uranyl

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uranyl

A scientist carefully handles a uranyl compound in the laboratory.

Definition

Noun: - The bivalent radical UO₂ which forms salts with acids: A charged group of atoms (a radical) containing one uranium atom and two oxygen atoms, with a net positive charge of 2+. It is the characteristic ionic species that forms the basis of many uranium compounds, particularly when combined with acidic anions.

Usage Examples
  • Noun:
    • The compound was identified as uranyl nitrate. (The chemical substance was recognized as the salt formed from the uranyl cation and nitrate anions.)
    • Uranyl ions are often responsible for the yellow color in certain mineral samples. (The UO₂²⁺ radicals commonly cause a yellow hue in some types of rocks and minerals.)
    • Scientists studied the mobility of the uranyl group in groundwater. (Researchers investigated how the UO₂²⁺ radical moves through underground water sources.)
Advanced Usage
  • "Uranyl acetate": A specific salt used as a stain in electron microscopy.
    • The tissue sample was stained with uranyl acetate for better contrast under the microscope.
  • "Uranyl carbonate complexes": Refers to chemical structures where the uranyl ion is bound to carbonate ions, affecting its behavior in the environment.
    • The formation of uranyl carbonate complexes increases its solubility in water.
Variants and Related Words
  • Uranyl ion (n): Another term for the uranyl radical (UO₂²⁺), emphasizing its ionic nature.
  • Uranous (adj): Pertaining to uranium in a lower +4 oxidation state, contrasting with the +6 state in uranyl.
  • Uranate (n): A salt containing a different uranium-oxygen anion (e.g., UO₄²⁻), often confused with but distinct from uranyl salts.
Synonyms
  • Uranyl cation: A more precise synonym highlighting its positive charge.
  • Uranyl radical: A traditional chemical term, though "radical" in this context means a charged group, not a free radical.
Related Phrases and Compounds

(Note: The following are common chemical compound names containing the uranyl group, not phrasal verbs.) - Uranyl sulfate: The salt formed between the uranyl ion and sulfate. - Uranyl phosphate: An often insoluble salt important in uranium mineralogy. - Uranyl diacetate: An alternative name for uranyl acetate.

uranyl

A scientist carefully handles a uranyl compound in the laboratory.

Noun
  1. the bivalent radical UO2 which forms salts with acids