Characteristic

Rubidium sulfate is a sulfate of rubidium. The molecular formula of the compound is Rb₂SO₄. The molecular weight of this compound is 266.999 g/mol. An acid sulfate exists, rubidium hydrogen sulfate.

Chemical formula：O₄Rb₂S

Molar mass：266.99 g·mol⁻¹

Density：3.613

Melting point：1,050 °C (1,920 °F; 1,320 K)

Boiling point：1,700 °C (3,090 °F; 1,970 K)

Solubility in water：50.8

Refractive index (nD)：1.513