rhodium

/'roudjəm/

Thân thiện

A jeweler carefully sets a rhodium-plated ring in a velvet display case.

Definition

1. Noun:
   • A white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum: Rhodium is a rare, silvery-white, hard, and corrosion-resistant transition metal. It is a member of the platinum group metals (PGMs) and is primarily obtained as a byproduct of platinum and nickel mining.

Examples of Usage

• Noun:
  • Rhodium is often used as a catalyst in automotive catalytic converters.
  • The price of rhodium fluctuates significantly due to its rarity and industrial demand.
  • This jewelry features a thin layer of rhodium plating to enhance its shine and durability.

Advanced Usage

• "Rhodium-plated": Describing an object coated with a thin layer of rhodium, commonly used in jewelry to provide a bright, white, tarnish-resistant finish.
  • Her silver ring is rhodium-plated to prevent tarnishing.

Variants and Related Words

• Rhodic (adj): Pertaining to or containing rhodium.
  • The rhodic compound was analyzed in the lab.

Synonyms

• Element 45: Referring to its atomic number.
• Platinum group metal (PGM): A categorical synonym, as rhodium is one of six metals in this group.

Related Phrases and Compounds

• Rhodium catalyst: A substance where rhodium is used to speed up chemical reactions, especially in industrial processes and pollution control.
  • The new factory uses a rhodium catalyst to reduce harmful emissions.
• Rhodium market: Refers to the trading and economic dynamics surrounding this commodity.
  • Investors are watching the volatile rhodium market closely.

Học thuật

Noun

1. a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum

Từ đồng nghĩa

• Rh
• atomic number 45