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
237205
Potassium bicarbonate
ACS reagent, 99.7%, powder, crystals or granules
Synonym(s):
Potassium hydrogen carbonate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 100 g | Available to ship TODAYfromMILWAUKEE | $38.50 | |
| 500 g | Available to ship TODAYfromMILWAUKEE | $89.80 | |
| 2.5 kg | Available to ship TODAYfromMILWAUKEE | $308.00 |
About This Item
$38.50
Available to ship TODAYDetails
grade
ACS reagent
Quality Level
assay
99.7%, 99.7-100.5% (ACS specification)
form
powder, crystals or granules
impurities
≤0.003% S compounds, ≤0.01% insolubles
pH
8.2 (10.01 g/L)
anion traces
chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤5 ppm
cation traces
Ca: ≤0.002%, Fe: ≤5 ppm, Mg: ≤0.001%, NH4+: ≤5 ppm, Na: ≤0.03%, heavy metals (as Pb): ≤5 ppm
SMILES string
[K+].OC([O-])=O
InChI
1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
InChI key
TYJJADVDDVDEDZ-UHFFFAOYSA-M
General description
Application
- 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.
1 of 1
This Item | |||
|---|---|---|---|
| form powder, crystals or granules | form solid | form powder or crystals | form - |
| assay 99.7%, 99.7-100.5% (ACS specification) | assay ≥99.95% trace metals basis, 99.7-100.5% dry basis | assay 99.5-101.0% (acidimetric) | assay - |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level - |
| grade ACS reagent | grade - | grade - | grade pharmaceutical primary standard |
| pH 8.2 (10.01 g/L) | pH - | pH 8.0-8.6 (20 °C, 5%) | pH - |
| anion traces chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤5 ppm | anion traces chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤5 ppm | anion traces carbonate (K2CO3): ≤2.5%, chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg | anion traces - |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 237205-500G | 04061838786104 |
| 237205-100G | 04061838786081 |
| 237205-2.5KG | 04061838786098 |
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Hi, I would like to know if the product will be powder. Thank you
1 answer-
As noted in the PROPERTIES section, this material may be in the form of a powder, crystals, or granules. The physical form is lot-specific and reported in the product Certificate of Analysis. Please see the link below to review a lot-specific or sample Certificate:
https://www.sigmaaldrich.com/product/sigald/237205#product-documentationHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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