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Blister als Reaktionsplatte Blister as wellplate

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Uploaded by on Nov 19, 2008

Extrakt aus blauen Petunienblüten kommt in 5 Kammern einer vorher gereinigten Tablettendurchdrück-Verpackung (Blister). In den 5 Kammern darunter befinden sich Essig, Apfelstück, Natronlauge, Zitronensaft, Soda-Lösung. Zu diesen wird Petunien-Extrakt als Indikator gegeben. Rotfärbung zeigt Säure, Grünfärbung Lauge an.
Extract of blue Petunia petals is added to 5 wells of a Blister packing. In the 5 wells below are vinegar, a piece of apple, sodium hydroxide solution, lemon juice and sodium carbonate solution. Blue extract is added as indicator. Colour change to red indicates acids, to green Alkalis.

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