40 résultats : GIROUD-TROUILLET ALEXIA

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40 résultats

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Recrystallization

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, you will learn how to perform recrystallization. It is a method for purifying a solid crude product. Indeed, at the end of a chemical reaction you isolate a crude product containing ...

Mots clés : Recrystallization, Organic and molecular chemistry, Technical gestures, Organic Chemistry Lab

Recrystallization

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Drawing a liquid with the syringue

Description : In chemical synthesis, it is often necessary to work under anhydrous conditions under an inert atmosphere by taking either a freshly distilled solvent or a product which is flammable or simply sensitive to air. In both cases, it is necessary to know how to take the sample using a syringe or a cannula ...

Mots clés : Drawing, Syringue

Drawing a liquid with the syringue

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Preparation of a sample for a liquid NMR analysis

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, you will learn how to prepare a sample for NMR analysis. NMR, Nuclear Magnetic Resonance, is a spectroscopic technique used to determine the molecular structure of a product. This ...

Mots clés : Organic and molecular chemistry, Technical gestures, NMR analysis, Organic Chemistry Lab

Preparation of a sample for a liquid NMR analysis

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Filtration : a solid-liquid separation technique

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, two filtration techniques are presented to you which differ in their assembly: gravity filtration, and vacuum filtration. Filtration is a physical separation between a solid and ...

Mots clés : Organic and molecular chemistry, Filtration, Technical gestures, Organic Chemistry Lab, Solid-liquid

Filtration : a solid-liquid separation technique

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Use of a rotary evaporator

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video you will learn how to use a rotary evaporator. This is a device designed to evaporate or concentrate, by heating and under reduced pressure, a solvent in which your product is d ...

Mots clés : Organic and molecular chemistry, Technical gestures, Organic Chemistry Lab, Rotary evaporator

Use of a rotary evaporator

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Using a Dean-Stark apparatus

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, you will learn how to use a Dean Stark device, which allows you to remove water or other liquids from a reaction medium. Some chemical reactions are not complete because they are ...

Mots clés : Organic and molecular chemistry, Technical gestures, Organic Chemistry Lab, Dean-Stark apparatus

Using a Dean-Stark apparatus

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Separatory funnel: a liquid-liquid extraction technique

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, we are going to study a liquid liquid extraction separation technique performed using a separating funnel. This manipulation aims to extract a species solubilized in a given solvent ...

Mots clés : Organic and molecular chemistry, Separatory funnel, Technical gestures, Organic Chemistry Lab, Liquid-liquid

Separatory funnel: a liquid-liquid extraction technique

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Hydrodistillation

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video, you will learn how to perform hydrodistillation and distillation by steam distillation. These are old distillation techniques at atmospheric pressure using water vapour. These ...

Mots clés : Hydrodistillation, Organic and molecular chemistry, Technical gestures, Organic Chemistry Lab

Using a Schlenk line

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). In this video you will find a presentation of Schlenk's equipment. This is glassware equipment specially designed to work in specific conditions and in particular under a strict atmosphere of ...

Mots clés : Organic and molecular chemistry, Technical gestures, Organic Chemistry Lab, Schlenk line

Visualizing and interpreting a thin layer chromatography plate

Description : This video is part of a series of 19 videos for technical gestures in chemistry (with French subtitles). Without this video you will discover how to use a TLC plate during purification of a reaction crude to isolate your product from other impurities. We will also see the use of developers to allow ...

Mots clés : Plate, Organic Chemistry Lab, Technical gestures, Organic and molecular chemistry, TLC, Interpreting, Visualizing

Visualizing and interpreting a thin layer chromatography plate

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