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
409316
Potassium chloride
99.999% trace metals basis
Synonym(s):
Potassium monochloride
About This Item
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Quality Level
Assay
99.999% trace metals basis
form
solid
reaction suitability
core: potassium
technique(s)
protein extraction: suitable
impurities
≤15.0 ppm Trace Metal Analysis
mp
770 °C (lit.)
solubility
water: soluble
density
1.98 g/mL at 25 °C (lit.)
SMILES string
[Cl-].[K+]
InChI
1S/ClH.K/h1H;/q;+1/p-1
InChI key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
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This Item | P5405 | P9333 | 12636 |
|---|---|---|---|
| form solid | form powder | form - | form powder or crystals |
| assay 99.999% trace metals basis | assay ≥99.0% | assay ≥99.0% | assay 99-100.5% (AT) |
| Quality Level 100 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mp 770 °C (lit.) | mp 770 °C (lit.) | mp 770 °C (lit.) | mp 770 °C (lit.) |
| impurities ≤15.0 ppm Trace Metal Analysis | impurities - | impurities ≤0.0005% Phosphorus (P), ≤0.1% Insoluble matter | impurities acidity or alkalinity, complies, organic volatile impurities, complies (GC), residual solvents, complies, ≤0.0001% Al, ≤0.0005% heavy metals (as Pb), ≤0.003% free acid (as HCl), ≤0.005% free alkali (as KOH), ≤0.02% Mg, alkaline earth metals (as Ca) |
| density 1.98 g/mL at 25 °C (lit.) | density 1.98 g/mL at 25 °C (lit.) | density 1.98 g/mL at 25 °C (lit.) | density 1.98 g/mL at 25 °C (lit.) |
General description
Application
Features and Benefits
- We provide KCl with an exceptional trace metal purity of 99.999%, ensuring optimal pH stability and minimizing the risk of unwanted reactions.
- Low levels of trace metals (<15ppm) are crucial to avoid interference in sensitive biochemical assays.
- High purity minimizes corrosion and ensures efficient heat transfer, while low impurity levels (<15ppm) prevent unwanted reactions, and overall purity guarantees thermal stability under reactor conditions.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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How can I determine the shelf life / expiration / retest date of this product?
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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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