Chloride Contamination Can Drive Bulging and End-of-Life Electrolytic Behavior

What the evidence preview establishes

Chloride in the electrolyte and corrosion product supported a cyclic aluminum-dissolution mechanism that generated hydrogen, increased leakage, and promoted bulging. Depolarizer depletion or low concentration may have aggravated the condition.

Why this case matters

Electrolytic-capacitor bulging is a chemical and system-level symptom, not merely a visual defect. Contaminant chemistry, electrolyte condition, electrical performance, cleaning exposure, and operating stress should be evaluated together.