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Statements about ruthenium in precious metals
Release time:
25 May,2015
Ruthenium, a platinum group metal, seems to be a forgotten corner of the precious metals market. There is little description or evaluation of it, and the market is extremely sluggish, especially recently. Interest in ruthenium is relatively low compared to other platinum group metals. However, the author believes that ruthenium will not be forgotten.
Ruthenium, a platinum group metal, seems to be a forgotten corner of the precious metal world, rarely described or evaluated. The market is extremely sluggish, especially recently, and interest in ruthenium is relatively low compared to other platinum group metals. However, I believe ruthenium will not be forgotten.
Ruthenium's abundance in the Earth's crust is only 0.004 g/ton (highlighting its rarity). Its melting point is 2310℃. Due to its dense hexagonal close-packed crystal structure, it is difficult to process, even at high temperatures. This results in ruthenium having limited applications, far less than platinum and palladium. However, ruthenium's chemical properties are quite stable. It is not corroded by aqua regia, sulfuric acid, hydrochloric acid, hydrofluoric acid, and phosphoric acid at 100℃, making it ideal for the chlor-alkali industry. Because ruthenium has the lowest price among platinum group metals, it is an ideal coating for titanium anodes. It has a very low overpotential and can be used for a long time under high current density. Therefore, as early as 1972, ruthenium-coated titanium anodes were put into industrial production, replacing graphite electrodes in chlor-alkali electrolysis cells, increasing production by almost double, saving 15% on electricity, and improving product quality and service life. It is the most ideal anode material for electrolysis cells to date. Ruthenium's contribution is significant. As an alloying element, ruthenium is also widely used. For example, 5% ruthenium is often added to the alloy materials of precision potentiometers that require low contact resistance and high wear resistance. It is sometimes also used as an alloying agent in platinum jewelry. Ruthenium has a wide range of applications in the field of catalysts, exhibiting greater catalytic activity than other metals in certain reduction reactions. Therefore, its usage is steadily increasing in catalytic reactions such as oxidation, dehydrogenation, isomerization, and carbonylation in organic synthesis (Metallurgical Industry Press, Application of Rare Metals, Lower Volume).
There are rumors that ruthenium has successfully entered the IT field as a superior functional material (this is just hearsay and unconfirmed). In my opinion, companies or traders with inventory pressure need not panic or worry excessively. Ruthenium is, after all, a rare metal with unique properties, and price fluctuations are normal. Every element in the platinum group metals experiences such fluctuations, with significant price swings. Platinum, palladium, rhodium, and iridium have all experienced cycles from troughs to peaks. Currently, this is a severe test of patience and perseverance for those with inventory. Currently, the entire precious metals market is on an upward trend. It is premature to say that ruthenium will not rebound. Instead, we may have to endure a painful period (or pay a painful price). Sooner or later, it will return to its reasonable price. Here, we need a positive attitude, no need to be anxious or impatient, just wait for its resurgence. Although we don't have a timetable, we must believe that persistence will bring rewards and victory.
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