Product features

Pear shape flask with standard ground mouth is a commonly used glass instrument in the laboratory. It is usually made of high borosilicate glass. Its shape is similar to a pear, with a thin neck, a body that gradually becomes larger from top to bottom, and a round bottom. This shape allows the liquid to be concentrated at the bottom of the flask when it is in use, which is convenient for heating and stirring. It also increases the heating area of the liquid, which is beneficial to improving the distillation efficiency and accelerating the evaporation of the solvent. The bottle mouth has a standard ground-mouth. It can be tightly connected with other glass instruments with the same standard ground mouth, such as condensers, fractionation columns, separatory funnels, etc., to ensure the sealing of the device, which is convenient for experimenters to assemble various experimental devices according to different experimental needs.

Pear shape flask is made of high borosilicate glass, which is thickened glass and is resistant to high temperatures. The bottle surface is smooth, bubble-free and durable. It has low expansion rate, high temperature resistance, acid and alkali resistance, high strength, high hardness, high light transmittance and high chemical stability. It has fine workmanship and rounded bottle body, high transparency and is beautiful in appearance. The frosted mouth has fine frosting and good sealing.

Product details

We can produce different flasks as per customer’s requirements.We can also print your logo on the flasks if the quantity is large,please feel free to contact us online.

Product specifications

Product applications

(1) Distillation operation: It is often used in distillation experiments, especially for distilling small amounts of liquid. The pear-shaped design allows for more complete evaporation and condensation of the liquid during the distillation process, reduces liquid residue, and improves the purity of the fraction.

(2) Rotary evaporation: It is a common accessory for rotary evaporators. During the rotary evaporation process, the liquid in the flask is heated while rotating, forming a thin film, which increases the evaporation area and accelerates the evaporation rate of the solvent.

(3) Organic synthesis reaction: As a reaction vessel, it is suitable for some organic synthesis reactions that require heating and stirring and have high requirements for the mixing of reactants. The smaller bottle mouth makes it easier to install instruments such as agitators and thermometers to accurately control the reaction conditions.