Abstract:In 700 g entwiissertes Vorkondensat werdes 70 g Butanol eingearbeitet, und die Mischung 2 Stunden auf 65-70° erwtirmt. Das ausgegossene Reaktionsprodukt wird 20-24 Std. bei 75-80° gehtirtet; es liefert ein weiches kunstkderartiges Vliel). An SteIle von Butanol kennen auoh 70 g eines Vorlauffettsiuregemisohes mit einer Kohlenstoffkette von 6-9 Kohlenstoffatomen verwendet werden.
Diallyliden-pentaerythrit.448 g Aorolein, 136 g Pentaerythrit und 1,5 g Oxalsaure werden 19 h unter Ruhren am RiiokfluGI gekocht. Nach… Show more
“…Considerable interest has been shown in the development of instruments for high frequency titrations. Of the various instruments described (5, 21,23,92), the stable high frequency titrim-…”
“…Considerable interest has been shown in the development of instruments for high frequency titrations. Of the various instruments described (5, 21,23,92), the stable high frequency titrim-…”
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