium aluminum garnet powders by a gel-combustion method

Su, Jing,Miao, Ju-Hong,Xu, Lin-Hua,Ji, Yu-Qing,Wang, Chu-Qin

, p. 1709 - 1712 (2012)

Nd3+-doped gadolinium scandium aluminum garnet (Nd:GSAG) precursor was synthesized by a gel combustion method using metal nitrates and citric acid as raw materials. The structure and morphology of the precursor and the sintered powders were studied by means of X-ray diffraction (XRD), infrared spectroscopy (IR) and transmission electron microscopy (TEM). The results showed that the precursor transformed into pure GSAG polycrystalline phase at about 800 °C, and the powders sintered at 800-1000 °C were well-dispersed with average particle sizes in the range of 30-80 nm. Optical properties of Nd:GSAG nano-powders were characterized by using photoluminescence spectroscopy. The highest photoluminescence intensity was achieved for the powder sintered at 900 °C.

Synthesis and characterization of neodymium oxide nanoparticles

Zawadzki, Miros?aw,K?piński, Leszek

, p. 255 - 259 (2004)

The nanometric precursors of neodymium oxide of various morphology from fibrous to well-dispersed spheroidal were prepared via a solvothermal reaction routes. The precursors and their thermal evolution to neodymium oxide phase were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). It was found that the reaction parameters, kind of solvent as well as neodymium salt used played a key role for the product formation of desired morphology and structure. Similarly, kind of neodymium oxide precursor determined the morphology and the crystal structure (haxagonal or cubic) of the final oxide. The potential application of Nd2O3 precursors prepared by solvothermal method as convenient material for preparation of homogeneous thin coatings on planar substrates is shown.

A New Octadecanuclear Copper(II)-Lanthanide(III) Cluster Complex: Synthesis and Structural Characterization of [Cu12Nd 6(OH)24(betaine)16(NO3) 3(H2O)10](NO3)[PF6] 14·5H2O

Yang, Yang-Yi,Huang, Zhong-Qi,He, Feng,Chen, Xiao-Ming,Ng, Seik Weng

, p. 286 - 290 (2004)

The new octadecanuclear Cu-Ln complex, [Cu12Nd 6(OH)24(betaine)16(NO3) 3(H2O)10](NO3)[PF6] 14·5H2O, was synthesized, which crystallizes in triclinic P1 space group, a = 18.649(6) A, b = 20.363(7) A, c = 19.865(7) A, α = 116.61(2)°, β = 91.99(2)°, γ = 117.93(2)°, V = 5666(3) A3. Its crystal structure features a [Cu12Nd6(OH)24(betaine) 16(NO3)3(H2O)10] 15+ core of pseudocubic Oh symmetry, with the six Nd ions positioned at the vertices of a regular octahedron and the twelve Cu ions located at the midpoints of the twelve octahedral edges. The Cu-Nd metal framework may be viewed as a cuboctahedron, which is interconnected by twenty-four μ3-OH bridges that are each linked to one Nd ion and two Cu ions. In the centre of metal polyhedron, there is an encapsulated NO 3- anion that exhibits a multi- coordinating mode.

Synthesis of reactive neodymia-doped zirconia powders by the sol-gel technique


, p. 175 - 178 (2002)

Zirconia-x mol% neodymia (x = 3, 5 and 8) solid solutions were prepared by the sol-gel technique. The aim of this work is to obtain reactive ceramic powders with high structural homogeneity using a simple method of solid solution synthesis. Powder characterization comprises: thermal analyses to study the decomposition behavior of the precursor; laser scattering to obtain the particle size distribution; scanning electron microscopy to observe shape and size of the agglomerated particles; X-ray diffraction experiments on sintered specimens for phase characterization, and dilatometric experiments to obtain the linear shrinkage of a powder compact.

Synthesis, morphology and spectroscopy of Nd:GSAG nano-powders

Su, Jing,Yao, Yijun,Liu, Bin,Xu, Linhua

, p. 25 - 27 (2012)

Nd3+-doped gadolinium scandium aluminum garnet (Nd:GSAG) precursors were obtained from a mixed nitrate solution with precipitant of ammonium hydrogen carbonate. The precursors were sintered at different temperatures and the phase developments in heat treatments were investigated through methods of XRD and IR, showing the precursors transformed to pure-GSAG phase with no intermediate phases appeared at 900 °C. The TEM observation revealed that the powders sintered at 900-1000 °C were well-dispersed with average crystalline sizes of 30-80 nm. Photoluminescence analysis of the Nd:GSAG nano-powders showed that the PL intensities changing significantly with the Nd3+ doping concentration, and the concentration quenching was observed as the Nd3+ concentration reached to 1.5 at.%.

