Pocket Thermometer Adapter for B14, B19 and B24 Flasks

A pocket thermometer adapter (often called a thermometer pocket or well) protects the thermometer from acidic solutions by acting as a physical barrier. Unlike a standard compression adapter that leaves the thermometer bulb exposed to the liquid or vapor, a pocket adapter is a sealed glass tube. This one is made for B14, B19 and B24 flask sizes.

How it works

1. Isolation: the thermometer is placed inside a thin-walled, closed-bottom glass tube that is built into a ground joint, so it never touches the acid.
2. Corrosion resistance: the pocket is made of 3.3 borosilicate glass, so it can sit in highly concentrated acids (like sulfuric or hydrochloric acid) that would otherwise destroy the metal sensors or markings on a thermometer.
3. Thermal transfer: to help the thermometer read accurately through the glass wall, a heat transfer medium (like a small amount of silicone oil or glycerin) is often added inside the pocket before the thermometer is inserted.

Steps to use

1. Select the joint size (B14, B19 or B24) that matches your flask.
2. Make sure the pocket is clean and dry. If the reaction is high-temperature, add a few drops of thermally conductive oil to the bottom of the pocket.
3. Insert the thermometer into the pocket.
4. Secure the adapter into the flask. The glass pocket now takes the "hit" from the acid, so the thermometer stays safe and clean.

The jointed design gives a tight fit between the adapter and the flask, which reduces the risk of leaks, contamination or heat loss during experiments. The adapter is used for monitoring liquids, distillations and heating applications.

Specifications

• Material: Clear 3.3 Borosilicate Glass
• Joint Size: Select from drop down
• Brand: OMSONS
• Product of India