Potassium phthalimide

Potassium phthalimide is a chemical compound of formula C8H4KNO2. It is the potassium salt of phthalimide, and usually presents as fluffy, very pale yellow crystals. It can be prepared by adding a hot solution of phthalimide in ethanol to a solution of potassium hydroxide in ethanol; the desired product precipitates.[1]

Potassium phthalimide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.012.770
UNII
Properties
C8H4KNO2
Molar mass 185.221 g/mol
Appearance Light yellow solid
Melting point > 300 °C (572 °F; 573 K)
Soluble in water
Hazards
NFPA 704 (fire diamond)
Flammability code 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
2
0
Related compounds
Related compounds
Phthalimide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

This compound is a commercially available reagent used in the Gabriel synthesis of amines.

References

  1. P. L. Salzberg and J. V. Supniewski (1941). "β-Bromoethylphthalimide". Organic Syntheses.; Collective Volume, 1, p. 119
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