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266639

Sigma-Aldrich

Cobalt

powder, 2 μm particle size, 99.8% trace metals basis

Synonym(s):

Co

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About This Item

Empirical Formula (Hill Notation):
Co
CAS Number:
7440-48-4
Molecular Weight:
58.93
EC Number:
231-158-0
MDL number:
MFCD00010935
UNSPSC Code:
12161600
PubChem Substance ID:
24856150
NACRES:
NA.22
Pricing and availability is not currently available.

Assay

99.8% trace metals basis

form

powder

reaction suitability

core: cobalt
reagent type: catalyst

resistivity

6.24 μΩ-cm, 20°C

particle size

2 μm

bp

2900 °C (lit.)

density

8.9 g/mL at 25 °C (lit.)

SMILES string

[Co]

InChI

1S/Co

InChI key

GUTLYIVDDKVIGB-UHFFFAOYSA-N

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Application

Cobalt powder has been used in the preparation of cobalt-based alloys and composites as anode materials.[1][2][3]
It can be also used:
  • In the preparation of soft magnetic materials by powder metallurgical processes.[4]
  • As a catalyst in the transformation of ethanol to 1-butanol.[5]

Analysis Note

Average particle size determined by Fisher sub-sieve sizer

Signal Word

Danger

Hazard Classifications

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. 1B - Skin Sens. 1 - STOT RE 2

Storage Class Code

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

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV8578
MKCN6097
MKCC1622
MKBQ5191V
MKBG5823V

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Characterization of amorphous and crystalline tin-cobalt anodes.
Fan, Quan and Chupas, Peter J and Whittingham, M Stanley
Electrochemical and Solid-State Letters, 10(12), A274-A278 (2007)
Cobalt-silica magnetic nanoparticles with functional surfaces.
Vadala ML, et al.
Journal of magnetism and magnetic materials, 293(1), 162-170 (2005)
Preparation and properties of Cobalt-based soft magnetic material prepared by novel powder metallurgy.
Srivastava, Yogesh and Srivastava, Sanjay
Journal of magnetism and magnetic materials, 423(1), 267-274 (2017)
Hydrothermal synthesis of 1-butanol from ethanol catalyzed with commercial cobalt powder
Zhang X, et al.
ACS sustainable chemistry & engineering, 1(12), 1493-1497 (2013)
Electrode properties of Mg2Ni alloy ball-milled with cobalt powder.
Chen, J and Bradhurst, DH and Dou, SX and Liu, HK
Electrochimica Acta, 44(2-3), 353-355 (1998)
View All Related Papers

Questions

1–2 of 2 Questions  

  1. Would this product ignite under air?

    1 answer

    1. The safety data sheet classifies this cobalt powder as combustible and advises that it is air-sensitive. It should be handled and stored under inert gas.

      Helpful?

  2. 안녕하세요. 이 제품의 SEM Image 확인할수있을까요

    1 answer

    1. A SEM image is not available for this product as this technique is not performed during batch release. Please refer to the specification sheet below for the quality tests performed on this item.

      https://www.sigmaaldrich.com/specification-sheets/184/361/266639-BULK_______ALDRICH__.pdf

      Helpful?

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