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Teaching materialJeulin specializes in teaching materials for education (Physics, Chemistry, Life and Earth Sciences) and Technology in primary, secondary and higher education.
Laboratory equipment
Teachers, companies or individuals, choosing Le Laborantin is to trust the specialist in laboratory equipment, structured around a team of professionals in the sector.
Measuring equipmentFrench specialist in test and measurement instruments. We select our products from the biggest brands in the sector to offer you and guarantee the best of measurement.
Optical material
Specialized in the design, manufacture and supply of optical teaching materials for Higher Education, Ovio Instruments has been pursuing its primary vocation since 2007.
The separatory funnel is a laboratory glassware used to separate two immiscible liquids through decantation. It has a distinctive shape, resembling a funnel topped with a hemisphere and ending in a neck sealed with a stopper. A narrow tube extends from the funnel and is equipped with a stopcock at its lower end. During decantation, the denser liquid (lower phase) settles beneath the less dense liquid (upper phase).
Here are some common uses of a separatory funnel: liquid separation, component extraction, purification, or simply observing phase separation in a mixture.
A separatory funnel, often made of borosilicate glass, is used in three main steps:
> Adding the liquid into the funnel
> Allowing the liquids to separate
> Collecting the lower phase using the stopcock
The dropping funnel is used to add a liquid reagent to a reaction mixture in a controlled manner. It enables dropwise addition of a reagent into a flask, ensuring a precise flow rate to prevent overly rapid or hazardous reactions.
There are two types of dropping funnels:
> Non-isobaric dropping funnel: Ideal for gradually introducing a reagent into a flask for a moderate reaction.
> Isobaric dropping funnel: Used when the reagent is highly volatile, toxic, or moisture-sensitive. It maintains pressure equilibrium between the funnel and the flask, ensuring controlled reagent flow.
Sku 713341
