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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

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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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)
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
H John Cooper et al.
The Journal of bone and joint surgery. American volume, 95(10), 865-872 (2013-05-17)
Femoral stems with dual-taper modularity were introduced to allow additional options for hip-center restoration independent of femoral fixation in total hip arthroplasty. Despite the increasing availability and use of these femoral stems, concerns exist about potential complications arising from the
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