High-Purity Alumina Thermal Analysis Crucibles
Price range: $1.00 through $3.00
These Alumina Thermal Analysis Crucibles are manufactured using high-purity Al2O3 (>99%) through a Slip Casting process, resulting in high density and smooth, even surfaces on both the interior and exterior. It is designed for long-term use at temperatures up to 1600°C.
1. High Reusability
The crucible can be reused multiple times without affecting experimental results. It is easily cleaned by water rinsing or 10% hydrochloric acid washing, followed by drying.
2. Excellent Thermal Conductivity
The high thermal conductivity ensures rapid heat transfer between the sample and the crucible, minimizing temperature differences and maintaining uniform heat distribution.
3. Stable Structural Performance
Made from high-purity powder and processed with precision-controlled high-temperature sintering, the crucible forms a dense, homogeneous microstructure. This prevents unwanted peaks in analysis and ensures no physical/chemical reactions with the sample.
Precautions for Using 99% Alumina Crucibles
Before the first use, the crucible should be placed in an oven at approximately 105°C for 120 minutes to remove moisture.
Do not use gasoline torches, acetylene torches, or alcohol lamps for direct heating to avoid cracking of the crucible due to uneven heating.
- The distance between the crucible and the heating element (such as carbon tubes, silicon carbide rods, heating wires, etc.) should be greater than 2 cm.
4. The rate of heating or cooling should not be too rapid. Below 1200°C, the rate should be less than 5°C per minute; above 1200°C, it should be less than 4°C per minute. For cooling, it is recommended to use controlled power cooling. Directly turning off the power at high temperatures may cause rapid initial cooling, potentially leading to cracking.
5. For large crucibles, it is advisable to avoid direct contact between the bottom of the crucible and the furnace floor. Use high-temperature resistant materials such as corundum plates to elevate the crucible, promoting air convection and extending the crucible's lifespan (as shown at right).
Destination
- UK
- the USA and Canada
- Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia (Slovak Republic), Slovenia, Spain, Sweden, and Switzerland
- Australia, China (Mainland), Hong Kong, Israel, Japan, South Korea, Liechtenstein, New Zealand, Singapore, Malaysia, Taiwan, and Thailand
- Argentina, Chile, Colombia, India, Monaco, Pakistan, Peru, Philippines, South Africa, Tunisia, Turkey, and Uruguay
- Rest of World
Shipping Times
We aim to process all in-stock orders within 3 business day, and unless requested otherwise, all items will be dispatched via courier. Average transit times are given below.
- China (Mainland), Hong Kong, Taiwan, and Singapore 1-2 working days
- EU/USA/Canada 3-5 working days
- Rest of World 4-6 working days
Please note that this does not take into account time taken to clear items through customs, as this varies from shipment to shipment.
If any items are out of stock or require manufacturing, then we will notify you of this and can arrange a partial shipment at no extra cost to you.
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