Tin is a silvery white metal that is widely used in metals such as solder and bearings. It is chemically similar to lead. However, it is malleable and does not easily oxidize in air.
Tin’s melting point is 232C. Lead, on the other hand, melts at 327C. The low melting point of tin facilitates its use as an oxidation-resistant coating material.
The melting point of tin is important because it determines how it will behave when exposed to high heat. Knowing this will help you keep it at a constant temperature. This will make it easier to work with the material.
The melting point of a metal can vary a lot from one alloy to another. This is because the presence of impurities can extend its range. Another factor that can affect the melting point is external pressure. Higher pressure can make the transformation more difficult.
Moreover, the presence of other metals can also change the melting point. This makes it difficult to use tin alloys.
Tin can be divided into two oxidation states: b-tin and a-tin. When heated, b-tin changes to a white colour, whereas a-tin changes to a grey-coloured metal.
Metal alloys have a lower melting point than the pure metal. These are made by mixing molten metals in the appropriate ratio. Alloys with 62 per cent tin have a freezing temperature of 183C, while alloys with 20 per cent tin start freezing at 279C.
Moreover, the presence of lead will also decrease the freezing point of a tin alloy. This is because a molten tin alloy contains lead, which reduces its freezing point.
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