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7693-26-7 - Potassium hydride, 30% w/w in mineral oil - L13266 - Alfa Aesar

L13266 Potassium hydride, 30% w/w in mineral oil

Número CAS
7693-26-7
Nombre Alternativo

Tamaño Precio ($) Cantidad Disponibilidad
25g 76,00
100g 252,00
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Potassium hydride, 30% w/w in mineral oil

MDL
MFCD00011357
EINECS
231-704-8

Propiedades químicas

Fórmula
KH
Peso molecular
40.11
Punto de inflamabilidad
160°(320°F)
Densidad
1.45
Sensibilidad
Moisture Sensitive
Solubilidad
Insoluble in benzene, diethyl ether and carbon disulfide.

Aplicaciones

Potassium hydride is a precursor in the production of various bases by deprotonation, highly-hindered bases potassium triethylmethoxide and potassium 3-aminopropylamide It serves as a powerful base in organic synthesis of deprotonate carbonyl compounds and amines to form enolates and amides respectively.

Notas

Moisture sensitive. Incompatible and reacts violently with water, acids, alcohols, oxidizing agents and chlorinated solvents.

Referencias documentales

Used catalytically to initiate deprotonation of a ketone with sodium hydride: Org. Synth. Coll ., 7, 351 (1990).

Has been used to generate various bases by deprotonation; e.g. the highly-hindered bases potassium triethylmethoxide: Synthesis, 427 (1974), and potassium 2,6-di-t-butylphenoxide (see 2,6-Di-tert-butyl­phenol, A17244). For generation of the strong base potassium 3-aminopropylamide (KAPA), see 1,3-Diaminopropane, A11932.

o-Alkynylanilines cyclize to indoles with KH in NMP; NaH is ineffective: Angew. Chem. Int. Ed., 39, 2488 (2000):

Szcz?śniak, D.; Szcz?śniak, R. Thermodynamics of the hydrogen dominant potassium hydride superconductor at high pressure. Solid State Commun. 2015, 212, 1-4.

Durojaiye, T.; Hayes, J.; Goudy, A. Potassium, rubidium and cesium hydrides as dehydrogenation catalysts for the lithium amide/magnesium hydride system. Int. J. Hydrogen Energy. 2015, 40 (5), 2266-2273.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H260-H304-H314

In contact with water releases flammable gases which may ignite spontaneously. May be fatal if swallowed and enters airways. Causes severe skin burns and eye damage.

Indicaciones de precaución: P231+P232-P260-P280-P301+P310-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P405-P501a

Handle under inert gas. Protect from moisture. Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Clase de peligro
4.3
Grupo de embalaje
I
Código de tarifa arancelaria unificado
2850.00
TSCA
Yes

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