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
306568
Potassium hydroxide
semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)
Synonym(s):
Caustic potash
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Available to ship TODAYfromMILWAUKEE | $155.00 |
500 g | Available to ship TODAYfromMILWAUKEE | $514.00 |
About This Item
$155.00
Available to ship TODAYDetails
grade
semiconductor grade
Quality Segment
vapor pressure
1 mmHg ( 719 °C)
assay
99.99% trace metals basis (Purity excludes sodium content.)
form
pellets
composition
KOH, >85.0%
impurities
15% water
pH
~13.5 (25 °C, 5.6 g/L)
mp
361 °C (lit.)
solubility
water: soluble
cation traces
Na: ≤500.0 ppm
SMILES string
[OH-].[K+]
InChI
1S/K.H2O/h;1H2/q+1;/p-1
InChI key
KWYUFKZDYYNOTN-UHFFFAOYSA-M
General description
Application
- As a base in the synthesis of imines, starting from amines and alcohols.
- As a base in β-alkylation of secondary alcohols with primary alcohols without any transition metal catalyst.
- In combination with aluminium for pinacolization of aromatic aldehydes and reduction of hindered ketones.
- As a precipitating agent in the synthesis of MnZn ferrites nanoparticles (Mn0.8Zn0.2Fe2O4 ferrite nanoparticles) by modified hydrothermal method.
1 of 1
This Item | |||
|---|---|---|---|
| form pellets | form crystals or chunks, powder and chunks, powder or crystals | form pellets | form powder |
| solubility water: soluble | solubility H2O: soluble 1120 g/L | solubility - | solubility - |
| assay 99.99% trace metals basis (Purity excludes sodium content.) | assay ≥99.95% trace metals basis | assay 85-100.5% | assay ≥85% |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| grade semiconductor grade | grade anhydrous | grade - | grade - |
| pH ~13.5 (25 °C, 5.6 g/L) | pH - | pH ~13.5 (25 °C, 5.6 g/L) | pH ~13.5 (25 °C, 5.6 g/L) |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 1
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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