AU: W. Büchner AU: E. Weiss TI: Zur Kenntnis der sogenannten «Alkalicarbonyle» IV [1]. Über die Reaktion von geschmolzenem Kalium mit Kohlenmonoxid SO: Helvetica Chimica Acta VL: 47 NO: 6 PG: 1415-1423 YR: 1964 CP: Copyright © 1964 Verlag GmbH & Co. KGaA, Weinheim ON: 1522-2675 PN: 0018-019X AD: Cyanamid European Research Institute, Cologny/Genf DOI: 10.1002/hlca.19640470604 US: http://dx.doi.org/10.1002/hlca.19640470604 AB: The reaction between molten potassium and carbon monoxide (without solvent) has been studied. The reaction products obtained have been shown to be a mixture of potassium acetylenediolate, an organometallic compound, and the potassium salt of hexahydroxybenzene, the relative amounts of which vary with temperature. At reaction temperatures near the melting point of potassium (62,3°), potassium acetylenediolate and the organometallic compound are the major products, whereas at temperatures higher than 180° the potassium salt of hexahydroxybenzene predominates.