Physical properties of sym-trinitrobenzene

Temperature °C Solubility (%) in sulphuric acid of concentration in % H2S04  

The problem was finally solved by Meisenheimer [40] in 1902, who found that by the addition of CH3OK to trinitrobenzene an anisole derivative was formed  

According to Meisenheimer, this formula was confirmed by the fact that the product of the addition of potassium ethoxide to trinitroanisole is identical to the product of the addition of potassium methoxide to trinitrophenetole. Meisen-heimer s view was later confirmed by a number of workers, as for example Busch and Kogel [41], Bolian [42] and others (p. 203). 

The reaction proceeds differently when sym-trinitrobcnzcnc is heated with sodium ethoxide. One of the nitro groups is substituted by a methoxy or ethoxy group, 3,5-dinitroanisole or 3,5-dinitrophenetole being formed  

Similarly, when trinitrobenzene is boiled with an aqueous solution of NaOH, sodium 3,5-dinitrophenate is formed along with some tetranitroazoxybenzene (de Bruyn [16])  

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Some new data have been published (Ij on the physical properties of sym-trinitrobenzene such as vapour pressure between 122 C (m.p.) and 270 C. 

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