High Alumina Crucible – Cylindrical Form

GISCOM  Cylindrical Form Crucibles are high-purity alumina containers designed for precise heating, melting, calcination, and sample preparation in laboratories and industrial settings. Their excellent thermal stability and chemical resistance make them essential for high-temperature analysis, materials testing, and chemical processing. These crucibles ensure consistent performance, accuracy, and safety across research, quality control, and manufacturing workflows.

Key Features

• High-Purity Alumina (99%+) for superior thermal shock resistance
• Cylindrical form supports uniform heating and efficient thermal distribution
• Unglazed interior enhances sample stability and analytical accuracy
• High temperature endurance up to 1700–1750 °C (application-dependent)
• Exceptional chemical inertness against acids, alkalis, and corrosive reagents
• High mechanical strength, preventing cracks during repeated thermal cycles
• Low porosity for reduced contamination and improved sample recovery
• Suitable for precision analytical and gravimetric work

Material Specifications

• Material: High-purity Alumina (Al₂O₃ – 99%+)
• Thermal Properties:
   Max. use temperature: 1700–1750 °C
   Excellent resistance to thermal shock
• Chemical Properties:
   Inert to most acids, alkalis, and molten metals
   Low reactivity for contamination-free analysis
• Mechanical Properties:
   High compressive strength
   Durable under repeated heating cycles
• Standards Compliance:
   Manufactured according to common international laboratory standards (ISO/DIN guidelines for ceramic labware)

Technical Specifications

• Available Sizes / Capacities:
  Multiple volume options suitable for analytical laboratories (custom sizes available on request).
• Design: Cylindrical form, unglazed, smooth interior
• Tolerance: Precision-manufactured for dimensional accuracy
• Accessories (optional):
  Matching alumina lids
   Crucible tongs
  High-temperature furnace supports

 Handling & Precautions

• Heat gradually to avoid thermal shock—never place a cold crucible directly into a hot furnace.
• Allow the crucible to cool in the air before handling; use crucible tongs for safety.
• Clean with non-abrasive materials to maintain surface integrity.
• Suitable for high-temperature furnaces but not recommended for direct flame heating.
• Avoid sudden temperature changes, impact, or drops.
• Store in clean, dry conditions to prevent contamination.

Applications

• Research & development centers
• University laboratories
• Pharmaceuticals (QA/QC), chemical & petrochemical industries
• Thermal analysis (TGA/DSC sample preparation)
• Ashing, calcination, fusion, and materials testing
• High-temperature metal, ceramic, and mineral analysis
  Their precise performance and chemical stability make them essential for routine and advanced laboratory workflows.