potassium hydride

• ChemBase ID: 129066
• Molecular Formular: K+
• Molecular Mass: 39.0983
• Monoisotopic Mass: 38.96370668
• SMILES: [K+]
• Canonical SMILES: [K+]
• InChI: InChI=1S/K/q+1
• InChIKey: NPYPAHLBTDXSSS-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: potassium hydride
• IUPAC Traditional name: potassium hydride
• Synonyms: Potassium hydride; Potassium hydride; 氢化钾

Database IDs

• CAS Number: 7693-26-7
• EC Number: 231-704-8; 232-151-5
• MDL Number: MFCD00011357
• PubChem SID: 162223366
• PubChem CID: 82127
• Chemspider ID: 74121
• Wikipedia Title: Potassium_hydride

CALCULATED PROPERTIES

• H Acceptors: 0
• H Donor: 0
• Molar Refractivity: 0.0 cm^3
• Polarizability: 0.394384 Å^3
• Polar Surface Area: 0.0 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: false

PROPERTIES

Physical Property

• Apperance: colourless crystals
• Melting Point: Decomposes at ~400 °C
• Flash Point: 160°C(320°F)
• Density: 1.43 g/cm^3; 1.45

Safety Information

• Storage Warning: Moisture Sensitive
• European Hazard Symbols: Corrosive (C); Flammable (F)
• UN Number: UN1409
• Hazard Class: 4.3
• Packing Group: I
• Risk Statements: 14/15-34
• Safety Statements: 7/8-16-26-36/37/39-43-45
• TSCA Listed: 是
• GHS Pictograms: GHS02; GHS05
• GHS Hazard statements: H260-H314
• GHS Precautionary statements: P231+P232-P260-P303+P361+P353-P305+P351+P338-P405-P501A

Product Information

• Purity: 30% w/w in mineral oil

REFERENCES

• 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):