THOMSEN, JULIUS.

Thermochemiske Undersøgelser over Affinitetsforholdene imellem Syrer og Baser i vandig Opløsning. I-XII (in 7 parts, all)

Kjøbenhavn, Bianco Luno, 1869-73. 4to. Bound in one contemp. hcloth. Around 300 pp., plates. Some brownspots.

First edition of Thomsens main contributions in thermochemistry, undoubtly the most importent contribution from a Dane in chemistry in the 19th century. - The construction of a complete and quantitative system of thermochemistry required an extensive and accurate collection of thermochemical data over and above the observations upon which the principle was based. The amount of data which he amassed was so great that it enabled him the calculation of heats of reaction for practically speaking every fairly common inorganic reaction. The results, which are based between three and four thousand measurements, were later collected in his famous work "Thermochemische Untersuchungen" (The Danish original oferred here).

Order-nr.: 38916