Definition

1. Noun:
   • A type of alcohol used as an antifreeze or a solvent: Isopropanol is a clear, colorless, flammable liquid chemical compound. It is a secondary alcohol, often used for its disinfectant and cleaning properties, as well as in industrial processes.

Usage Examples

• Noun:
  • The laboratory uses isopropanol to sterilize equipment.
  • Isopropanol is a common ingredient in many rubbing alcohol formulations.
  • As an antifreeze, isopropanol has a lower freezing point than water.

Advanced Usage

• Technical/Industrial Context: In chemistry and manufacturing, "isopropanol" specifically denotes the compound with the formula C₃H₈O (or (CH₃)₂CHOH). It is a key ingredient in pharmaceuticals, cosmetics, and as a chemical intermediate.
  • The reaction requires anhydrous isopropanol as the solvent.

Variants and Related Words

• Isopropyl alcohol: This is the systematic name and a common synonym for isopropanol.
  • Isopropyl alcohol is another term for isopropanol.
• Rubbing alcohol: A common household product that is typically a solution containing a high percentage of isopropanol (or sometimes ethanol) in water.
  • Rubbing alcohol often contains 70% isopropanol.

Synonyms

• Isopropyl alcohol: The full chemical name.
• 2-propanol: The IUPAC (International Union of Pure and Applied Chemistry) name.
• Sec-propyl alcohol: An alternative name indicating its structure as a secondary alcohol.

Related Phrases and Compounds

• Isopropanol solution: A mixture of isopropanol with water or other substances.
  • A 90% isopropanol solution is highly effective for disinfection.
• Anhydrous isopropanol: Isopropanol containing little to no water.
  • The synthesis must be performed with anhydrous isopropanol.

Notes on Meaning

• The term "isopropanol" refers strictly to the specific chemical compound. It is not a general term for all alcohols or antifreezes. Its primary meanings are tied to its roles as a solvent, disinfectant, and antifreeze agent.

Noun

1. alcohol used as antifreeze or a solvent