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
1.05033
Potassium hydroxide
pellets for analysis EMSURE®
Synonim(y):
Potash caustic, Caustic potash
Wybierz wielkość
| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 500 g | Przewidywany termin wysyłki03 czerwca 2026zKuehne + Nagel Sp. z o.o. | 162,00 zł | |
| 1 kg | Przewidywana wysyłka DZISIAJzKuehne + Nagel Sp. z o.o. | 249,00 zł | |
| 5 kg | Przewidywany termin wysyłki08 lutego 2027zKuehne + Nagel Sp. z o.o. | 904,00 zł | |
| 25 kg | Przewidywany termin wysyłki08 lutego 2027zKuehne + Nagel Sp. z o.o. | 2250,00 zł | |
| 50 kg | Przewidywany termin wysyłki08 lutego 2027zKuehne + Nagel Sp. z o.o. | 4500,00 zł |
Informacje o tej pozycji
162,00 zł
Przewidywany termin wysyłki03 czerwca 2026Szczegóły
Quality Level
grade
reagent grade
agency
suitable for SM 5210
vapor pressure
1 mmHg ( 719 °C)
product line
EMSURE®
assay
≥85.0% KOH basis (acidimetric)
form
solid
potency
333 mg/kg LD50, oral (Rat)
pH
14 (20 °C, 56 g/L in H2O)
mp
361 °C (lit.)
solubility
1130 g/L
anion traces
carbonate (K2CO3): ≤1.0%, chloride (Cl-): ≤0.005%, phosphate (PO43-): ≤0.0005%, silicate (as SiO2): ≤0.005%, sulfate (SO42-): ≤0.0005%
cation traces
Al: ≤0.001%, Ca: ≤0.001%, Cu: ≤0.0002%, Fe: ≤0.0005%, N: ≤0.0005%, Na: ≤0.5%, Ni: ≤0.0005%, Pb: ≤0.0005%, Zn: ≤0.0025%, heavy metals (as Pb): ≤0.0005%
storage temp.
2-30°C
SMILES string
[OH-].[K+]
InChI
1S/K.H2O/h;1H2/q+1;/p-1
InChI key
KWYUFKZDYYNOTN-UHFFFAOYSA-M
Application
- To precipitate perchlorate ions after the addition of perchloric acid during the extraction of intracellular metabolites from yeast. It is also utilized to adjust the pH of the solution, ensuring optimal conditions for subsequent analysis.
- In corrosion testing of anodized aluminium alloys to evaluate mass loss and corrosion resistance of the anodic layer.
- To basify reaction mixtures, facilitating the derivatization needed for gas chromatography-mass spectrometry (GC-MS) analysis in the identification of metabolic precursors.
Analysis Note
Carbonate (as K₂CO₃): ≤ 1.0 %
Chloride (Cl): ≤ 0.005 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.001 %
Ca (Calcium): ≤ 0.001 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
Na (Sodium): ≤ 0.5 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 0.0025 %
Legal Information
1 of 1
Ta pozycja | |||
|---|---|---|---|
| form solid | form solid | form pellets | form pellets |
| solubility 1130 g/L | solubility water: complete | solubility water: soluble | solubility - |
| assay ≥85.0% KOH basis (acidimetric) | assay ≥84.0% KOH basis (acidimetric) | assay ≥85% | assay ≥85% |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level - |
| grade reagent grade | grade reagent grade | grade ACS reagent | grade ACS reagent |
| mp 361 °C (lit.) | mp 361 °C (lit.) | mp 361 °C (lit.) | mp 361 °C (lit.) |
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Klasa składowania
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certyfikaty analizy (CoA)
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Produkty
Compare PAH determination in olive oil: traditional GB 5009.265-2021 method vs. faster, simpler SPE with Supelclean™ EZ-POP NP; both meet criteria.
Powiązane treści
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| 1050331000 | 04022536059617 |
| 1050335000 | 04022536059631 |
| 1050330500 | 04022536059594 |
| 1050339025 | 04022536531878 |
| 1050339050 | 04022536059655 |
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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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