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
1.04936
Potassium chloride
for analysis EMSURE®
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
250 g | Estimated to ship onSeptember 28, 2026 | $59.70 |
500 g | Estimated to ship onSeptember 28, 2026 | $96.50 |
1 kg | Estimated to ship onSeptember 28, 2026 | $148.00 |
5 kg | Estimated to ship onOctober 12, 2026 | $519.00 |
50 kg | Estimated to ship onOctober 28, 2026 | $3,250.00 |
About This Item
Quality Segment
grade
reagent grade
product line
EMSURE®
assay
≥99.5% (silver nitrate titration)
form
solid
potency
2600 mg/kg LD50, oral (Rat)
impurities
≤0.01% In water insoluble matter
pH
5.5-8.0 (25 °C, 50 g/L in H2O)
bp
1413 °C/1013 hPa
mp
770 °C (lit.)
solubility
347 g/L
density
1.98 g/mL at 25 °C (lit.)
bulk density
1000 kg/m3
anion traces
bromide (Br-): ≤0.05%, iodide (I-): ≤0.002%, phosphate (PO43-): ≤0.0005%, sulfate (SO42-): ≤0.005%
cation traces
Ba: ≤0.001%, Ca: ≤0.001%, Fe: ≤0.0003%, Mg: ≤0.002%, N: ≤0.001%, Na: ≤0.02%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[Cl-].[K+]
InChI
1S/ClH.K/h1H;/q;+1/p-1
InChI key
WCUXLLCKKVVCTQ-UHFFFAOYSA-M
Application
Analysis Note
In water insoluble matter: ≤ 0.01 %
pH-value (5 %; water): 5.5 - 8.0
Bromide (Br): ≤ 0.05 %
Iodide (I): ≤ 0.002 %
Phosphate (PO₄): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.005 %
Total nitrogen (N): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0005 %
Ba (Barium): ≤ 0.001 %
Ca (Calcium): ≤ 0.001 %
Fe (Iron): ≤ 0.0003 %
Mg (Magnesium): ≤ 0.002 %
Na (Sodium): ≤ 0.02 %
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Storage Class
13 - Non Combustible Solids
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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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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