Potassium hydride (KH)
Potassium hydride
CAS: 7693-26-7
Molecular Formula: HK
Potassium hydride (KH) - Names and Identifiers
| Name | Potassium hydride |
| Synonyms | KH PotassiuM hydrid Potassium hydride POTASSIUM HYDRIDE potassiumhydride(kh) Potassium hydride (KH) Potassiumhydrideinoilslurrygraypowder |
| CAS | 7693-26-7 |
| EINECS | 231-704-8 |
| InChI | InChI=1/K.H/q+1;-1 |
| InChIKey | NTTOTNSKUYCDAV-UHFFFAOYSA-N |
Potassium hydride (KH) - Physico-chemical Properties
| Molecular Formula | HK |
| Molar Mass | 40.11 |
| Density | 1.54 |
| Melting Point | decomposes [CRC10] |
| Boling Point | 316 °C |
| Flash Point | 113°C |
| Water Solubility | decomposed by H2O [CRC10] |
| Solubility | Insoluble in benzene, diethyl ether and carbon disulfide. |
| Appearance | dispersion (in mineral oil (~35%)) |
| Color | Grayish beige |
| Storage Condition | Flammables + water-Freezer (-20°C)e area |
| Sensitive | Moisture Sensitive |
| Physical and Chemical Properties | Potassium hydride is insoluble in carbon disulfide and ether. Thermal decomposition. Chemical Activity is stronger than sodium hydride. Burning in air. Hydrogen gas is released by intense reaction with water. Reaction with ammonia gas at high temperature. It reacts with halogen, acid, and the like. The metal may be free from the metal oxide. |
Potassium hydride (KH) - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14/15 - R34 - Causes burns |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) |
| UN IDs | UN 1409 4.3/PG 1 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 28500090 |
| Hazard Class | 4.3 |
| Packing Group | I |
Potassium hydride (KH) - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| preparation method | a dipyrazolyl borate-K[(C3N2H3)2BC8H14] was prepared. [(C3N2H3)2BC8H14]- (abbreviated as Pz2BBN) is a bidentate ligand for the preparation of hydrogen bond capture catalysts, which has potential applications. However, the reported preparation method of this ligand is not easy to realize industrial production. Therefore, it is of great significance to develop a method that is easy to realize industrial production for further expanding the application of this ligand. The key points of the technical scheme are as follows: under anhydrous and oxygen-free conditions, the 9-boron bicyclo [3.3.1] Nonane dimer, the reaction of Potassium hydride and pyrazole in a solvent of anhydrous toluene or anhydrous tetrahydrofuran under stirring and reflux yields dipyrazolyl borate-K[(C3N2H3)2BC8H14]. Using 9-boron bicyclo [3.3.1] Nonane dimer, pyrazole and Potassium hydride as raw materials, dipyrazolborate-K[(C3N2H3)2BC8H14] was synthesized by one-step method, H-plays the same role as OH-reported in the literature, but the product combined with H is H2 instead of H2O, so there is no need to remove water. In addition, the present invention also has the advantages of short reaction time, less kinds of required solvents, simple method, high product purity, low production cost and easy large-scale production. |
| Use | is used as a condensation agent and an alkane in organic synthesis. |
| auto-ignition temperature | Ignes sponneeous at room temperature in moist air |
Last Update：2024-04-10 22:29:15
