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441902

Cesium carbonate

ReagentPlus®, 99%

Synonim(y):

Carbonic acid dicesium

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Rozmiar/SKUDostępnośćCena netto
5 g
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128,00 zł
50 g
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345,00 zł
100 g
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641,00 zł
250 g
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1120,00 zł
500 g
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2130,00 zł

Informacje o tej pozycji

Wzór liniowy:
Cs2CO3
Numer CAS:
Masa cząsteczkowa:
325.82
UNSPSC Code:
12352301
NACRES:
NA.22
PubChem Substance ID:
EC Number:
208-591-9
Beilstein/REAXYS Number:
4546405
MDL number:
Assay:
99%
Form:
powder and chunks

128,00 zł


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Quality Segment

product line

ReagentPlus®

assay

99%

form

powder and chunks

pH range

10-13 (68 °F, 50 g/L)

mp

610 °C (dec.) (lit.)

solubility

water: soluble

density

4.072 g/cm3 at 20 °C

SMILES string

[Cs+].[Cs+].[O-]C([O-])=O

InChI

1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

InChI key

FJDQFPXHSGXQBY-UHFFFAOYSA-L

General description

Cesium carbonate is a powerful inorganic base widely used in organic synthesis. It is a potential chemoselective catalyst for the reduction of aldehydes and ketones to alcohols. It is employed as base for the Heck coupling reaction of 4-trifluoromethyl-1-chlorobenzene and aryl chlorides.

Application

Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.
Cesium carbonate can be used as a base in C-C and C-N cross-coupling reactions such as Suzuki−Miyaura, Heck, and Buchwald-Hartwig amination reactions. It is also used as a base in alkylation reactions.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
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2095955485520960
description

ReagentPlus®, 99%

description

puriss. p.a., ≥99.0%

description

99.95% trace metals basis

description

purum p.a., ≥98.0% (T)

assay

99%

assay

≥99.0% (T)

assay

99.95% trace metals basis

assay

≥98.0% (T)

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

form

powder and chunks

form

-

form

powder

form

-

solubility

water: soluble

solubility

-

solubility

-

solubility

-

mp

610 °C (dec.) (lit.)

mp

610 °C (dec.) (lit.)

mp

610 °C (dec.) (lit.)

mp

610 °C (dec.) (lit.)

density

4.072 g/cm3 at 20 °C

density

-

density

-

density

-


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pictograms

Health hazardCorrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral

target_organs

Kidney,Adrenal gland,Testes

Klasa składowania

13 - Non Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves



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Questions

1–6 of 6 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

      Helpful?

  3. Product 441902, Cesium Carbonate, is very hygroscopic, how should it be handled in order to preserve the compound?

    1 answer
    1. When we package this product, it is packaged and sealed under a total nitrogen atmosphere to avoid any absorption of water from the atmosphere.  It would be optimal to do the same.  If you do not have a glove box or glove bag we do offer Aldrich Atmosbags that can used to help provide an inert atmosphere for compounds such as Cesium Carbonate. One could also flush the head space of the bottle before sealing it to help prevent the material from absorbing moisture during storage.

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  4. What is Product 441902, Cesium Carbonate, soluble in?

    1 answer
    1. According to the chemicals encyclopedia published by the Royal Society of Chemistry:13th Edition this product is extremely soluble in water and alcohol.  It is also soluble in ether.

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  5. What are the impurities present in Product 441902, Cesium Carbonate?

    1 answer
    1. We have performed any impurity profiling or testing on this product.  However, it has been noted that some of the trace metallic impurities could include, but are not limited to, the following: Lithium, Sodium, Potassium, Rubidium, Aluminum, Barium, Calcium, Chromium, Iron, Magnesium, Nickel, and Silicon.

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  6. What is the Department of Transportation shipping information for this product?

    1 answer
    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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