Standard Operating Procedures

• Boric oxide, B2O3, is the only important boron oxide. • It is the anhydride form of boric acid, H3BO3, a weak acid (Ka = 5.8 x 10–10). • Boric acid is used as an eyewash. • Heating causes a dehydration of boric acid, yielding a diprotic acid called tetraboric acid: 4 H3BO3 (s) ( H2B4O7 (s) + 5 H2O (g) ................
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