PLATINUM ( Pt )
Platinum is a chemical element with the symbol 'Pt’ and the 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”. Platinum is one of the least reactive metals. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. Consequently, platinum is often found chemically uncombine as native platinum. Because it occurs naturally in the alluvial sands of various rivers, it was first used by pre-Columbian South American natives to produce artifacts. It was referenced in European writings as early as 16th century, but it was not until 'Antonio de Ulloa' published a report on a new metal of Colombian origin in 1748 that it began to be investigated by scientists.
Physical Properties Of Platinum
- Melting point 2041.4 K (1768.3 °C, 3214.9 °F)
- Boiling point 4098 K (3825 °C, 6917 °F)
- Density (near r.t.) 21.45 g/cm3
Platinum is Naturally white, the rarest of precious metals and the most secure setting for diamonds and To the precious stones.
Platinum is the perfect choice for an expression of love that will last a lifetime.
PURITY
Platinum is the purest of all the precious metals used for the fabrication of premium jewellery and is commonly alloyed into a purity of 95%. Due to natural whiteness In Platinum; it will not cast any colour into a diamond. Platinum is usually 95% pure in jewellery so will never fade or tarnish Platinum is hypoallergenic, ideal for those with sensitive skin.
RARE
Platinum, a highly valued and desired metal, has a wide range of uses, including jewellery, catalytic converters, electrical contacts, pacemakers, medication, and magnets. Because it is rare — there are only about 5 parts per billion by weight in Earth's crust, According to Chemicool — platinum tends to be very pricey. Platinum is 30 times rarer than gold. Platinum jewellery is exclusive, a statement of individuality.
ETERNAL
Platinum's durability and resistance mean your jewellery will last for a lifetime of wear. Platinum does not wear away, so it holds precious stones securely From Fabergé to Cartier, the world's greatest jewellery designers have always preferred working with platinum. Its remarkable pliability allows it to be drawn out to a fine wire, enabling the creation of intricate platinum designs which could not be fashioned from other precious metals. Platinum is also in demand in other fields, from use in catalytic converters in the automotive industry to pacemakers in healthcare. Its unique properties mean that it can be used in the body without being affected by the oxidizing reaction of blood. Of the 218 tonnes of platinum sold in 2014, 98 tonnes were used for vehicle emissions control devices (45%), 74.7 tonnes for jewellery (34%), 20.0 tonnes for chemical production and petroleum refining (9.2%), and 5.85 tonnes for electrical applications such as hard disk drives (2.7%). The remaining 28.9 tonnes went to various other minor applications, such as medicine and biomedicine, glassmaking equipment, investment, electrodes, anticancer drugs, oxygen sensors, spark plugs and turbine engines etc. Platinum is probably the most recognized of the PGMs because of its use in jewellery, but its main application is the manufacture of catalytic converters as well as other industrial applications. Platinum has a high melting point and temperature stability, is highly corrosion oxidation resistant, and it is a good oxidation catalyst. Platinum is biologically compatible and has many significant applications in medicine.