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  2. Dropping funnel - Wikipedia

    en.wikipedia.org/wiki/Dropping_funnel

    A dropping funnel or addition funnel is a type of laboratory glassware used to transfer liquids. They are fitted with a stopcock which allows the flow to be controlled. Dropping funnels are useful for adding reagents slowly, i.e. drop-wise. This is desirable when the quick addition of the reagent results in side reactions, or if the reaction is ...

  3. Eye dropper - Wikipedia

    en.wikipedia.org/wiki/Eye_dropper

    An eye dropper, also called Pasteur pipette or simply dropper, is a device used to transfer small quantities of liquids. [1] They are used in the laboratory and also to dispense small amounts of liquid medicines. A very common use was to dispense eye drops into the eye.

  4. Laboratory funnel - Wikipedia

    en.wikipedia.org/wiki/Laboratory_funnel

    Laboratory funnels are funnels that have been made for use in the chemical laboratory. There are many different kinds of funnels that have been adapted for these specialized applications. There are many different kinds of funnels that have been adapted for these specialized applications.

  5. Group-contribution method - Wikipedia

    en.wikipedia.org/wiki/Group-contribution_method

    The simplest form of a group-contribution method is the determination of a component property by summing up the group contributions : [] = +.This simple form assumes that the property (normal boiling point in the example) is strictly linearly dependent on the number of groups, and additionally no interaction between groups and molecules are assumed.

  6. Microscale chemistry - Wikipedia

    en.wikipedia.org/wiki/Microscale_chemistry

    There are two main strands of the modern approach. One is based on the idea that many of the experiments associated with general chemistry (acids and bases, oxidation and reduction, electrochemistry, etc.) can be carried out in equipment much simpler (injection bottles, dropper bottles, syringes, wellplates, plastic pipettes) and therefore cheaper than the traditional glassware in a laboratory ...

  7. Thistle tube - Wikipedia

    en.wikipedia.org/wiki/Thistle_tube

    A thistle tube is a piece of laboratory glassware consisting of a shaft of tube, with a reservoir and funnel-like section at the top. Thistle tubes are typically used by chemists to add liquid to an existing system or apparatus. Thistle funnels are used to add small volumes of liquids to an exact position.

  8. Policeman (laboratory) - Wikipedia

    en.wikipedia.org/wiki/Policeman_(laboratory)

    The use of a plastics policeman for raking the precipitate on the beaker wall A policeman can be used for cleaning the inside of glassware, or for getting the last bit of precipitate out of a vessel. Especially in chemical laboratories it is often used to transfer residues of precipitate or solid on glass surfaces when performing the ...

  9. Portal:Chemistry/Lab equipment - Wikipedia

    en.wikipedia.org/wiki/Portal:Chemistry/Lab_equipment

    Aspirator - Beaker - Boiling tube - Büchner funnel - Bunsen burner - Burette - Calorimeter - Colorimeter - Conical measure - Nuclear Magnetic Resonance - Mass Spectrometer - Liquid Chromatography - Gas Chromatography - Crucible - Cuvette - Laboratory flasks (Büchner, Erlenmeyer, Florence, Retort, Round-bottom, Volumetric) - Fume hood - Gas syringe - Graduated cylinder - Perkin triangle ...