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Merck

930911

Sigma-Aldrich

Praseodymium nitrate hexahydrate

99.99% (trace rare earth metals basis)

Sinónimos:

Praseodymium(III) nitrate hexahydrate, Nitric acid praseodymium(3+) salt, Praseodymium trinitrate, Praseodymium trinitrate hexahydrate

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About This Item

Fórmula lineal:
Pr(NO3)3·6H2O
Número de CAS:
Peso molecular:
435.01
MDL number:
UNSPSC Code:
12352302
NACRES:
NA.54

assay:
99.99% (trace rare earth metals basis)
form:
crystals
solubility:
H2O: soluble ((lit.))
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Quality Level

assay

99.99% (trace rare earth metals basis)

form

crystals

impurities

≤150 ppmtrace (rare earth metals)
≤500 ppm (trace metals)

mp

<100 °C ((lit.))

solubility

H2O: soluble ((lit.))

density

2.233 g/cm3 ((lit.))

SMILES string

O.O.O.O.O.O.[Pr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O

InChI

1S/3NO3.6H2O.Pr/c3*2-1(3)4;;;;;;;/h;;;6*1H2;/q3*-1;;;;;;;+3

InChI key

LXXCECZPOWZKLC-UHFFFAOYSA-N

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Este artículo
82800119490120871
solubility

ethanol: soluble 50 mg/mL, clear, colorless to light yellow

solubility

-

solubility

ethanol: soluble 5%, clear, colorless to light yellow

solubility

ethanol: soluble 100 mg/mL, clear, colorless

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

bp

222-224 °C (lit.)

bp

222-224 °C (lit.)

bp

-

bp

266 °C (lit.)

mp

145-147 °C (lit.)

mp

143-147 °C, 145-147 °C (lit.)

mp

92-94 °C (lit.)

mp

79-81 °C (lit.)

General description

Praseodymium nitrate is a green, crystalline salt commonly found as a hexahydrate. The salt is soluble in polar solvents including water, alcohols, amines, ethers, and acetonitrile. Like many trivalent nitrates, praseodymium nitrate has a low thermal decomposition temperature with onset temperature of 100 °C. Praseodymium nitrate is produced from ores rich in rare earth metals. Dissolving the ores in nitric acid yields solutions of rare earth nitrates, which can be separated by solvent extraction, isolated into individual rare earth metals, and purified.

Application

Praseodymium nitrate is used in the preparation of praseodymium-doped materials and praseodymium compounds because it is one of the most convenient sources of praseodymium ions. Owing to its high solubility and low thermal decomposition temperature, praseodymium is a particularly useful reagent in reactions that use sol-gel processing and hydrothermal-calcination methods. Like other rare earth metals, praseodymium has a cloud of shielded f-electrons, which allow for long excited state lifetimes and high luminescence yields. Because of these properties, Pr-doped materials and Pr-compounds are used as phosphors in optics and added to oxides used in ceramics for colorful effects. Researchers continue to find ways to leverage the unique optical effects. For example, praseodymium metal-organic frameworks synthesized using Pr(NO3)3 have been explored for luminescence-sensing of small molecules [1] and Pr-doped metal oxides researched for improved optical thermometry [2]. Another common application of praseodymium nitrate is the synthesis of double perovskite oxides for solid-oxide fuel cells (SOFC). For example, researchers have shown that praseodymium cobaltites,[3] praseodymium manganates,[4] and praseodymium nickelates [5] offer excellent ionic and electronic conductivities for SOFCs at intermediate temperatures above 400 °C. The unique band structure afforded by Pr3+ ions stabilizes oxygen vacancies, which are integral to ionic diffusion.[5] [6]

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Referencia del producto
Descripción
Precios

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Warning

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Ox. Sol. 3 - Skin Irrit. 2

Storage Class

5.1B - Oxidizing hazardous materials

wgk_germany

WGK 2


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A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States.
Gao, Y., et al.
Advances in Functional Materials, 26, 3139?3145-3139?3145 (2016)
Praseodymium and gadolinium doped ceria as a cathode material for low temperature solid oxide fuel cells.
Chockalingam, R., et al.
Journal of Power Sources, 250, 80-89 (2014)
Self-sustainable protonic ceramic electrochemical cells using a triple conducting electrode for hydrogen and power production.
Ding, H., et al.
Nature Communications, 11, 1907-1907 (2020)
Intermediate-temperature electrochemical performance of a polycrystalline PrBaCo2O5+delta cathode on samarium-doped ceria electrolyte
Chen, D., et al.
Journal of Power Sources, 188, 96-105 (2009)
Lanthanide metal?organic frameworks containing a novel flexible ligand for luminescence sensing of small organic molecules and selective adsorption.
Wang, X., et al.
Journal of Material Chemistry A, 3, 12777-12785 (2015)

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