Nanjing Xuang Chemical Co., Ltd.
9Products, 0News, 0Sell Leads
Products
Neodymium
Neodymium
Inquire Now
Description
Neodymium is a chemical element with the symbol Nd and atomic number 60. It is a soft silvery metal that tarnishes in air. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach. It is present in significant quantities in the ore minerals monazite and bastn?Site. Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Although neodymium is classed as a "rare earth", it is a fairly common element, no rarer than cobalt, nickel, and copper ore, and is widely distributed in the Earth's crust. [2] Most of the world's neodymium is mined in China.
Features
Chemical Element Glass Dyes
Lanthanide Rare-Earth Metals Neodymium(III) Oxide
Neodymium Glass Glass Coloration
Lanthanide Rare-Earth Metals Neodymium(III) Oxide
Neodymium Glass Glass Coloration
Specification
General properties
Name, symbol , number neodymium, Nd, 60
Appearance silvery white
Element category lanthanide
Group , period , block n/a , 6 , f
Standard atomic weight 144.242
Electron configuration [ Xe ] 4f 4 6s 2
2, 8, 18, 22, 8, 2
History
Discovery Carl Auer von Welsbach (1885)
Physical properties
Phase solid
Density (near r.t. ) 7.01 g@cm −3
Liquid density at m.p. 6.89 g@cm −3
Melting point 1297 K , 1024 蚓, 1875 蚌
Boiling point 3347 K, 3074 蚓, 5565 蚌
Heat of fusion 7.14 kJ@mol −1
Heat of vaporization 289 kJ@mol −1
Molar heat capacity 27.45 J@mol −1 @K −1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1595 1774 1998 (2296) (2715) (3336)
Atomic properties
Oxidation states 3 , 2, 1
(mildly basic oxide)
Electronegativity 1.14 (Pauling scale)
Ionization energies 1st: 533.1 kJ@mol −1
2nd: 1040 kJ@mol −1
3rd: 2130 kJ@mol −1
Atomic radius 181 pm
Covalent radius 201? pm
Miscellanea
Crystal structure hexagonal
Magnetic ordering paramagnetic , antiferromagnetic below 20 K [ 1 ]
Electrical resistivity ( r.t. ) (α, poly) 643 nΩ@m
Thermal conductivity 16.5 W@m −1 @K −1
Thermal expansion ( r.t. ) (α, poly) 9.6 痠/(m@K)
Speed of sound (thin rod) (20 蚓) 2330 m@s −1
Young's modulus (α form) 41.4 GPa
Shear modulus (α form) 16.3 GPa
Bulk modulus (α form) 31.8 GPa
Poisson ratio (α form) 0.281
Vickers hardness 343 MPa
Brinell hardness 265 MPa
CAS registry number 7440-00-8
Most stable isotopes
Main article: Isotopes of neodymium
iso NA half-life DM DE ( MeV ) DP
142 Nd 27.2% 142 Nd is stable with 82 neutrons
143 Nd 12.2% 143 Nd is stable with 83 neutrons
144 Nd 23.8% 2.29?0 15 y α 1.905 140 Ce
145 Nd 8.3% >6?0 16 y α 1.5784 141 Ce
146 Nd 17.2% 146 Nd is stable with 86 neutrons
148 Nd 5.7% >3.0?0 18 y α 0.5986 144 Ce
β − β − 1.9288 148 Sm
150 Nd 5.6% 6.7?0 18 y β − β − 3.367 150 Sm
Name, symbol , number neodymium, Nd, 60
Appearance silvery white
Element category lanthanide
Group , period , block n/a , 6 , f
Standard atomic weight 144.242
Electron configuration [ Xe ] 4f 4 6s 2
2, 8, 18, 22, 8, 2
History
Discovery Carl Auer von Welsbach (1885)
Physical properties
Phase solid
Density (near r.t. ) 7.01 g@cm −3
Liquid density at m.p. 6.89 g@cm −3
Melting point 1297 K , 1024 蚓, 1875 蚌
Boiling point 3347 K, 3074 蚓, 5565 蚌
Heat of fusion 7.14 kJ@mol −1
Heat of vaporization 289 kJ@mol −1
Molar heat capacity 27.45 J@mol −1 @K −1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1595 1774 1998 (2296) (2715) (3336)
Atomic properties
Oxidation states 3 , 2, 1
(mildly basic oxide)
Electronegativity 1.14 (Pauling scale)
Ionization energies 1st: 533.1 kJ@mol −1
2nd: 1040 kJ@mol −1
3rd: 2130 kJ@mol −1
Atomic radius 181 pm
Covalent radius 201? pm
Miscellanea
Crystal structure hexagonal
Magnetic ordering paramagnetic , antiferromagnetic below 20 K [ 1 ]
Electrical resistivity ( r.t. ) (α, poly) 643 nΩ@m
Thermal conductivity 16.5 W@m −1 @K −1
Thermal expansion ( r.t. ) (α, poly) 9.6 痠/(m@K)
Speed of sound (thin rod) (20 蚓) 2330 m@s −1
Young's modulus (α form) 41.4 GPa
Shear modulus (α form) 16.3 GPa
Bulk modulus (α form) 31.8 GPa
Poisson ratio (α form) 0.281
Vickers hardness 343 MPa
Brinell hardness 265 MPa
CAS registry number 7440-00-8
