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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.
Boric acid is an antiseptic used as a vaginal medication to treat vaginal infections including yeast infections, bacterial vaginosis, and trichomoniasis. [5] [2] It is administered as a capsule or suppository inserted into the vagina. [2] [6] The compound is not a pharmaceutical drug and is instead available over-the-counter.
This page provides supplementary chemical data on boric acid. Thermodynamic properties. Phase behavior Triple point? K (? °C), ? Pa Critical point? K (? °C), ?
Boric acid has a pK a of 9.14 at 25 °C. Applications. BBS has many uses because it is isotonic and has a strong bactericidal effect. [1] It can be used to dilute ...
A mixture containing citric acid, monopotassium phosphate, boric acid, and diethyl barbituric acid can be made to cover the pH range 2.6 to 12. [ 8 ] Other universal buffers are the Carmody buffer [ 9 ] and the Britton–Robinson buffer , developed in 1931.
It consists of a mixture of 0.04 M boric acid, 0.04 M phosphoric acid and 0.04 M acetic acid that has been titrated to the desired pH with 0.2 M sodium hydroxide. Britton and Robinson also proposed a second formulation that gave an essentially linear pH response to added alkali from pH 2.5 to pH 9.2 (and buffers to pH 12).
A suppository is a dosage form used to deliver medications by insertion into a body orifice (any opening in the body), where it dissolves or melts to exert local or systemic effects. There are three types of suppositories, each to insert into a different sections: rectal suppositories into the rectum , vaginal suppositories into the vagina ...
27.5 g of boric acid (CAS# 10043-35-3) 20 ml of 0.5 M EDTA (CAS# 60-00-4) (pH 8.0) Adjust pH to 8.3 by HCl. [2] TBE can be diluted to 1X prior to use in electrophoresis, 0.5x is acceptable as well. Higher concentrations will result in poor results due to excessive heat generation.
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