Experiments with rapeseed oil

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Presentation transcript:

Experiments with rapeseed oil experiments with rapsoil Experiments with rapeseed oil For the Comenius project We are what we eat 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Saponification 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Theory Chemicals and materials Method Index Theory Chemicals and materials Method 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Theory Soponification: Cleavage of the esterbonds in a fat molecule by potasium hydroxide or sodium hydroxide Soap 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil 200g rapeseed oil Chemicals 200g rapeseed oil 100ml distilled water 200ml 25% sodium hydroxide (NaOH) Sodium chloride 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil pot Materials pot hot plate with magnetic stirrer 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Method The rapeseed oil and the distilled water are heated in the pot. 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Method The solution is stirred and we add the sodium hydroxide. 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil The sodium chloride is added to our product. Method The sodium chloride is added to our product. 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Method Finally the soap is seperated from water and glycerol. The soap can be pressed into shape now. 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Transesterification 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Theory Chemicals and materials Method Index Theory Chemicals and materials Method 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Theory Transesterification:Concersion of a fatty acid glycerol ester molecule into three fatty acid methyl ester molecules Biodiesel 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil 100ml rapeseed oil Chemicals 100ml rapeseed oil 30ml methanol 5 sodium hydroxide pellets 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil condenser for boiling under backflow Materials hot plate with magnetic stirrer condenser for boiling under backflow 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

experiments with rapsoil Method The chemicals are placed in the round bottomed flask. Then we heat to the boil under backflow cooling. The final step is to separate the resulting biodiesel from glycerol and water 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

Thank you for listening! experiments with rapsoil Thank you for listening! 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany

Anja Bubenheimer Jascha Bandemehr Katharina Dietz CTA Singen, Germany experiments with rapsoil Anja Bubenheimer Jascha Bandemehr Katharina Dietz CTA Singen, Germany 30.07.2018 Hohentwiel-Gewerbeschule-Singen/CTA/Germany