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
339164
Bis(cyclopentadienyl)cobalt(II)
Synonym(s):
Cobaltocene
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About This Item
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form
powder or crystals
solid
Quality Level
reaction suitability
core: cobalt
mp
176-180 °C (dec.) (lit.)
storage temp.
2-8°C
SMILES string
[Co].[CH]1[CH][CH][CH][CH]1.[CH]2[CH][CH][CH][CH]2
InChI
1S/2C5H5.Co/c2*1-2-4-5-3-1;/h2*1-5H;
InChI key
PXFGMRZPRDJDEK-UHFFFAOYSA-N
Related Categories
1 of 4
This Item | 339695 | N7524 | 481165 |
|---|---|---|---|
| form powder or crystals, solid | form powder or crystals, solid | form solid | form powder or crystals |
| storage temp. 2-8°C | storage temp. - | storage temp. - | storage temp. - |
| mp 176-180 °C (dec.) (lit.) | mp 197 °C (dec.) (lit.) | mp 171-173 °C (lit.) | mp 154-156 °C (lit.) |
| reaction suitability core: cobalt | reaction suitability core: cobalt | reaction suitability core: nickel, reagent type: catalyst | reaction suitability core: aluminum, reagent type: catalyst |
| Quality Level 100 | Quality Level - | Quality Level 100 | Quality Level 100 |
General description
Application
- As a dopant to prepare encapsulated carbon nanotubes with high thermoelectric conversion efficiency.[3]
- As a CVD precursor to fabricate cobalt oxide thin films for various applications.[1]
- As a redox-active anode species in Li-based redox flow batteries to achieve higher energy densities and energy efficiencies.[2]
- As a catalyst for controlled/“living” radical polymerization of methylmethacrylate.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Carc. 2 - Flam. Sol. 2 - Muta. 2 - Resp. Sens. 1 - Skin Sens. 1
Storage Class Code
4.1B - Flammable solid hazardous materials
WGK
WGK 3
Personal Protective Equipment
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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