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/449/386/product-dating-information-mk.pdf
221783
Copper(II) chloride dihydrate
reagent grade
Synonym(s):
Cupric chloride dihydrate
About This Item
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grade
reagent grade
Quality Level
vapor density
>1 (vs air)
form
crystals
concentration
35.0-38.0% Cu (EDTA titration)
pH
3-3.8
mp
100 °C (dec.) (lit.)
SMILES string
Cl[Cu]Cl.[H]O[H].[H]O[H]
InChI
1S/2ClH.Cu.2H2O/h2*1H;;2*1H2/q;;+2;;/p-2
InChI key
MPTQRFCYZCXJFQ-UHFFFAOYSA-L
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This Item | C3279 | 1.02733 | 307483 |
|---|---|---|---|
| form crystals | form powder | form solid | form crystalline powder, crystals or granules |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 200 |
| grade reagent grade | grade - | grade ACS reagent | grade ACS reagent |
| pH 3-3.8 | pH - | pH 3.0-3.8 (20 °C, 50 g/L in H2O) | pH - |
| mp 100 °C (dec.) (lit.) | mp - | mp 598 °C | mp 100 °C (dec.) (lit.) |
| vapor density >1 (vs air) | vapor density - | vapor density - | vapor density >1 (vs air) |
Application
- As a recoverable promoter for the conversion of oximes to carbonyl compounds under mild reaction conditions.[1]
- To catalyze Biginelli condensation of aldehyde, β-ketoester and urea or thiourea to form dihydropyrimidinones under solvent-free and microwave irradiations.[2]
- Along with stannous chloride for the allylation of aldehydes.[3]
signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Irrit. 2
Storage Class
8A - Combustible corrosive hazardous materials
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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