Thermoanalytical and spectroscopic studies on hydrazinium lighter lanthanide complexes of 2-pyrazinecarboxylic acid

Premkumar, Thathan,Govindarajan, Subbiah

, p. 725 - 732 (2010)

The new hydrazinium lanthanide metal complexes of 2-pyrazinecarboxylic acid (HpyzCOO) of the formulae (N2H5)2[Ln(pyzCOO) 5] ? 2H2O (1), where Ln = La or Ce and (N 2H5)3/sub

NIR emission in Ba2SiO4:Eu2+, Nd3+ phosphors with near UV/violet excitation

Vyas, Arpita,Joshi,Sahare,Moharil

, p. 789 - 794 (2018)

New results on NIR emission in Ba2SiO4:Eu2+, Nd3+ phosphors are reported. Though excitation for Eu2+ emission is in predominantly near UV (nUV) region, that for the Nd3+ emission around 106

Generalized synthesis of NaLn(MoO4)2 nano/microcrystals (Ln = La–Lu and Y): The effects of lanthanide contraction, structure, and down-/up-conversion luminescence

Li, Ji-Guang,Li, Siyuan,Meng, Qinghong,Wang, Xuejiao,Xu, Zhixin,Zhu, Qi

, (2020/03/17)

Systematic synthesis of scheelite-type double molybdate nano-/microcrystals NaLn (MoO4)2 (Ln = La–Lu lanthanides and Y) was successfully carried out via hydrothermal reaction at 180 °C without using any organic additive, and the intrinsic effects of lanthanide contraction on phase preference and crystallite morphology were unambiguously observed. It was shown that the products of larger Ln3+ (Ln = La–Dy) and smaller Ln3+ (Ln = Ho–Lu and Y) elements crystallized as tetragonal NaLn (MoO4)2 and new orthorhombic NaLnMo2O8·2H2O structures, respectively, with the latter being able to dehydrate to tetragonal NaLn (MoO4)2 upon calcination at ~300 °C. Y was found to be a demarcation point for the two structures, and phase preference was shown to be influenced by solution pH and MoO42?/Y3+ molar ratio. With Eu3+ as a downconversion (DC) luminescence probe, the effects of Ln type (Ln = La, Gd, Y and Lu) and crystal structure were manifested. Furthermore, the upconversion (UC) luminescence of Yb3+/Ho3+ and Yb3+/Er3+ pairs in NaLu(MoO4)2 was studied for the first time, and strong red and green UC emissions were observed under the 978 nm laser excitation. Besides, the processes/mechanisms of UC were studied via varying the excitation power and were discussed with Yb3+-MoO42- dimer sensitizer.

Step by step designing of sensitive luminescent nanothermometers based on Cr3+,Nd3+ co-doped La3-: XLuxAl5- yGayO12 nanocrystals


, p. 12614 - 12622 (2019/08/21)

In this work we present step by step designing of sensitive luminescent thermometers utilizing Cr3+,Nd3+ co-doped La3-xLuxAl5-yGayO12 garnets. In order to achieve this purpose, modification of the local ion environment by the adjustment of the La3+ to Lu3+ and the Al3+ to Ga3+ ion ratios was performed. Additionally, the influence of the Cr3+ and Nd3+ ion concentration on the thermal quenching of Cr3+ luminescence was investigated. All of the abovementioned steps of the host stoichiometry optimization enabled us to obtain a relative sensitivity of luminescent thermometers based on the luminescence intensity ratio of Nd3+(4F5/2 → 4I9/2)/Cr3+(2E → 4A2) electronic transitions as high as S = 1.47% °C-1 at -150 °C and S = 1.23% °C-1 at 260 °C for La2LuGa5O12:1%Cr3+,5%Nd3+ nanocrystals. The presented studies provide the verification how stoichiometry of host material affect the relative sensitivity of transition metal/lanthanide ion based luminescent thermometers, enabling knowledgeable designing of highly sensitive luminescent thermometers.

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