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Boric acid is a weak acid, with pK a (the pH at which buffering is strongest because the free acid and borate ion are in equal concentrations) of 9.24 in pure water at 25 °C. But apparent p K a is substantially lower in swimming pool or ocean waters because of interactions with various other molecules in solution.
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Borax is also easily converted to boric acid and other borates, which have many applications. Its reaction with hydrochloric acid to form boric acid is: Na 2 B 4 O 7 ·10H 2 O + 2 HCl → 4 H 3 BO 3 + 2 NaCl + 5 H 2 O. Borax is sufficiently stable to find use as a primary standard for acid-base titrimetry. [17]: p.316
[5] [1] Boric acid has also been used in combination with other agents such as metronidazole to treat trichomoniasis. [5] It may be a particularly applicable option in women with trichomoniasis who have nitroimidazole intolerance or resistance. [5] [1] Boric acid may be useful in the treatment of vulvovaginal trichosporonosis as well. [27]
Other formulations have been developed over time. In 1916, Marcel Daufresne substituted sodium bicarbonate for Dakin's boric acid as buffering agent. [7] [17] This formulation is the basis of current commercial products. [18] The concentration chosen by Dakin (0.5%) was the maximum highest concentration found tolerable to the skin.
In animals, boric acid/borate salts are essentially completely absorbed following oral ingestion. Absorption occurs via inhalation, although quantitative data are unavailable. Limited data indicate that boric acid/salts are not absorbed through intact skin to any significant extent, although absorption occurs through skin that is severely abraded.
The Ajax brand was extended to a line of household cleaning products and detergents, which enjoyed its greatest success in the 1960s and beginning of the 1970s. Ajax All Purpose Cleaner with Ammonia, introduced in 1962, was the first major competitor to Procter and Gamble's Mr. Clean (debuted 1958). Ajax's success as the so called "White ...
Hypochlorous acid acts as a mild antiseptic and anti-inflammatory agent to help kill harmful bacteria and reduce irritation on the skin, says Azadeh Shirazi, M.D., board-certified dermatologist at ...