99% Alumina Threaded Crucible with Screw Lid is a high-purity ceramic container designed for sealed high-temperature processing and controlled laboratory reactions. Made from 99% Al₂O₃, it provides excellent thermal stability, chemical resistance, and mechanical strength under extreme heating conditions.
Product Properties
Downloads & Resources
| Resource Type | Link |
|---|---|
| Safety Data Sheet (SDS) | 99% Alumina MSDS-Innovacera |
| Technical Data Sheet (TDS) | INNO-99% Alumina Ceramic Material Properties-SU0627 |
| Catalogue | 99% Alumina Crucible（EN） |
Product Details
99% Alumina Threaded Crucible with Screw Lid is a high-purity ceramic container designed for sealed high-temperature processing and controlled laboratory reactions. Made from 99% Al₂O₃, it provides excellent thermal stability, chemical resistance, and mechanical strength under extreme heating conditions.
The internal threaded structure allows the ceramic lid to be tightly screwed into the crucible body, forming a stable and integrated sealed chamber. This design helps minimize material loss, reduce contamination, and maintain a controlled environment during heating or reaction processes.
With a compact cylindrical structure and precise machining, this crucible is suitable for small-volume high-temperature experiments requiring sealing performance and purity control.
Key Features
- 99% high-purity alumina ceramic (Al₂O₃)
- Internal threaded sealing structure with a matching screw lid
- Excellent high-temperature resistance and thermal stability
- Good chemical inertness and low contamination risk
- Compact cylindrical design for small sample processing
- Reusable under controlled thermal cycling conditions
Applications
- Sealed high-temperature chemical reactions
- Material synthesis and micro-scale experiments
- Volatile or sensitive sample processing
- Laboratory thermal testing under controlled atmosphere
- Research and development in materials science
Specification
Crucible Body
| Parameter | Value |
|---|---|
| Outer Diameter | 25.35 mm |
| Inner Diameter | 22 mm |
| Outer Height | 30 mm |
| Wall Thickness | 2.2 mm |
Crucible Lid
| Parameter | Value |
|---|---|
| Lid Diameter | 25.15 mm |
| Lid Thickness | 8.15 mm |
- Material: 99% Alumina (Al₂O₃)
- Structure: Threaded crucible with screw lid
- Capacity: approx. 10–11 mL
- Type: Sealed ceramic crucible
Custom Service
Custom sizes, thread structures, and sealing designs are available according to customer requirements.
Shipping & Customs
Your order may require payment of import duties or other customs clearance fees. Please check the notifications from the logistics company or relevant parties and complete the payment in time to prevent the shipment from being returned.
Frequently Asked Questions
A threaded alumina crucible allows the lid to be screwed tightly into the body, forming a sealed structure that helps reduce material loss and contamination during high-temperature processing.
The threaded design provides a tight mechanical fit, but it is not a fully gas-tight sealing system under high pressure. It is mainly used for semi-sealed or controlled laboratory conditions.
Yes, it is suitable for handling small amounts of volatile or reactive materials in laboratory environments where partial containment is required.
Under normal use conditions and proper heating rates, the ceramic threads are designed to remain functional, but excessive temperature cycling or contamination may affect smooth opening.
A threaded structure provides more stable mechanical locking and better repeatability compared to press-fit lids, especially in repeated heating cycles.
Yes, it can be used in tube furnaces and muffle furnaces, but it is mainly designed for applications requiring partial sealing or sample protection.
The threaded structure may slightly increase wall complexity, but 99% alumina ensures stable thermal performance under high-temperature conditions.
It should be handled carefully during assembly and disassembly, avoiding excessive force or misalignment to prevent damage to the ceramic threads.
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