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  2. Graduated cylinder - Wikipedia

    en.wikipedia.org/wiki/Graduated_cylinder

    Different types of graduated cylinder: 10mL, 25mL, 50mL and 100mL graduated cylinder. A graduated cylinder, also known as a measuring cylinder or mixing cylinder, is a common piece of laboratory equipment used to measure the volume of a liquid. It has a narrow cylindrical shape. Each marked line on the graduated cylinder represents the amount ...

  3. Beaker (laboratory equipment) - Wikipedia

    en.wikipedia.org/wiki/Beaker_(laboratory_equipment)

    For instance, a 250 mL beaker might be marked with lines to indicate 50, 100, 150, 200, and 250 mL of volume. These marks are not intended for obtaining a precise measurement of volume (a graduated cylinder or a volumetric flask would be a more appropriate instrument for such a task), but rather an estimation. Most beakers are accurate to ...

  4. Reagent bottle - Wikipedia

    en.wikipedia.org/wiki/Reagent_bottle

    Reagent bottles, also known as media bottles or graduated bottles, are containers made of glass, plastic, borosilicate or related substances, and topped by special caps or stoppers. They are intended to contain chemicals in liquid or powder form for laboratories and stored in cabinets or on shelves. Some reagent bottles are tinted amber ...

  5. Laboratory flask - Wikipedia

    en.wikipedia.org/wiki/Laboratory_flask

    Cassia flasks, for the analysis of essential oils and aldehyde determination, approx. 100 ml, neck graduated 0–6: 0.1 ml. Erlenmeyer flasks (introduced in 1861 by German chemist Emil Erlenmeyer (1825–1909)) are shaped like a cone, usually completed by the ground joint; the conical flasks are very popular because of their low price (they are ...

  6. Laboratory glassware - Wikipedia

    en.wikipedia.org/wiki/Laboratory_glassware

    Three beakers, an Erlenmeyer flask, a graduated cylinder and a volumetric flask. Laboratory glassware is a variety of equipment used in scientific work, traditionally made of glass. Glass may be blown, bent, cut, molded, or formed into many sizes and shapes. It is commonly used in chemistry, biology, and analytical laboratories.

  7. Volumetric flask - Wikipedia

    en.wikipedia.org/wiki/Volumetric_flask

    A 100 ml volumetric flask with stopper Volumetric flasks of various sizes. A volumetric flask ( measuring flask or graduated flask ) is a piece of laboratory apparatus , a type of laboratory flask , calibrated to contain a precise volume at a certain temperature.

  8. US Supreme Court declines to let RFK Jr drop off ballot in ...

    www.aol.com/news/us-supreme-court-declines-let...

    (Reuters) -The U.S. Supreme Court denied on Tuesday a bid by former independent presidential candidate Robert F. Kennedy Jr., who has endorsed Republican Donald Trump, to be removed from the ...

  9. Pyrex - Wikipedia

    en.wikipedia.org/wiki/Pyrex

    Older clear-glass Pyrex manufactured by Corning, Arc International's Pyrex products, and Pyrex laboratory glassware are made of borosilicate glass. According to the National Institute of Standards and Technology , borosilicate Pyrex is composed of (as percentage of weight): 4.0% boron , 54.0% oxygen , 2.8% sodium , 1.1% aluminum , 37.7% silicon ...

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