Potassium tetraborate tetrahydrate, min. 99.5 %, cryst., 250 g, plastic

Potassium tetraborate tetrahydrate, min. 99.5 %, cryst., Molar mass (M) 305,50 g/mol, Density (D) 1,911 g/cm³, Boiling point (bp) 850 °C, CAS No. 12045-78-2, EC No. 215-575-5, Empirical formula K₂B₄O₇ · 4 H₂O