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It is chemically inert and found in nature. It can be dissolved in aqua regia and Fluorine will also react with it though.
It is chemically inert and found in nature. It can be dissolved in aqua regia and Fluorine will also react with it though.
A cup of aqua regia
Dissolving palladium (in powder form) in aqua regia (with some chlorine bubbling). Note that aqua regia is very corrosive and dangerous.
Depends on what metal and what acid. Most common metals can be attacked by some type of acid. Other more rare and exotic metal are more resistant. Gold Platinum are resistant to almost all acids except for a mixture of Nitric and Hydrochloric acid (aqua regia) and in the case of platinum the mixture must be hot. Tungsten and Tantalum are also in this category. The only metal that is completely resistant to all acids at any temperature is Iridium, a platinum group metal. So the answer would be Iridium.
Silver can be resistant to boiling aqua regia due to formation of silver chloride.
Ruthenium (Ru) balls
It is chemically inert and found in nature. It can be dissolved in aqua regia and Fluorine will also react with it though.
It is chemically inert and found in nature. It can be dissolved in aqua regia and Fluorine will also react with it though.
See the links below for your answer about the Regia Marina and Regia Aeronatica.
Drosera regia was created in 1926.
Vexitomina regia was created in 1842.
Fuerza Regia was created in 2001.
Utricularia regia was created in 2009.
Diploschizia regia was created in 1981.
Azygophleps regia was created in 1891.
Odontesthes regia was created in 1821.