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399973

Cobalt(II) acetate

99.99% trace metals basis

Synonym(s):

Cobalt diacetate, Cobaltous acetate, Cobaltous diacetate

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Size/SKUAvailabilityPrice
1 g

Available to ship TODAYfromMILWAUKEE

$45.70
10 g

Estimated to ship onOctober 28, 2026fromMILWAUKEE

$224.00

About This Item

Linear Formula:
(CH3CO2)2Co
CAS Number:
Molecular Weight:
177.02
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352103
EC Number:
200-755-8
MDL number:

$45.70


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Quality Segment

assay

99.99% trace metals basis

form

crystals and lumps, solid

reaction suitability

core: cobalt

impurities

≤5% water

mp

298 °C (dec.) (lit.)

SMILES string

CC([O-])=O.[Co+2]

InChI

1S/2C2H4O2.Co/c2*1-2(3)4;/h2*1H3,(H,3,4);/q;;+2/p-2

InChI key

QAHREYKOYSIQPH-UHFFFAOYSA-L

General description

Cobalt(II) acetate is a crystalline compound that tends to form complexes with other molecules due to the presence of the cobalt ion. It is widely used in catalysis, nanomaterial synthesis, and electroplating. It is also used as a drying agent for paints and varnishes and as a reagent to test for the presence of acetate ions in solutions.

Application

Cobalt(II) acetate can be used as:
  • A precursor to synthesize cobalt titanium oxide catalysts for the oxygen evolution reaction.
  • A starting material to prepare polymer stabilized Co nanocatalyst for growing carbon nanofibers.
  • A catalyst for direct amination of azoles under mild reaction conditions
  • A cobalt source in the synthesis of Lithium cobalt oxide (LiCoO2), which is a used as a cathode material in lithium-ion batteries.
  • A precursor to synthesize cobalt oxide nanoparticles via a simple direct thermal pyrolysis process. Co3O4 nanoparticles further used as a high-capacity anode materials in lithium-ion batteries.
  • An additive in the perovskite precursor solution to control the crystal growth and improve the performance of fully screen-printable hole-transport material (HTM)-free mesoporous perovskite solar cells (PSCs).

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This Item
517933229598203106
description

99.99% trace metals basis

description

≥99.99% trace metals basis

description

99.998% trace metals basis

description

99.999% trace metals basis

form

solid, crystals and lumps

form

-

form

crystals and lumps

form

crystals and lumps

assay

99.99% trace metals basis

assay

≥99.99% trace metals basis

assay

99.998% trace metals basis

assay

99.999% trace metals basis

mp

298 °C (dec.) (lit.)

mp

190-200 °C (dec.) (lit.)

mp

-

mp

55 °C (lit.)

impurities

≤5% water

impurities

-

impurities

≤25.0 ppm Trace Rare Earth Analysis

impurities

≤15.0 ppm Trace Metal Analysis

reaction suitability

core: cobalt

reaction suitability

core: iron

reaction suitability

core: cobalt

reaction suitability

core: cobalt

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100


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Danger

Hazard Classifications

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

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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