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A Guide to Cleaning Platinum Crucibles

Platinum crucibles are frequently exposed to extremely harsh environments. These environments can decrease the lifetime of the product and its accuracy of measurement. This article will act as a brief overview of how to clean crucibles correctly.

The Benefits of Platinum Crucibles

Platinum is a popular material for crucibles as it has excellent chemical resistance even at extremely high temperatures. Platinum is not subject to attack by any acid and cannot be oxidized at any temperature. This is why platinum crucibles are so well suited to sample preparation of fusion samples and wet chemical digestions.

High-performance platinum crucibles are known for a long length of service and high repeatability due to their extreme chemical resistance.


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Orbis Laboratory Jaw Crushers

Introducing Orbis Laboratory Jaw Crushers.  Our Orbis range consists of dual acting fine crushers, designed by experts with decades of experience in sample preparation.  Our flagship OM100 can take core samples down to 2mm in a single pass.


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The Different Types of Laboratory Crucibles

Laboratory crucibles have been designed to bear extremely high temperatures and as such they must be made of robust materials. Laboratory crucibles are small utensils that are used for conducting high-temperature chemical reactions and analyses.

This article will outline some different types of laboratory crucibles, their benefits, and their uses.

Materials used for Laboratory Crucibles


Porcelain is an extremely economical material that can withstand sudden temperature changes. Laboratory crucibles made from this material have good chemical and acid resistance, are low cost, and can be used in temperatures up to 1050°C. However, porcelain laboratory crucibles are incompatible with HF and alkali salts.

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