A detailed study has been made of the reaction between stannic chloride and acetylacetoie. In the re-fluxing benzene, the reaction in varying molar ratios yields a light brown crystalline solid, corresponding to SnCI2(AcAc)2 (I) which has been shown to be a simple monomeric, non-conducting compound. In cold, a product, corresponding in analysis to SnCl4.HAcAc, is obtained, to which the plausible formula [HAcAo)2 SnCl2]SnCl6 has been assigned. This has been confirmed by its observed conductance in nitrobenzene as well as by the isolation of an identical product by adding stannic chloride to [(HAcAc)2SnCl2]Cl2, obtained by passing hydrogen chloride in a solution of (I).