الوصف

welcome to contact : *@********************ble style= "width: *2em; border-collapse: collapse; font-size: *8%"> Molecular formula H3BO3 Molar mass *1.*3 g mol−1 Appearance White crystalline solid Density 1.**5 g/cm3 Melting point **0.9 °C, **4 K, **0 °F Boiling point **0 °C, **3 K, **2 °F Solubility in water 2.*2 g/**0 mL (0 °C) 4.*2 g/**0 mL (*0 °C) 5.7 g/**0 mL (*5°C) *9.*0 g/**0 mL (*0 °C) *7.*3 g/**0 mL (**0 °C) Solubility in other solvents Soluble in lower alcohols moderately soluble in pyridine very slightly soluble in acetone Acidity (pKa) 9.*4 (see text) Applications: Medicinal; Laboratory; Insecticidal; Preservation; Lubrication; Nuclear power; Industrial; Pyrotechnics;