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Cobalt

Catalog No. 697745 Name Sigma Aldrich
CAS Number 7440-48-4 Website http://www.sigmaaldrich.com
M. F. Co Telephone 1-800-521-8956
M. W. 58.9332 Fax
Purity ≥99% Email
Storage Chembase ID: 107755

SYNONYMS

Title
IUPAC name
cobalt
IUPAC Traditional name
cobalt
Synonyms
磁性钴
碳包覆钴纳米粒子

DATABASE IDS

MDL Number MFCD00010935
CAS Number 7440-48-4

PROPERTIES

Compostion Carbon content, <8 wt. %
Empirical Formula (Hill Notation) Co
Particle Size <50 nm (TEM)
Purity ≥99%
Surface Area BET surf. area >15 m2/g
Apperance nanopowder
Boiling Point 2900 °C(lit.)
Density 8.9 g/mL at 25 °C(lit.)
Magnetization >150 emu/g Mass saturation
Resistivity 6.24 μΩ-cm, 20°C
GHS Pictograms GHS08
GHS Signal Word Danger
GHS Hazard statements H317-H334-H413
European Hazard Symbols Harmful Harmful (Xn)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Faceshields, Gloves
GHS Precautionary statements P261-P280-P342 + P311
RID/ADR UN 3089 4.1/PG 2
Risk Statements 42/43-53
Safety Statements 22-36/37-45
Hazard Class 4.1
UN Number 3089
Packing Group 2
German water hazard class 3

DETAILS

Description (English)
Application
Air- and thermally-stable magnetic carbon-coated cobalt nanoparticles (nanomagnets). Carbon shell consists of approximately three graphitic layers and can be chemically functionalized using e.g. diazotization reactions.1
Packaging
500 mg in glass bottle
Protocols & Applications
Chemical Synthesis of Monodisperse Magnetic Nanoparticles
Description (简体中文)
Application
空气和热稳定的磁性碳包覆钴纳米粒子(纳米磁体)。碳壳由大约三层石墨构成,可使用例如重氮化反应对其进行化学官能化。1
包装
500 mg in glass bottle
Protocols & Applications
Chemical Synthesis of Monodisperse Magnetic Nanoparticles

REFERENCES