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
230375
Cobalt(II) nitrate hexahydrate
reagent grade, 98%
Synonym(s):
Cobaltous nitrate, Cobaltous nitrate hexahydrate, Nitric acid, cobalt(II) salt
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About This Item
powder, crystals or chunks
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grade
reagent grade
Quality Level
Assay
98%
form
flakes
powder, crystals or chunks
reaction suitability
reagent type: catalyst
core: cobalt
pH
4 (20 °C, 100 g/L)
mp
55 °C (lit.)
SMILES string
O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O
InChI
1S/Co.2NO3.6H2O/c;2*2-1(3)4;;;;;;/h;;;6*1H2/q+2;2*-1;;;;;;
InChI key
QGUAJWGNOXCYJF-UHFFFAOYSA-N
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This Item | 203106 | 935719 | 239267 |
|---|---|---|---|
| form flakes, powder, crystals or chunks | form crystals and lumps | form powder, crystals or granules (Chunks) | form chips, powder, crystals or chunks, solid |
| assay 98% | assay 99.999% trace metals basis | assay ≥99.9% trace metals basis | assay ≥98%, 98.0-102.0% |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| grade reagent grade | grade - | grade - | grade ACS reagent |
| mp 55 °C (lit.) | mp 55 °C (lit.) | mp 55 °C (lit.) | mp 55 °C (lit.) |
| pH 4 (20 °C, 100 g/L) | pH - | pH - | pH 4 (20 °C, 100 g/L) |
General description
Application
- In the synthesis of 5-carboxanilide-dihydropyrimidinone derivatives from acetoacetanilide, aldehyde, and urea/thiourea by condensation reaction.
- In the multi-component synthesis of 2-amino-3- cyanopyridine and pyranopyrazole derivatives.
- Cobalt (II) nitrate hexahydrate can also be used:,In the preparation of nano-Co3O4 by direct thermal decomposition, that are used in electrochemical water splitting and electrochemical sensors.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B Inhalation - Eye Dam. 1 - Muta. 2 - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Sens. 1 - STOT RE 2 Inhalation
Target Organs
Lungs
Storage Class Code
5.1B - Oxidizing hazardous materials
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
EU REACH SVHC Candidate List
EU REACH Annex XVII (Restriction List)
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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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