12305-84-9

Basic information

• Product Name: SAMARIUM COBALT POWDER (2:7)
• Synonyms: SAMARIUM COBALT POWDER (2:7);powder2:7;cobalt compound with samarium;Samarium cobalt, 99.5% (metals basis), Sm 42%;Samarium cobalt powder
• CAS NO: 12305-84-9
• Molecular Formula: CoSm
• Molecular Weight: 209.2932
• EINECS: 235-573-8
• Mol File: 12305-84-9.mol

Chemical Properties

• Appearance: /powder
• Water Solubility: It is insoluble in water, but soluble in acids.
• CAS DataBase Reference: SAMARIUM COBALT POWDER (2:7)(CAS DataBase Reference)
• NIST Chemistry Reference: SAMARIUM COBALT POWDER (2:7)(12305-84-9)
• EPA Substance Registry System: SAMARIUM COBALT POWDER (2:7)(12305-84-9)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• Hazardous Substances Data: 12305-84-9(Hazardous Substances Data)

Usage

Uses

Used in Catalyst and Chemical Reagent Applications:
Samarium Cobalt Powder (2:7) is used as a catalyst and chemical reagent in the chemical industry. Its unique properties make it an effective component in various chemical reactions and processes.
Used in Ceramics and Glass Industry:
In the ceramics and glass industry, Samarium Cobalt Powder (2:7) is used to increase the absorption of infrared light. When added to ceramics and glasses in its usual oxidized form, it enhances the material's properties and performance.
Used in Nuclear Reactor Control Rods:
Samarium-149, a component of Samarium Cobalt Powder (2:7), has a high cross-section for neutron capture. This characteristic makes it an essential material for the control rods in nuclear reactors, where it plays a crucial role in regulating the nuclear fission process.

InChI:InChI=1/Co.Sm

Upstream product

• 7440-19-9 samarium 
• 7440-48-4 cobalt 
• 10361-82-7 samarium(III) chloride 

Relevant articles and documents

Electrodeposition of Sm-Co nanoparticles from aqueous solutions

Supported Sm-Co nanoparticles have been synthesized by short pulse electrodeposition using aqueous solutions containing glycine as complexant and buffering agent. Nanoparticle composition is a function of pulse amplitude and pulse duration. Short pulses in particular minimize oxygen incorporation, down to 3 at%. X-ray photoelectron spectroscopy and X-ray diffraction data support the hypothesis that metallic alloys have indeed been obtained by this technique, along with mixed oxides of the metals. In-plane coercivities of up to 5.3 kOe have been achieved in as-plated nanoparticle assemblies when the relative Sm content was about 20 at% and particle size around 80 nm. These Sm-Co nanoparticles hold the promise to be a practical and inexpensive material for use in the synthesis of permanent magnets by powder processing.

Ternary system Sm-Co-Zr isoplethic section at Co = 89 at.%

A knowledge of solid-liquid equilibria is necessary to optimise sintering temperature in industrial Sm2Co17-type magnets. A single-phase state is reported as precursor of the cellular microstructure of the Sm2Co17 permanent magnets. The formation of this phase at high temperature seems for a large part to be governed by Zr addition. In order to understand the behaviour of 2:17-type magnets, phase relationships have been investigated in the Co-rich field of the Sm-Co-Zr system. The 1150°C isothermal section has been reinvestigated. A two-phase region was observed involving hexagonal and rhombohedral Sm2Co17. An isoplethic section has been drawn for temperatures between 1150°C and the melting points of the alloy with Co = 89 at.%, (Sm + Zr) = 11 at.%. Two four-phase equilibria have been observed. A tentative polythermal representation of the Sm-Co-Zr system in the Co-rich field has been drawn.

Structure and magnetic properties of mechanically alloyed SmxCo1-x

A study of the phase structure and magnetic properties of mechanically alloyed and heat-treated SmxCo1-x with x=0.13 to 0.24 has been carried out. Remanence enhancement above 0.5 Ms(Ms=saturation magnetisation) was found in samples with x=0.12 to 0.17 after annealing at 700 °C. A maximum energy product of 16.6 M G Oe was measured for Sm0.13Co0.87. Coercive forces above 50 kOe were obtained for x=0.17-0.20 after heat treatment at approximately 800 °C. The highest value of 57 kOe was measured for Sm0.19Co0.81.