One of the mysteries of the English language finally explained.
The chemical element of atomic number 45, a hard silvery-white metal of the transition series, typically occurring in association with platinum.
Rhodium is chiefly used in alloys with platinum, where it increases hardness. The pure metal is used in electroplating for decorative purposes and to form reflecting surfaces
- ‘But as far as I know, titanium is not rhodium plated.’
- ‘Wollaston found two new elements, rhodium and palladium, in an ore found originally in South America.’
- ‘These catalysts are commonly platinum, or palladium and rhodium.’
- ‘Weak palladium and rhodium prices also affected its precious metals division, though demand for platinum helped to cushion the fall.’
- ‘This is achieved through a catalyst, usually rhodium or platinum that lines the inside of the converter.’
- ‘Nickel, rhodium, and iridium have their uses, and from there you go off into some real esoterica.’
- ‘It has also shed light on how the rhodium metal surface adsorbs and removes carbon monoxide and nitrogen oxide gases in car exhaust converters.’
- ‘Recently, the Grenoble group discovered that uranium rhodium germanium is a ferromagnetic superconductor at ambient pressure.’
- ‘In this case the relevant market was that for platinum and rhodium, world-wide, and there were only three significant competitors, all based in South Africa.’
- ‘Actually, the color of white gold is light grey but it is coated with a layer of rhodium.’
- ‘With titanium bolts, the locknuts are plated with rhodium or silver to prevent galling and seizing of the nut to the bolt.’
- ‘It employs a chilled mirror of polished rhodium as the primary humidity instrument and infrared optics to control thermoelectric cooling and heating.’
- ‘They have been embellished with red enamel spots and have high mirror polished rhodium tips to add to the brilliance.’
- ‘Dazzling diamonds studded on rhodium plated gold jewellery are the most popular jewellery pieces.’
- ‘To give one example, rhodium, a platinum metal, makes up about 2% of the fission products, and the price of rhodium fluctuates between the price of gold and 10 times that.’
- ‘Chemists discovered that in the presence of light, rhodium compounds react with DNA, and they ultimately kill malignant cells by interfering with their ability to reproduce.’
- ‘Yip said utilisation capacity at its silver salt, palladium salt and rhodium sulphate production lines had exceeded 70 per cent since they opened in January last year, and they were expected to reach 100 per cent by year-end.’
- ‘They were faceted ‘onyx,’ set in sleek gold-toned rhodium: real brazen, but real cool.’
- ‘They used a rhodium metal complex hooked to a fluorous ponytail as a test catalyst and dissolved this vivid orange-red compound in the high-boiling organic solvent dibutyl ether.’
- ‘Neither palladium nor rhodium found much use in early 19th century science and Wollaston was unable to sell his store of the metals, although he attempted to discover applications for them.’
Early 19th century: modern Latin, from Greek rhodon ‘rose’ (from the colour of the solution of its salts).
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