Potassium Perrhenate (KReO4)-Powder

Characteristic

Sodium perrhenate (also known as sodium rhenate(VII)) is the inorganic compound with the formula NaReO₄ It is a white solid that is soluble in water. It is a common precursor to other rhenium compounds. Its structure resembles that of sodium perchlorate and sodium permanganate.

Chemical formula：NaReO₄

Molar mass：273.194 g/mol

Appearance：White solid

Density：5.39 g/cm³

Melting point：414 °C (777 °F; 687 K)

Solubility in water：103.3 g/100 mL (0 °C)

                                  114.0 g/100 mL (25 °C)

                                  145.3 g/100 mL (30 °C)

                                  173.0 g/100 mL (50 °C)

Solubility：soluble in ethanol (>1130 g/L at 25 °C)

Crystal structure：tetragonal