Product features

Pear shape flask with two necks and standard ground mouth is a laboratory glass instrument, usually made of high borosilicate glass, with an overall pear shape, a thin neck, This shape allows the liquid to be concentrated at the bottom of the flask when it is in use, making it easier to heat and stir. It also increases the heated area of the liquid, which is beneficial for improving distillation efficiency and accelerating solvent evaporation. The bottle mouth has a standard ground mouth interface with a variety of sizes and specifications. It can be tightly connected to other glass instruments with the same standard ground mouth to ensure the sealing of the device, making it convenient for experimenters to assemble various experimental devices according to different experimental needs.There are two ground ports, one is the main port, which is usually used to install instruments such as agitators, thermometers, condensers, etc. to accurately control the reaction conditions; the other port can be used to add reactants, introduce gases or install other auxiliary instruments, which is convenient for performing various operations during the experiment and improves the flexibility of the experiment.

Pear shape flask with two necks has low expansion rate, high temperature resistance, acid and alkali resistance, high strength, high hardness, high transmittance, and high chemical stability; fine workmanship, smooth surface, rounded bottle body; high transparency, beautiful appearance; fine frosting on the frosted mouth, 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) Organic synthesis reaction: As a reaction vessel, it is suitable for some organic synthesis reactions that require heating, stirring and high requirements for the mixing of reactants.

(2) Distillation and fractionation: It can be used for distillation and fractionation experiments, especially for distillation of small amounts of liquid. The pear-shaped design can make the evaporation and condensation of the liquid more complete during the distillation process, reduce liquid residue, and improve the purity of the fraction. The two-port design facilitates the connection of instruments such as the distillation head, fractionation column, and condenser, making the construction of the distillation device more convenient and flexible.

(3)Other applications: In some experiments that require gas absorption, liquid extraction, etc., the standard ground-mouth two-necked pear-shaped flask can also play a role. One port can be connected to a gas conduit for introducing gas for absorption reaction; the other port can be installed with a separatory funnel for liquid extraction operations.