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Electrolyte (Dilute Sulfuric Acid)

Dilute (diluted with water) sulfuric acid, or Electrolyte as it is commonly referred to in the battery industry, is in the “strong acid” category, and a good electrolyte. It is highly ionized, much of the heat released in dilution coming from hydration of the hydrogen ions. The dilute acid has most of the properties of common strong acids. It turns blue litmus red. It reacts with many metals (e.g., with zinc), releasing hydrogen gas (H2) and forming the sulfate of the metal. It reacts with most hydroxides and oxides, with some carbonates and sulfides. Since it is dibasic (i.e., it has two replaceable hydrogen atoms in each molecule), it forms both normal sulfates (with both hydrogens replaced, e.g., sodium sulfate, Na2SO4 and acid sulfates, also called bisulfates or hydrogen sulfates (with only one hydrogen replaced, e.g., sodium bisulfate, NaHSO4).

The electrolyte used in industrial batteries is typically 1.285 specific gravity (spgr).

Related battery topics:




Sulfuric Acid

Specific Gravity

Water Levels


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Last Updated: Monday, December 03, 2007 - 6:20 AM Eastern Time.