Suchergebnisse
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Vor 11 Stunden · Introduction Nestled in the heart of the Scottish Borders, the ruined monastery of Melrose Abbey is a captivating window into Scotland‘s medieval past. Founded in 1136 by King David I, Melrose was the first Cistercian abbey established in Scotland and became one of the nation‘s most important religious, economic, and cultural centers throughout the Middle Ages.
Vor 11 Stunden · Properties and chemistry DDT is similar in structure to the insecticide methoxychlor and the acaricide dicofol. It is highly hydrophobic and nearly insoluble in water but has good solubility in most organic solvents, fats and oils. DDT does not occur naturally and is synthesised by consecutive Friedel–Crafts reactions between chloral (CCl 3 CHO) and two equivalents of chlorobenzene (C 6 H 5 ...