Most stable isotopes
Main article: Isotopes of neodymium
iso NA half-life DM DE ( MeV ) DP
142 Nd 27.2% 142 Nd is stable with 82 neutrons
143 Nd 12.2% 143 Nd is stable with 83 neutrons
144 Nd 23.8% 2.29?0 15 y α 1.905 140 Ce
145 Nd 8.3% >6?0 16 y α 1.5784 141 Ce
146 Nd 17.2% 146 Nd is stable with 86 neutrons
148 Nd 5.7% >3.0?0 18 y α 0.5986 144 Ce
β − β − 1.9288 148 Sm
150 Nd 5.6% 6.7?0 18 y β − β − 3.367 150 Sm
Safety/Quality Approvals
SGS
Other 1
Neodymium compounds were first commercially used as glass dyes in 1927, and they remain a popular additive in glasses. The color of neodymium compounds?Due to the Nd3+ ion?Is often a reddish-purple but it changes with the type of lighting, due to fluorescent effects. Some neodymium-doped glasses are also used in lasers that emit infrared light with wavelengths between 1047 and 1062 nanometers. These have been used in extremely high power applications, such as experiments in inertial confinement fusion.
Neodymium is also used with various other substrate crystals, such as yttrium aluminum garnet in the Nd: YAG laser. This laser usually emits infrared waves at a wavelength of about 1064 nanometers. The Nd: YAG laser is one of the most commonly used solid-state lasers.
Another chief use of neodymium is as the free pure element. It is used as a component in the alloys used to make high-strength neodymium magnets powerful permanent magnets. [3] These magnets are widely used in such products as microphones, professional loudspeakers, in-ear headphones, and computer hard disks, where low magnet mass or volume, or strong magnetic fields are required. Larger neodymium magnets are used in high power versus weight electric motors (for example in hybrid cars) and generators (for example aircraft and wind turbine electric generators).
Neodymium is also used with various other substrate crystals, such as yttrium aluminum garnet in the Nd: YAG laser. This laser usually emits infrared waves at a wavelength of about 1064 nanometers. The Nd: YAG laser is one of the most commonly used solid-state lasers.
Another chief use of neodymium is as the free pure element. It is used as a component in the alloys used to make high-strength neodymium magnets powerful permanent magnets. [3] These magnets are widely used in such products as microphones, professional loudspeakers, in-ear headphones, and computer hard disks, where low magnet mass or volume, or strong magnetic fields are required. Larger neodymium magnets are used in high power versus weight electric motors (for example in hybrid cars) and generators (for example aircraft and wind turbine electric generators).
About Us
The main products of Nanjing Xuang Chemical Co., Ltd. include carbonates, nitrates, fluoride, chloride, hydroxide, acetate, caprylate, oxide and cerium ammonium nitrate, cerium, zirconium, lanthanum, cerium, zirconium oxide, yttrium and other products, which are made of 15 kinds of rare earth elements, such as lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, dysprosium, terbium, holmium, erbium, thulium, ytterbium, lutetium, yttrium. Our products can meet clients' different needs on the aspects of product purity, particle size, activity, specific gravity, surface area, turbidity and other specifications.
Xuang is also an expert in the fields covering oil, plastics and so on. The main products of these fields include: crude oil, petroleum products, lubricating agents, petroleum catalysts, oil additives, fire resistant hydraulic oil, thermal oil; plastic raw materials, polyethylene, k resin, ABS alloy, plastic additives; film-forming material, pigment, filler, paint additives, resin raw materials, automotive coatings, wood coatings, paint solvents, marine coatings, road paint, light industrial coatings, rubber coatings and chemical additives. All of them guarantee that we can meet different needs of clients home and abroad.
Established Date: 2013/1/1
No. of Employees: 50 Persons
Business Type: Manufacturer/OEM
Main Products
Chemical raw material