When it comes to laboratory equipment, platinum dishes are not the first tools that spring to mind. However, their role in various scientific processes is crucial. This blog will dive into the world of platinum dishes and their significance in laboratories.

What are Platinum Dishes?

Platinum dishes, also known as platinum crucibles, are small dishes made from platinum that are used in laboratories for various purposes. Due to the unique properties of platinum, these dishes are resistant to heat, corrosion, and various chemical reactions, making them ideal for use in a wide range of scientific experiments.

Why Platinum?

Platinum is a rare, precious metal that possesses several properties that make it an excellent material for laboratory dishes. Firstly, it has a high melting point (over 3000 degrees Fahrenheit), which means it can withstand high temperatures without deforming or melting. This makes it perfect for processes such as calcination, where samples are heated to high temperatures to remove volatile substances.

Secondly, platinum is chemically inert, meaning it does not react with most other chemicals. This is a crucial property in a laboratory setting, where the dish should not interfere with the reactions it’s hosting. The inert nature of platinum ensures that the results of an experiment are not skewed by reactions with the dish itself.

Lastly, platinum dishes are highly durable and can withstand repeated use without losing their shape or properties. This makes them a cost-effective choice in the long run, despite their high initial cost.

Applications of Platinum Dishes in the Laboratory

Platinum dishes are used in a variety of applications within the laboratory. One of the most common uses is in the field of analytical chemistry. Here, they are used for processes such as gravimetric analysis, where a substance is heated to constant weight to determine its composition.

In addition, they are utilized in the preparation of samples for X-ray fluorescence (XRF) analysis. This technique is used to determine the elemental composition of materials, and the high heat and chemical resistance of platinum dishes make them ideal for this process.

Platinum dishes are also used in the field of materials science, particularly in the study of high-temperature materials. The ability of these dishes to withstand high temperatures without reacting or deforming makes them perfect for these types of studies.


In conclusion, while platinum dishes may not be the most well-known pieces of laboratory equipment, their role in various scientific processes is undeniable. From analytical chemistry to materials science, these dishes play a vital role in advancing our understanding of the world around us. So, the next time you think about laboratory equipment, spare a thought for the humble platinum dish!

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