oxalic acid

Học thuật
Thân thiện
oxalic acid

A scientist carefully measures oxalic acid crystals in a laboratory.

Definition
  1. Noun:
    • A toxic, colorless, crystalline organic acid: Oxalic acid is a chemical compound that occurs naturally in some plants. It is characterized by being poisonous, having no color, and forming crystal structures.
    • Found in oxalis and other plants: It is naturally present in plants of the genus Oxalis (like wood sorrel) as well as in other vegetables such as spinach and rhubarb.
    • Used as a bleach and rust remover and in chemical analysis: It has practical applications in removing stains (bleaching), dissolving rust from metals, and serving as a reagent in laboratory chemical analysis.
Usage Examples
  • Noun:
    • The high concentration of oxalic acid in rhubarb leaves makes them poisonous.
    • We used a solution of oxalic acid to clean the rust off the old tools.
    • In the lab, oxalic acid can be used to standardize solutions of potassium permanganate.
Advanced Usage
  • "to neutralize oxalic acid": to make oxalic acid chemically inactive or safe, often by reacting it with a base like calcium.
    • Adding milk, which contains calcium, can help neutralize oxalic acid found in some foods.
  • "oxalic acid dihydrate": the common, commercially available form of the acid which contains two water molecules per molecule of acid.
    • The experiment called for 5 grams of oxalic acid dihydrate.
Variants and Related Words
  • Oxalate (n): A salt or ester of oxalic acid. Oxalates are often the form in which this acid is found in plants and kidney stones.
    • Kidney stones can sometimes be composed of calcium oxalate.
  • Oxalis (n): A genus of plants, also known as wood sorrel, which contains oxalic acid.
    • The sour taste of oxalis comes from oxalic acid.
Synonyms
  • Ethanedioic acid: The systematic IUPAC chemical name for oxalic acid.
  • Wood bleach: A descriptive term referencing one of its common uses.
Related Phrases
  • "content of oxalic acid": refers to the amount or concentration of the acid present in a substance.
    • The nutritional analysis listed the oxalic acid content of the spinach.
  • "crystals of oxalic acid": describes its solid, crystalline physical form.
    • Under the microscope, the crystals of oxalic acid had a distinct shape.
oxalic acid

A scientist carefully measures oxalic acid crystals in a laboratory.

Noun
  1. a toxic colorless crystalline organic acid found in oxalis and other plants; used as a bleach and rust remover and in chemical analysis

Từ đồng nghĩa