LYCOS RETRIEVER 
Hydrochloric Acid
built 634 days ago
Historically, hydrochloric acid (HCl) was prescribed for many symptoms and clinical conditions and was listed as a therapeutic intervention in various pharmacopoeia. However, beginning in the late 1920s and early 1930s, its common use by the medical establishment began to decline. While the therapeutic efficacy of oral administration of HCl is still equivocal, largely due to a scarcity of outcome-focused clinical intervention studies, a substantial body of evidence indicates the necessity of proper gastric pH for optimal health. HCl secretion is required for protein digestion by activating pepsinogen to pepsin. It ... renders the stomach sterile against orally-ingested pathogens, prevents bacterial or fungal overgrowth of the small intestine, encourages the flow of bile and pancreatic enzymes, and facilitates the absorption of a variety of nutrients.
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Hydrochloric acid is very corrosive and toxic. Do not enter without wearing specialized equipment suitable for the situation. Firefighter's normal protective clothing (Bunker Gear) will not provide adequate protection. A full-body encapsulating chemical protective suit with positive pressure self-contained breathing apparatus (NIOSH approved or equivalent) may be necessary.
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The ninety-four hydrochloric acid events which occurred at fixed facilities are summarized in Table 2. The total of locations (100) exceeds the number of events (94) because six events are described by two locations, for example, piping and storage above ground. Thirty-eight fixed facility events (40%) occurred in piping which included leaky valves within pipes. Problems during piping, storage above ground, and material handling accounted for about two thirds (68%) of the fixed facility events.
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The available evidence does not indicate that hydrochloric acid is a mutagen. No human or animal information was located. Positive and negative results were obtained in cultured mammalian cells and in bacteria. The positive results in mammalian cells are believed to be caused by low pH. A positive result was ... obtained in fruit flies (Drosophila) exposed to hydrogen chloride.
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Treatment - Trivalent chromium (Cr+3)can be removed with strong acid cation resin regenerated with hydrochloric acid. Hexavalent chromium (Cr+6)on the other hand requires the utilization of a strong base anion exchanger which must be regenerated with caustic soda (sodium hydroxide) NaOH. Reverse Osmosis can effectively reduce both forms of chromium by 90 to 97%. Distillation will ... reduce chromium.
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An employee of a restaurant mixed hydrochloric acid and household bleach to clean the floors. Nineteen persons (employees and patrons) were evacuated. Seven persons were transported to area hospitals where five were treated and released, and two were admitted. The other twelve were treated on the scene by Emergency Medical Services.
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Hydrochloric Acid