Glass Thermometer Adapter 14/20

A glass thermometer adapter 14/20 is a piece of laboratory glassware designed to allow the insertion of a thermometer into a reaction setup while maintaining a sealed system. Here’s a breakdown of what it is and how it works:

Description:

• Material: Made of borosilicate glass (like Pyrex), which is heat-resistant and chemically stable.

• Joint Size (14/20):

  • 14 refers to the outer diameter of the inner ground glass joint in millimeters.

  • 20 refers to the length of the ground glass joint in millimeters.

  • This size is common in small-scale laboratory setups, especially in organic chemistry.

• Design Features:

  • Typically includes a ground glass joint at the bottom to connect to other glassware like a distillation head or flask.

  • Has a rubber or Teflon thermometer fitting at the top that grips the thermometer and seals the joint.

  • The adapter is usually angled or straight, depending on the intended setup.

 Uses:

• Allows you to safely insert a liquid-in-glass thermometer into an apparatus (e.g., during distillation).

• Maintains an airtight or semi-airtight system to prevent vapor loss.

• Protects the thermometer and maintains correct positioning for accurate temperature readings.

Why Use It:

• Prevents contamination or vapor leaks.

• Makes your thermometer compatible with standard lab glassware.

• Essential for precision work in synthetic chemistry, distillations, and extractions.