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697745

Sigma-Aldrich

Cobalt

Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%

Synonyme(s) :

Cobalt element, Cobalt-59

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About This Item

Formule empirique (notation de Hill):
Co
Numéro CAS:
7440-48-4
Poids moléculaire :
58.93
Numéro MDL:
MFCD00010935
Code UNSPSC :
12352302
ID de substance PubChem :
329761949
Nomenclature NACRES :
NA.23

Matériaux

carbon

Pureté

≥99%

Forme

nanopowder

Composition

Carbon content, <8 wt. %

Magnétisation

>150 emu/g, Mass saturation

Résistivité

6.24 μΩ-cm, 20°C

Superficie

>15 m2/g

Taille des particules

<50 nm (TEM)

Point d'ébullition

2900 °C (lit.)

Densité

8.9 g/mL at 25 °C (lit.)

Application(s)

battery manufacturing

Chaîne SMILES 

[Co]

InChI

1S/Co

Clé InChI

GUTLYIVDDKVIGB-UHFFFAOYSA-N

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Catégories apparentées

Application

Chemical Synthesis of Monodisperse Magnetic Nanoparticles
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.

Pictogrammes

Skull and crossbonesHealth hazardEnvironment
GHS06,GHS08,GHS09

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 1 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Irrit. 2 - Muta. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2

Code de la classe de stockage

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
MKCN2148
MKCL5254
MKCH2748
MKCD8588
MKCB1778V

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Alexander Schätz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 14(27), 8262-8266 (2008-07-31)
TEMPO was grafted on graphene-coated nanobeads with a magnetic cobalt core by using a general applicable "click"-chemistry protocol. The new heterogeneous CoNP-TEMPO emerged as a highly active catalyst for the chemoselective oxidation of primary and secondary alcohols using bleach as
Chun Ghee Tan et al.
Chemical communications (Cambridge, England), (36), 4297-4299 (2008-09-20)
To develop magnetic nanomaterials applicable to organic synthesis, the Suzuki cross-coupling method was adapted to attach a range of functional groups to carbon-coated core-shell materials via commercially-available substituted arylboronic acids.
Luechinger, N.A.; Booth, N.; Heness, G.; Bandyopadhyay, S.; Grass, R.N.; Stark W.J.
Advanced Materials, 20, 3044-3044 (2008)
Covalently functionalized cobalt nanoparticles as a platform for magnetic separations in organic synthesis.
Robert N Grass et al.
Angewandte Chemie (International ed. in English), 46(26), 4909-4912 (2007-05-23)
D W Su et al.
Journal of nanoscience and nanotechnology, 13(5), 3354-3359 (2013-07-19)
Highly ordered mesoporous Co3O4 nanostructures were prepared using SBA-15 silica as hard templates. The mesoporous structures were characterized by X-ray diffraction, high resolution transmission electron microscopy, and N2 adsorption/desorption isotherm analysis. The results demonstrated that the as-prepared mesoporous Co3O4 has
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