Acid

Introduction: Acid

Description of Acid

Acid: (1) A compound yielding a hydrogen ion in a polar solvent (e.g., in water); acids form salts by replacing all or part of the ionizable hydrogen with an electropositive element or radical. (2) Colloquially, any chemical compound that has a sour taste (given by the hydrogen ion). (3) Sour; sharp to the taste. (4) Relating to acid; giving an acid reaction. For individual acids not shown here, see specific names. [L. acidus, sour]
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.

Acid: substances whose aqueous solutions are characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals to form salts; yields hydrogen ions when dissolved in water, acts as a proton donor, and can accept a pair of electrons to form a covalent bond.
Source: CRISP

Acid: Chemical compounds which yield hydrogen ions or protons when dissolved in water, whose hydrogen can be replaced by metals or basic radicals, or which react with bases to form salts and water (neutralization). An extension of the term includes substances dissolved in media other than water. (Grant & Hackh's Chemical Dictionary, 5th ed).
Source: MeSH 2007

Terms associated with Acid:

More specific terms for Acid:

• Acids, Noncarboxylic

Source - MeSH 2007

• boric acid
• boronic acid
• hydrochloric acid
• nitrous acid

Source - CRISP

Broader terms for Acid

• reagent /indicator

Source - CRISP

The term Acid can be used for:

• phosphonous acid
• phosphoric acid
• phosphorous acid
• phosphorus acid

Source: CRISP

The description of Acid may also be used for the following terms:

• haloacid
• hydrofluoric acid
• hydrogen fluoride
• periodic acid

Source: CRISP

Hierarchical classifications of Acid

The following list attempts to classify Acid into categories where each line is subset of the next.

MeSH 2007 Hierarchy:

• Inorganic Chemicals
  • Acids

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