DRYING TUBES

Drying Tubes

Moisture control is essential in many analytical processes and sample preservation methods. Desiccator tubes, also known as drying tubes, help keep moisture-sensitive substances dry during storage, transportation, or specific laboratory procedures.

At Pobel, we offer a professional selection of laboratory tubes made from resistant materials and compatible with common desiccants. Designed to ensure a dry and stable atmosphere, they are ideal for applications requiring anhydrous conditions or protection from ambient humidity.

What Are Drying Tubes and What Are They Used For?

Drying tubes are sealable containers that hold desiccants (such as silica gel, calcium chloride, or molecular sieves) alongside the substance to be protected from moisture. Their design may include separate chambers, screw caps, or connections to other devices via ground glass joints.

These tubes are used in environments where even small amounts of water can affect the stability, reactivity, or measurement of a substance.

Common Applications:

• Preservation of hygroscopic samples

• Protection of water-sensitive reagents

• Slow, controlled drying of solids

• Transport of anhydrous compounds

• Pre-conditioning for precise analytical weighing

Types of Drying Tubes Available at Pobel

At Pobel, we offer various configurations to suit your specific needs:

Glass Drying Tubes with Ground Joint

• Made of high-quality borosilicate glass

• Available with straight or conical ends for connection to other devices

• Suitable for inert atmospheres or vacuum-line operations

Screw Cap Tubes

• Made of durable plastic (polyethylene or polypropylene)

• Airtight caps to prevent moisture ingress

• Models with internal compartments for desiccants

Gas Drying Tubes

• Designed to dry gases before use in sensitive reactions

• Equipped with fittings for glass tubing or hoses

• Compatible with reusable desiccants

Key Features of Our Drying Tubes

• High Airtightness: Secure seals to prevent ambient humidity from entering

• Durable Materials: Resistant to chemical agents and lab conditions

• Desiccant Compatibility: Designed for use with the most common drying agents

• Clear Visibility: Transparent models allow easy monitoring of desiccant condition

Advantages of Buying Drying Tubes from Pobel

✔️ High-quality, durable materials
✔️ Compatible with professional laboratory practices
✔️ Personalized technical advice for each application

At Pobel, we understand that in chemical, pharmaceutical, or analytical applications, moisture control isn’t optional—it’s a critical requirement. That’s why we offer targeted solutions to protect your samples, preserve reagent stability, and ensure precision in your processes.

Usage and Maintenance Tips

• Use clean, dry gloves when handling tubes to prevent contamination

• Replace the desiccant according to manufacturer instructions or when saturated

• Store tubes sealed in a dry, temperature-controlled environment

• Avoid direct heat sources that may deform plastic parts or affect contents

Guidance and Complementary Products

If you need help selecting the right tube for gas drying, solid protection, or maintaining specific anhydrous conditions, our technical team is ready to assist. Contact us for personalized advice and a no-obligation quote.

Frequently Asked Questions

What is a drying tube used for?
A drying tube is a device that dries or purifies gas in chemical experiments. Typically, it has connection ports at both ends for tubing, and the middle section is filled with a solid desiccant or impurity-removing agent.

How many types of drying methods are there?
The most common are sun drying, hot air drying, contact drying, infrared drying, freeze drying, fluid bed drying, and dielectric drying.