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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
659878
Potassium tert-butoxide
sublimed grade, 99.99% trace metals basis
Synonym(s):
Potassium tert-butylate, Potassium t-butoxide
About This Item
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Product Name
Potassium tert-butoxide, sublimed grade, 99.99% trace metals basis
InChI
1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1
SMILES string
[K+].CC(C)(C)[O-]
InChI key
LPNYRYFBWFDTMA-UHFFFAOYSA-N
grade
sublimed grade
vapor pressure
1 mmHg ( 220 °C)
assay
99.99% trace metals basis
form
solid
reaction suitability
core: potassium
Quality Level
greener alternative product characteristics
Catalysis
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mp
256-258 °C (dec.) (lit.)
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This Item | 156671 | 328650 | 702757 |
|---|---|---|---|
| grade sublimed grade | grade reagent grade | grade - | grade - |
| assay 99.99% trace metals basis | assay ≥98% | assay - | assay - |
| form solid | form solid | form liquid | form liquid |
| mp 256-258 °C (dec.) (lit.) | mp 256-258 °C (dec.) (lit.) | mp - | mp - |
| vapor pressure 1 mmHg ( 220 °C) | vapor pressure 1 mmHg ( 220 °C) | vapor pressure - | vapor pressure - |
| reaction suitability core: potassium | reaction suitability - | reaction suitability core: potassium | reaction suitability - |
Application
- A precursor to fabricate potassium-containing thin films via the atomic layer deposition (ALD) method. [1]
- A catalyst for efficient functionalization of silsesquioxanes enabling the preparation of hybrid materials used in optics, electronics, and coating. A strong base in the synthesis of nitriles from aldehydes. [2]
- A promoter and base in cyclization and coupling reactions for enabling a wide range of bond-forming reactions via both ionic and radical mechanisms. [1]
- Mizoroki-Heck-Type reactions are mediated by potassium tert-butoxide. potassium tert-butoxide can commence the anionic polymerization of carbazolyl-substituted oxiranes. [3]
General description
Features and Benefits
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A
supp_hazards
Storage Class
4.2 - Pyrophoric and self-heating hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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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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