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
• Article Data: 3

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

It can be used as catalyst and chemical reagent. In its usual oxidized form, samarium is added to ceramics and glasses where it increases absorption of infrared light. Samarium-149 has high cross-section for neutron capture and is therefore used in the control rods of nuclear reactors.

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.

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.