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367877

Sigma-Aldrich

Potassium carbonate

99.995% trace metals basis

Synonyme(s) :

Dipotassium carbonate

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About This Item

Formule linéaire :
K2CO3
Numéro CAS:
Poids moléculaire :
138.21
Beilstein:
4267587
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NA.23
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Qualité

for analytical purposes

Essai

99.995% trace metals basis

Forme

powder and chunks

Impuretés

≤55.0 ppm Trace Metal Analysis

Pf

891 °C (lit.)

Solubilité

H2O: soluble 138 g/L at 20 °C (completely)

Chaîne SMILES 

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

InChI

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

Clé InChI

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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Description générale

Potassium carbonate (K2CO3) is a water-soluble inorganic compound that is primarily derived from potash. It is industrially prepared by reacting potassium hydroxide and carbon dioxide. The solution crystallizes to form potash hydrate, which can further be heated above 200°C to produce the anhydrous salt.[1][2]

Application

K2CO3 can be used for a variety of applications such as:
  • production of soaps and glasses[3][3]
  • drying agent for organic based compounds like ketones, alcohols, and amines[4]
  • buffering agent to produce wine[5]
  • ingredient in welding and other coatings[5]

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


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Certificats d'analyse (COA)

Lot/Batch Number

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Potassium compounds
Schultz H, et al.
Ullmann's Encyclopedia of Industrial Chemistry (2000)
A Convenient Stereoselective Reduction of gem-Dibromides with a Combination of Dimethyl Phosphite and Potassium Carbonate
Zhao Y, et al.
Phosph. Sulfur Relat. Elem. (2015)
Formic acid decomposition over palladium based catalysts doped by potassium carbonate
Jia L, et al.
Catalysis Today (2015)
A study of the vapour-liquid equilibrium of CO2 in mixed solutions of potassium carbonate and potassium glycinate
Lee A, et al.
International Journal of Greenhouse Gas Control, 36, 27-33 (2015)
Highly Selective and Sensitive Voltammetric Sensor Based on Ruthenium Nanoparticle Anchored Calix [4] amidocrown-5 Functionalized Reduced Graphene Oxide: Simultaneous Determination of Quercetin, Morin and Rutin in Grape Wine
Elcin S, et al.
Electroanalysis, 28(3), 611-619 (2016)

Questions

1–2 of 2 Questions  
  1. 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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  2. 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/449/386/product-dating-information-mk.pdf

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