The Lark LAC-25 Alumina Crucible 25ml is a high-precision laboratory vessel designed for extreme thermal environments and sensitive material processing. Manufactured from 99.95% high-purity Alumina (Al_2O_3), this 25ml crucible provides superior resistance to chemical attack and can withstand continuous operating temperatures up to 1750°C. Its ultra-pure composition ensures minimal interference with your samples, making it an essential tool for high-temperature sintering, melting, and quantitative analysis where accuracy is paramount.

Note: This model is supplied without a lid.

Key Features

• Superior Purity: 99.95% Alumina construction prevents sample contamination.

• Extreme Heat Tolerance: Rated for reliable performance up to 1750°C.

• High Chemical Stability: Exceptional resistance to corrosive acids and alkaline fluxes.

• Dense Ceramic Structure: Low porosity prevents sample absorption and leakage.

• Precision Engineering: Uniform wall thickness ensures consistent heat distribution.

Technical Specifications

Primary Applications

1. Material Science: Firing and sintering of advanced technical ceramics.

2. Chemical Analysis: High-temperature fusion and quantitative analysis.

3. Metallurgy: Melting precious metals and alloys in a carbon-free environment.

4. Ashing Processes: Determination of ash content in organic and inorganic materials.

5. Thermal Analysis: Ideal for use in muffle furnaces and high-heat experiments.

Usage & Maintenance Tips

• Thermal Shock Prevention: Maintain a heating and cooling rate of no more than 5°C/min to prevent cracking.

• Pre-Conditioning: Bake the crucible at 150°C for 30 minutes before first use to eliminate moisture.

• Proper Handling: Always use high-temperature tongs and avoid direct contact with heating elements.