Pharmaceutische Rundschau, volume 13

Cover Pharmaceutische Rundschau, volume 13
Pharmaceutische Rundschau, volume 13
Frederick Hoffmann
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30 Gm. of oil required for sapo- nification 3.8644 Gm. potassium hydroxide, corres- ponding to 13,66704 Gm. or 48.86 per ceni of bor- nylacetote.
From the alkaline mixture the oil was distilled with water Tapor. The first portion of the distil- late was liauid, then bomeol crystallized upon cooling. The liquid oily distillate was resoWed into the following fractions upon distillation: -166° 166 — 170° 170 — 176° 176 — 220° and OTcr. The last fractions contained consider- able bomeol, which crys
...tallized.
The bomeol which had been obtained directly from the distillation of the saponified oil wiÜi water Tapor was dried on porous plate and recrystallized from benzin. Large hexagonal plates were ob- tained which melted at 204*^ 0. They haTe been Digitized by Google 136 Phabmaoeütisohe Bundsohaü.
examined crystallographically by Professor W m.
H o b b 8 , wbo declared tbem to possess tbe gen- eral crystallographic characteristics of borneol.
Prof. H o b b b' report will be found in Am.


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