Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata “silver”. Wikipedia
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How do you melt platinum
An oxy-fuel flame is used to melt platinum because only oxygen and a large flame are produced. Use a platinum paste burner to melt the metal. The melt does not oxidize, so no flux is needed.
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Which metal has the highest melting point
tungsten
Why is platinum so rare
Platinum products and solutions are rare because iron is extremely rare. Platinum is found in very few mining deposits in the world, and many types of platinum are used in the automotive industry for vehicle emissions.
What is platinum melting and boiling point
An attractive silvery metal, platinum has a melting point of 1774°C, a boiling point of 3827°C and a density of 21.0 g/m³ at room temperature.
Does platinum have a low melting point
Pure American platinum has an incredibly high melting point of 1768°C (3214°F). That being said, it is much higher than magic money, or both have drop points around 1000 degrees Celsius. Why is platinum better than gold?
What is the melting and freezing point of platinum
These platinum alloys have the following melting point: 15% platinum iridium = 1821°C.
10% platinum iridium = 1788°C
5% iridium-platinum means 1779°C
What metal has a high melting point
Tungsten is a steely gray or possibly silvery white metal with high hardness, the highest melting point, and is resistant to air erosion at room temperature. As a brand new refractory metal (usually melting over time above 1650?) with the highest melting point value, it has decent high temperature resistance.
Which of the metals has the lowest melting point
Low Melting AlloysCerrobend
Serrolow stage 117
Surrow 174
Field
Galinstan
Minstrels
Lichtenberg
Lipowitz
newton
roses
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Why metals have high melting point and non metals have low melting point
Metals are generally good conductors of electricity, so all metals tend to react poorly with sodium and potassium. Non-metals are poor conductors of electricity and are mostly soft in nature. Therefore, the heating temperature of metals is high, and the melting point of non-metals is actually low.
Why should the melting point sample be finely powdered and tightly packed in the melting point capillary
Samples can be tightly bound in capillary tubes because the heat transfer in the sample is more sensitive and reproducible, and the reflectivity of the sample is also improved for easier automatic melt detection.
What are the reasons to determine the melting point of a sample in a melting point apparatus quizlet
Why are we calculating melting points in this herb chemistry lab? It helps to influence the purity or identity of any type of sample.
Why is the melting point of a sample which has been previously melted different from the melting point of the original sample
Contaminants tend to decrease and expand their melting range, so a cleaned sample should have a higher and much more compact melting range than the original contaminated sample.
What is the difference between high melting point and low melting point
The melting point of a new pure substance is always higher and also has a smaller range than any of our impure substance melting points or mixtures in general. The greater the amount of other raw materials, the lower the melting point, the wider the focus zone, which is often called the “mushy zone”.
Why does mercury Hg have such a low melting point how would you expect mercury’s melting point to be different if the D block contained more groups than it does
Mercury is at the end of the block d of substances, so it has the lowest vanishing point. If you included things like more groups, the melting point of mercury would go up.
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