Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A hard, durable, silvery-white metallic element that is used to form high-temperature alloys with platinum and is plated on other metals to produce a durable corrosion-resistant coating. Atomic number 45; atomic weight 102.905; melting point 1,966°C; boiling point 3,727°C; specific gravity 12.41; valence 2, 3, 4, 5, 6. See Table at element.
Century Dictionary and Cyclopedia
- n. Chemical symbol, Rh; atomic weight, 103 (Jörgensen). A metal discovered in the beginning of the nineteenth century by Wollaston, associated with palladium in the ore of platinum. Rhodium fuses in the flame of the oxyhydrogen blowpipe, but with greater difficulty than platinum. When fused it is grayish-white, resembling aluminium in luster and color, and has a specific gravity of 12.1. When pure it is almost insoluble in acids, but if in the state of an alloy it is dissolved by aqua regia. Of all the metals of the platinum group rhodium is the one most easily attacked by chlorin.
Wiktionary
- n. a metallic chemical element (symbol Rh) with an atomic number of 45.
GNU Webster's 1913
- n. (Chem.) A rare element of the light platinum group. It is found in platinum ores, and obtained free as a white inert metal which it is very difficult to fuse. Symbol Rh. Atomic weight 104.1. Specific gravity 12.
WordNet 3.0
- n. a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
Etymologies
- From Ancient Greek ῥόδον (rhodon, "rose"), because of the colour of its salts' solutions. (Wiktionary)
- Greek rhodo-, rhodo- + -ium. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“This group includes the well-known Platinum and the relatively obscure metals called rhodium, iridium, ruthenium and osmium.”
“They're made of rhodium, which is an alloy of platinum. ”
The Wall Street Journal: Weekend of Party-Hopping in the Hamptons
“This is usually achieved by electroplating the jewelry with rhodium.”
“Relative to platinum and gold, the rhodium market is small and illiquid, worth just $1.2 billion at today's price.”
“In terms of rarity, rhodium makes gold look like paper dollars: Last year, 114 ounces of gold were mined for every ounce of rhodium, according to Deutsche Bank.”
“Yet, at just under $1,700 an ounce, rhodium is now cheaper than gold.”
“As global demand for vehicles grows and emissions standards tighten further, so the surpluses of rhodium built up in recent years should be worked off.”
“More importantly, rhodium has disconnected from its cousin platinum, falling 31% this year while platinum is down less than 10%.”
“That said, rhodium has solid medium-term prospects.”
“Erica Rannestad , an analyst at commodities consultancy and investment bank CPM Group, reckons rhodium consumption will grow by less than 5% this year against a 7% increase in supply.”
Lists
These user-created lists contain the word ‘rhodium’.
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SCIE - EU nomenclature
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
silicon, silica, shrimp, shelve, shallot, serine, seedling, septic, secretin, seaweed, screening, Scomber and 1171 more...
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TECH - metals and alloys
toughness, furnace, vibration, bronze, modulus, tubing, flow, zinc, melting, porta, embrittle, wetting and 262 more...
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IMCO - EU nomenclature
includes words of the "Prodcom list"
abaca, abdominal, abrasive, absorbent, absorber, accelerator, accessory, account book, accumulator, acebutolol, acetaldehyde, acetamide and 4515 more...
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Chemical Elements
A list of chemical elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 106 more...
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The Elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 99 more...
Tweets
Looking for tweets for rhodium.
oroboros Rh Dec 1, 2007