Platinum is a silver-white metal — it was once known as "white gold." It is extremely resistant to tarnishing and corrosion (which makes it known as a "noble metal") and is very soft and
The rarity of platinum is what makes it valuable. Just as in everything else, when there is greater demand compared to supply, the value of object increases. The same can be said for platinum. Compared to many metals, both gold and platinum are rare.
Platinum is a very different substance to a chemist. Platinum metal is silvery white and does not oxidise, properties that make it highly appealing for jewellery. It is more precious than silver but with prices more volatile than gold.
Pure platinum is a lustrous, ductile, and malleable, silver-white metal. Platinum is more ductile than gold, silver or copper, thus being the most ductile of pure metals, but it is less malleable than gold. Its physical characteristics and chemical stability make it useful for industrial applications.
Rarity and durability make the true white metal appealing to people searching for understated class. Resilient, beautiful and pure: platinum is all these, giving it an appeal that jewellery made of gold, silver and diamonds lacks. Platinum withstands daily wear, as it is one of the strongest natural materials.
Price. Platinum: Despite being nearly identical in appearance, platinum is more valuable than gold. Platinum's high price point can be attributed to its rarity and density as precious metals are often priced by their weight.
Platinum is considered a biologically compatible metal because it is non-toxic and stable, so it does not react with, or negatively affect body tissues. Recent research has also shown platinum to inhibit the growth of certain cancerous cells.
The difference in durability is really no contest between platinum and silver. Silver is a soft metal that wears down quickly and tarnishes easily. One of the biggest advantages of platinum is its high melting point, making it hard enough to not require any alloys.
c) Platinum is the most precious metal. - This sentence is grammatically correct and it is in the superlative degree. This is the correct adjective to use. This is the required answer.
Platinum is extremely durable and strong making it ideal for jewellery that's worn on a daily basis. It's highly resistant to stress and withstands both extreme heat and extreme cold, which means platinum jewellery will retain its good looks better than any other metal.
It drives the positive energies of Mercury and Venus, bestowing prosperity and attracting the blessings of God." Platinum is one of the most pure and rare metals on earth.
On the other hand, platinum usually performs better during times of economic growth. When manufacturing and industrial industries boom, platinum prices often do, too. Thus, it is a valuable short-term investment that usually comes with greater, immediate returns compared to gold.
Platinum is easier to maintain over time than white gold. Platinum is also the most hypoallergenic of all metals, because of its purity. Platinum is made of 95% pure platinum, where white gold is made out of 75% pure gold, and 25% other metals.
RHODIUM: TOP MOST VALUABLE METAL
Rhodium is the most valuable metal and exists within the platinum group of metals.
In 2021, estimates of the total proven world reserves of PGMs were 69,910 tonnes or 2.2 billion troy ounces and are located mostly in South Africa.
The simplest tests are heating and discoloration. If the item is heated, for example, in a Bunsen flame, platinum will be more difficult or impossible to melt and the platinum will not discolour. The effect of acid is another basic test. None of the common acids will attack Pt.
does platinum tarnish? No. Platinum will not change color or fade over time, unlike some other metals. It's naturally white and remains that way.
Identifying Platinum Through Visual Cues and Weight
Pure platinum jewelry, or jewelry that is at least 50% platinum, is typically marked with a stamp (also known as a hallmark). Usually, this mark will include a number like 850 followed by “plat or “pt”, which indicates the piece is 85% pure.
The only disadvantages to platinum are the higher cost and heavier weight. For example, platinum is a great metal for necklaces, bracelets and rings but not earrings, because the heavy weight may pull down more on your ears and cause discomfort.
Platinum is unaffected by air and water, but will dissolve in hot aqua regia, in hot concentrated phosphoric and sulphuric acids, and in molten alkali. It is as resistant as gold to corrosion and tarnishing.
Platinum metal is biologically inert, whereas soluble platinum compounds (e.g., halogenated salts) encountered in occupational settings can cause platinum salt hypersensitivity with symptoms that include bronchitis and asthma after inhalational exposure and contact dermatitis after skin exposure.
Experts posit that platinum is about 15–20 times scarcer than gold and approximately 60–100 times scarcer than silver, on the basis of annual mine production. Since 2014, platinum prices have fallen lower than gold. Approximately 75% of global platinum is mined in South Africa.
To be considered platinum, a piece must contain 95% or more of the metal, making it one of the purest precious metals you can buy. Over time, platinum will fade in a different way. It won't turn yellow, like yellow gold; but, it will begin to lose its shiny finish and build a natural patina (more on this in a bit).
Historically, platinum is always more costly than white gold because it is mined much less and is 30 times more rare than gold. To be more exact, 80 tons of Platinum are mined every year compared to gold's 2,700 tons. Platinum is also heavier and more pure than gold.