Desiccator, Vacuum

The GISCOM Vacuum Desiccator is a high-strength, airtight chamber engineered for the safe drying, storage, and preservation of moisture-sensitive samples under controlled vacuum conditions. Made from premium Borosilicate Glass 3.3, it provides outstanding clarity, chemical resistance, and durability for demanding laboratory environments. Its robust vacuum-compatible design ensures reliable performance in research, quality control, pharmaceutical testing, and industrial workflows where accurate humidity reduction is essential.

 Key Features

• Vacuum-compatible design with precision-ground flange for superior sealing.
• Heavy-wall Borosilicate Glass 3.3 construction ensures strength, stability, and long service life.
• High-quality stopcock/valve system provides smooth and secure vacuum evacuation and release.
• Uniform glass thickness for safe operation under reduced pressure.
• Crystal-clear visibility for uninterrupted monitoring of samples and desiccant levels.
• A perforated drying plate is included for efficient placement of hygroscopic agents.
• Excellent resistance to most chemicals, including acids and solvents.
• Autoclavable design suitable for standard sterilisation cycles.
• Designed for safe, leak-free vacuum retention during extended storage periods.

Material Specifications

• Material: Borosilicate Glass 3.3
• Thermal Properties: Low thermal expansion coefficient (≈ 3.3 × 10⁻⁶ K⁻¹) Outstanding thermal shock resistance
• Chemical Properties: Inert to most laboratory reagents. Exceptional resistance to corrosion and chemical attack
• Mechanical Strength: Engineered for vacuum integrity. Thick-walled, stress-relieved glass
• Standards Compliance: Manufactured according to international laboratory glassware standards.

Technical Specifications

• Available Sizes: As per the standard size table
• Design: Vacuum lid with integrated stopcock, Precision-ground flange, and perforated internal desiccant plate
• Vacuum Performance: Suitable for low-to-medium vacuum levels used in standard laboratory applications
• Tolerances: Produced within acceptable laboratory glassware dimensional tolerances
• Accessories Included: Glass vacuum lid Stopcock/valve assembly, perforated desiccant plate

Handling & Precautions

• Inspect the desiccator, lid, and stopcock before each use to ensure structural integrity.
• Avoid sudden temperature changes; never place a hot item directly into the desiccator.
• Use appropriate vacuum grease when needed to maintain airtight sealing.
• Do not exceed recommended vacuum levels for Borosilicate Glass 3.3.
• Clean using mild detergents; avoid abrasive materials that may scratch glass surfaces.
• Ensure stopcock parts are clean, lubricated, and reassembled properly.
• Autoclaving is allowed within standard temperature limits for Borosilicate Glass 3.3.
• Avoid mechanical impacts or over-tightening of the stopcock.
• Always release the vacuum gradually to prevent sample disturbance and ensure user safety.

 Applications

• Pharmaceutical & QC/QA Laboratories: Drying of hygroscopic materials, stabilising sensitive reagents.
• Chemical Research & Analytical Labs: Controlled vacuum drying, storage of reactive substances, and gravimetric analysis.
• Biotechnology & Life Sciences: Preservation of biological and biochemical samples requiring moisture-free environments.
• Academic & Research Institutions: Ideal for teaching labs, sample preparation, and controlled environmental storage.
• Industrial Quality Testing: Moisture removal in powder samples, plastics, polymers, and speciality chemicals.

It plays a vital role in workflows requiring precise humidity reduction, stable vacuum conditions, and safe reagent preservation.