𝔖 Bobbio Scriptorium
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The stability of penicillin sodium held at various temperatures*

✍ Scribed by Randall, William A. ;Welcb, Henry ;Hunter, Albert C.

Publisher
Elsevier
Year
1945
Weight
397 KB
Volume
34
Category
Article
ISSN
0095-9553

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## Abstract Anionic ring‐opening polymerization of propylene oxide in the presence of a potassium alkoxide initiator was accelerated by the addition of the bulky phosphonium salts tetrakis[cyclohexyl(methyl)amino]phosphonium‐, tetrakis[propyl(methyl)amino]phosphonium‐, and tetrakis[octyl(methyl)ami