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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.
[1] [2] [3] For comparison, normal circulating boron levels are 0.1 to 80 μg/mL, acute boric acid toxicity has been associated with levels of 5.4 to 1,000 μg/mL, concentrations of 80 to 126 μg/mL have been observed without toxicity symptoms or signs, and boric acid levels of less than 200 μg/mL are thought to be safe by many researchers.
Sassolite is a borate mineral, specifically the mineral form of boric acid. It is usually white to gray, and colourless in transmitted light. It can also take on a yellow colour from sulfur impurities, or brown from iron oxides. [2]
Boric acid has a pK a of 9.14 at 25 °C. ... Additives such as Polysorbate 20 and milk powder can be used to add to BBS's functionality as a washing buffer or ...
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Boro-glycerine is a transparent yellow, tasteless, [1] compound of boric acid and glycerine. [2] It is a powerful antiseptic and is used primarily in oral and dental applications. Historically, it was also used in the preservation of food. [2]
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