Product Description

Our desiccators with knobbed lids represent essential laboratory equipment for safe storage and preservation of moisture-sensitive materials and samples. These precision-engineered vessels feature ground glass flanges that create an airtight seal when the knobbed lid is placed on the body, maintaining a controlled, low-humidity internal environment.

Constructed from neutral borosilicate glass, these desiccators are chemically inert and resistant to thermal stress. The ground flange design ensures a perfect seal without requiring additional fasteners or complex closure mechanisms, making these desiccators quick and easy to open and close for sample access.

Each desiccator includes a porcelain perforated plate that supports the desiccant material (such as silica gel or calcium chloride) while allowing air circulation for efficient moisture absorption throughout the chamber. The plate design enables effective desiccation while preventing direct contact between samples and desiccant material.

Specifications

• Material: Neutral Borosilicate Glass
• Lid Design: Knobbed for convenient handling
• Sealing System: Ground flanges with airtight seal
• Internal Plate: Porcelain perforated plate included
• Diameter Range: 120 mm to 300 mm
• Chemical Inertness: Non-reactive glass prevents sample contamination
• Thermal Stability: Suitable for ambient laboratory conditions

Available Sizes (Diameter)

• 120 mm
• 160 mm
• 210 mm
• 240 mm
• 300 mm

Applications

• Storage of hygroscopic chemicals and reagents
• Preservation of moisture-sensitive laboratory materials
• Drying of samples and products
• Long-term storage of biological specimens
• Protection of electronic components in laboratories
• Storage of pharmaceutical compounds
• Preservation of precision instruments
• Educational laboratory demonstrations
• Quality control material storage
• Catalyst and pigment preservation

Key Features

• Ground Flange Design: Creates airtight seal without additional fasteners
• Knobbed Lid: Easy grip and convenient opening/closing
• Neutral Glass: Non-reactive with stored materials, preventing contamination
• Porcelain Perforated Plate: Included for efficient desiccant support and air circulation
• Chemical Durability: Borosilicate glass resists acids, bases, and laboratory atmospheres
• Thermal Shock Resistance: Tolerates temperature changes without cracking
• Wide Diameter Range: 120 mm to 300 mm accommodates various storage needs
• Transparent Design: Glass allows visual inspection of contents
• Reusable: Durable construction ensures repeated use over many years

Operating Guidelines

• Desiccant Selection: Use silica gel (indicating or non-indicating), calcium chloride, or other approved desiccants
• Desiccant Placement: Place desiccant on the porcelain perforated plate
• Sample Placement: Store samples above the desiccant on the provided plate
• Sealing: Ensure knobbed lid sits securely on ground flange for optimal seal
• Maintenance: Regenerate desiccant as needed to maintain effectiveness

Variants

Desiccators Plain with Knobbed Lid & Ground Flanges (Including Porcelain Perforated Plate)