Desiccators

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Desiccators

Desiccators are essential laboratory glassware used for protecting moisture-sensitive samples from humidity and for drying materials under controlled conditions. At Bhanu Scientific Glass Co., our desiccators are manufactured from high-quality borosilicate glass, offering excellent chemical resistance, thermal stability, and optical clarity.

Our range includes both standard (ambient) desiccators and vacuum desiccators, making them suitable for routine laboratory storage as well as advanced drying applications under reduced pressure. Precision-ground glass flanges and carefully designed sealing surfaces ensure reliable moisture isolation and long service life.

How a Desiccator Works

1. Samples are placed on a perforated plate or platform inside the desiccator
2. A drying agent (desiccant) such as silica gel or calcium chloride is placed below
3. The ground glass lid is seated to create an airtight seal
4. In vacuum desiccators, air is evacuated through a PTFE spindle or stopcock
5. Moisture is absorbed by the desiccant, keeping samples dry and stable

This controlled environment protects samples from ambient humidity, oxidation, and contamination.

Key Features of Desiccators

• Manufactured from borosilicate glass for durability
• Available in standard and vacuum models
• Ground glass flange sealing for effective moisture isolation
• PTFE spindle or stopcock in vacuum desiccators
• Clear visibility for continuous sample monitoring
• Stable design suitable for routine laboratory handling

Technical Specifications (Typical)

• Material: Borosilicate glass (body & lid)
• Model types:
• Standard desiccator (ambient)
• Vacuum desiccator
• Size range (approx. inner diameter):
• 100 mm
• 150 mm
• 200 mm
• 250 mm
• 300 mm
• Seal design: Precision-ground glass flange
• Vacuum components: PTFE spindle or stopcock
• Vacuum rating: Suitable for typical laboratory vacuum levels (down to tens of mbar)
• Capacity: Varies with diameter and internal height
• Optional components: Spare lids, spindles, flanges, internal plates

Applications of Desiccators 

Desiccators are widely used for:

• Storage of moisture-sensitive chemicals
• Drying laboratory samples after heating or filtration
• Cooling hot samples in a moisture-free environment
• Protecting hygroscopic materials
• Conditioning samples before weighing or analysis

Industries & Laboratories Served

• Chemical & pharmaceutical laboratories
• Research & development centers
• Academic and teaching institutions
• Analytical & quality control labs
• Biotechnology & materials science labs

Benefits of Using Our Desiccators

• Prevents moisture absorption and sample degradation
• Enables controlled drying without contamination
• Long-lasting glass construction with minimal maintenance
• Easy visual inspection without opening
• Compatible with common laboratory desiccants

Safety & Operating Advantages

• Uniform wall thickness reduces stress concentration
• Vacuum models designed for safe laboratory vacuum use
• Smooth ground surfaces improve sealing efficiency
• Clear glass improves handling safety and observation
• Not intended for high pressure or rapid pressure changes

Why Choose Our Desiccators?

• Precision-crafted scientific glassware
• Reliable sealing and consistent performance
• Multiple standard sizes readily available
• Custom options for specific laboratory needs
• Trusted manufacturing by Bhanu Scientific Glass Co.

Customization Options Available

• Custom diameters or heights
• Special flange or joint configurations
• Reinforced glass thickness
• Alternative vacuum connections
• Matching internal plates or supports

Frequently Asked Questions (FAQ)

Q1. What is the difference between standard and vacuum desiccators?
Standard desiccators rely on desiccants only, while vacuum desiccators use reduced pressure to accelerate drying.

Q2. Can desiccators handle deep vacuum?
They are designed for typical laboratory vacuum levels, not high-vacuum or pressure applications.

Q3. What desiccants can be used?
Common desiccants include silica gel, calcium chloride, and molecular sieves.

Q4. Are replacement parts available?
Yes, lids, PTFE spindles, and sealing components can be supplied.

Q5. Can sizes be customized?
Yes, custom dimensions can be manufactured on request.

Order Your Desiccators

Choose Bhanu Scientific Glass Co. for reliable, laboratory-grade desiccators designed for moisture control and sample protection.
Custom designs and configurations are available to suit your laboratory workflow.