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237205

Sigma-Aldrich

Potassium bicarbonate

ACS reagent, 99.7%, powder, crystals or granules

Synonyme(s) :

Potassium hydrogen carbonate

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About This Item

Formule linéaire :
KHCO3
Numéro CAS:
Poids moléculaire :
100.12
Beilstein:
4535309
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NB.24
Essai:
99.7%
99.7-100.5% (ACS specification)
Qualité:
ACS reagent
Forme:
powder, crystals or granules
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Qualité

ACS reagent

Niveau de qualité

Essai

99.7%
99.7-100.5% (ACS specification)

Forme

powder, crystals or granules

Impuretés

≤0.003% S compounds
≤0.01% insolubles

pH

8.2 (10.01 g/L)

Traces d'anions

chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤5 ppm

Traces de cations

Ca: ≤0.002%
Fe: ≤5 ppm
Mg: ≤0.001%
NH4+: ≤5 ppm
Na: ≤0.03%
heavy metals (as Pb): ≤5 ppm

Chaîne SMILES 

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

InChI

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

Clé InChI

TYJJADVDDVDEDZ-UHFFFAOYSA-M

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Description générale

Potassium bicarbonate is a commercially available nontoxic base frequently used as a reagent as well as a pH regulator in research and industrial applications.

Application

Potassium bicarbonate can be used as:      
  • A catalyst to synthesize dimethyl carbonate and propylene glycol from propylene oxide, supercritical carbon dioxide, and methanol. In this process, KHCO3 also acts as a drying agent.      
  • A dopant in the epoxidation of propene in the presence of silica-supported vanadium oxide as a catalyst.      
  • A carboxyl source to synthesize Z-5-alkylidene-2-oxazolidinones via Ag2CO3 catalyzed carboxylative cyclization of propargylic amines.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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P C ZAMECNIK et al.
The Journal of biological chemistry, 209(1), 337-354 (1954-07-01)
Masaru Watanabe et al.
Carbohydrate research, 341(18), 2891-2900 (2006-11-01)
Liquefaction of glucose into oil was examined in hot-compressed water at 300 degrees C and 30 or 60 min in a tumbling batch reactor. The effects of alkali (KHCO(3)), a hydrogenating agent (HCO(2)H), and a cobalt catalyst (Co(3)O(4)) were studied.
Bess Dawson-Hughes et al.
The Journal of clinical endocrinology and metabolism, 94(1), 96-102 (2008-10-23)
Bicarbonate has been implicated in bone health in older subjects on acid-producing diets in short-term studies. The objective of this study was to determine the effects of potassium bicarbonate and its components on changes in bone resorption and calcium excretion
Feng J He et al.
Hypertension (Dallas, Tex. : 1979), 55(3), 681-688 (2010-01-20)
To determine the effects of potassium supplementation on endothelial function, cardiovascular risk factors, and bone turnover and to compare potassium chloride with potassium bicarbonate, we carried out a 12-week randomized, double-blind, placebo-controlled crossover trial in 42 individuals with untreated mildly

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 réponse
    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 réponse
    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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