Aceton is een vluchtige en brandbare vloeistof. Alhoewel aceton licht irriterend is, tekst uit pdf verwijderen huidcontact minder erg dan bij vele andere oplosmiddelen. Eventueel op de huid aanwezige stoffen kunnen dan ook, opgelost in aceton, het lichaam binnendringen. Aceton wordt normaal gezien direct of indirect bereid uit propeen.
Het cumeen wordt op zijn beurt via radicalaire oxidatie omgezet tot het intermediair cumeenhydroperoxide. Een alternatieve methode voor de productie van aceton is het Wackerproces. Bij de verbranding van vetzuren door decarboxylatie ontstaan ketolichamen. Deze pagina is voor het laatst bewerkt op 20 mrt 2018 om 14:09. Gelijk delen, er kunnen aanvullende voorwaarden van toepassing zijn. Zie de gebruiksvoorwaarden voor meer informatie. This article needs additional citations for verification.
Macedonia, dinastia degli antigonidi, tetradracma di filippo III, 323-316 ac ca. Macedonia from after 11 June 323 BC until his death. As Arrhidaeus grew older it became apparent that he had mild learning difficulties. Alexander was fond of Arrhidaeus and took him on his campaigns, both to protect his life and to prevent his use as a pawn in any prospective challenge for the throne. He was in Babylon at the time of Alexander’s death on 10 June 323 BC.
Arrhidaeus was the most obvious candidate, but he was mentally unfit to rule. When news arrived in Macedonia that Arrhidaeus had been chosen as king, Cynane, a daughter of Philip II, developed a plan to travel to Asia and offer the new king her daughter Eurydice for wife. Struck under Perdikkas, circa 323-320 BC. Eurydice’s chance to increase her husband’s power came when the first war of the Diadochi sealed the fate of Perdiccas, making a new settlement necessary. An agreement was made at Triparadisus in Syria in 320 BC. The regent died of natural causes the following year, nominating as his successor not his son Cassander, but his friend and lieutenant, Polyperchon.
An opportunity presented itself in 317 BC when Cassander expelled Polyperchon from Macedonia. Eurydice immediately allied herself with Cassander and persuaded her husband to nominate him as the new regent. Cassander reciprocated by leaving her in full control of the country when he left to campaign in Greece. But individual circumstances and events at this time were subject to rapid change. That same year, Polyperchon and Olympias allied with her cousin, Aeacides, king of Epirus, and invaded Macedonia. The Macedonian troops refused to fight Olympias, the mother of Alexander.