99.3% Alumina Crucible by OTOOLWORLD Lab Crucible 90MMx30MM 100ML

Description

Product Overview

The OTOOLWORLD 99.3% alumina crucible is crafted from high‑purity Al2O3, providing exceptional thermal stability and chemical inertness. With a maximum operating temperature of 1650°C, it reliably withstands the most demanding laboratory processes, from melt testing to oxidation studies. The crucible measures 90mm in length, 30mm in width, and holds approximately 100ml of material, offering a convenient volume for small‑scale experiments while maintaining a compact footprint on the bench.

Precision machining ensures uniform wall thickness and a smooth interior surface, reducing the risk of sample adhesion and cross‑contamination between runs. The crucible’s lightweight design—just 5.3 ounces—facilitates easy handling and rapid transfer between furnaces, crucible tongs, and cooling stations. Its dimensions (3.54 x 3.54 x 1.18 inches) are optimized for standard laboratory equipment, fitting seamlessly into common furnace racks and ceramic holders.

Manufactured by OTOOLWORLD, a trusted name in scientific glassware, this crucible meets rigorous quality standards. The product is listed as #63 in Lab Crucibles on Amazon, reflecting its popularity among researchers who require consistent performance. The crucible’s durability is further enhanced by a controlled cooling protocol, which helps prevent thermal shock and prolongs service life.

Key specifications include:

• Material: 99.3% pure alumina (Al2O3)
• Maximum temperature: 1650°C
• Dimensions: 90mm x 30mm (approx. 100ml capacity)
• Weight: 5.3 ounces (150 g)
• Model number: 90MMx30MM

Usage

This crucible is ideal for a wide range of laboratory applications, including high‑temperature melt experiments, oxidation and reduction studies, and small‑scale alloy synthesis. Researchers in materials science, chemistry, and metallurgy will find the crucible’s temperature tolerance and chemical resistance essential for accurate assay results. Its compact size makes it suitable for use in bench‑top furnaces, tube furnaces, and high‑temperature ovens commonly found in academic and industrial labs.

When employing the crucible, it is recommended to heat gradually, limiting the temperature rise to no more than 50°C per minute. This controlled heating minimizes thermal gradients that could otherwise cause cracking or deformation. After the experiment, allow the crucible to cool slowly to ambient temperature before handling, which helps preserve the integrity of the alumina structure and extends the product’s usable lifespan.

Typical use cases include preparing small batches of ceramic glazes, testing the thermal stability of novel compounds, and conducting controlled atmosphere experiments where the crucible’s inertness prevents unwanted reactions with gases such as oxygen, nitrogen, or hydrogen.

Why Choose Us

Choosing the OTOOLWORLD alumina crucible means selecting a product backed by years of expertise in laboratory glassware manufacturing. Each crucible undergoes a stringent quality control process that includes dimensional verification, material purity testing, and performance validation at high temperatures. This ensures that every unit delivered meets the exacting standards required for scientific research.

Our commitment to customer satisfaction extends beyond the point of sale. We provide detailed usage guidelines, including recommended heating and cooling rates, to help users achieve optimal results while protecting the crucible from premature wear. Should any issues arise, our responsive technical support team is available to troubleshoot and offer solutions, reinforcing the reliability of your investment.

In addition, OTOOLWORLD offers a straightforward replacement policy for defective units, reflecting confidence in the durability of our alumina crucibles. By selecting our product, laboratories benefit from reduced downtime, consistent experimental outcomes, and a cost‑effective solution for high‑temperature applications.

Key Features

• High‑purity 99.3% alumina provides excellent thermal resistance up to 1650°C.
• Compact 90x30mm size holds 100ml, perfect for small‑scale laboratory tests.
• Smooth interior surface minimizes sample adhesion and eases cleaning.
• Lightweight design (5.3 oz) enables easy handling and quick transfer between equipment.
• Responsive customer support and clear usage guidelines ensure reliable performance and extended service life.

FAQ

What temperature range can the crucible safely handle?

The crucible is rated for continuous operation up to 1650°C. For best results, avoid exceeding this limit and follow the recommended heating rate of no more than 50°C per minute.

Can the crucible be used with reactive gases?

Yes. Because the crucible is made of high‑purity alumina, it is chemically inert to most gases, including oxygen, nitrogen, and hydrogen, making it suitable for controlled atmosphere experiments.

How should I clean the crucible after use?

Allow the crucible to cool slowly to room temperature, then rinse with deionized water. For stubborn residues, a mild alkaline solution can be used, followed by thorough rinsing and drying.

Is there a warranty or replacement policy?

OToolWorld offers a replacement for any crucible that arrives defective. Contact our support team with the order details, and we will arrange a prompt replacement.

What is the recommended cooling procedure?

After heating, let the crucible cool inside the furnace or in a controlled environment to avoid rapid temperature changes that could cause thermal shock. This practice helps maintain the crucible’s structural integrity over many cycles.