On the Calorimetric Bomb and on the Standard in the Thermochemistry of Organic Compounds. Diazo Compounds. Thermochemical Investigation

V. V. Svyatoslavsky. 1) On the calorimetric bomb and on the standard in the thermochemistry of organic compounds. 2) Diazo compounds. Thermochemical investigation.

[Doctoral dissertation] separate offprint from the “Vremennik” of the Society for the Promotion of Advances in the Experimental Sciences and Their Practical Applications named after Kh. S. Ledentsov. Appendix No. 7—1917. pp. 1–361. Price 2 rubles.

The present investigation by Svyatoslavsky is divided into two parts: the first—methodological, in which he describes an adiabatic calorimeter that, by continuously varying the temperature of the surrounding space in which the calorimeter with the combustion bomb is placed, makes it possible to eliminate errors due to cooling of the calorimeter. In this part Svyatoslavsky remains wholly on the ground of the old Berthelot methodology and does not make use of the quite remarkable procedures developed by Nernst and his school.

Further, in the first part Svyatoslavsky gives a detailed determination of the standard in the thermochemistry of organic compounds according to the data of Fischer and Jaeger and his own, using benzoic acid for this purpose.

The second part gives the methodology and the results of thermochemical investigations in the field of diazo compounds and contains general considerations on the structure of diazo compounds, based on the author’s thermochemical investigations.

N. Lazarev.