Atomistry » Rubidium » Chemical Properties » Rubidium sulphate
Atomistry »
  Rubidium »
    Chemical Properties  »
      Rubidium sulphate »

Rubidium sulphate, Rb2SO4

The Rubidium sulphate, Rb2SO4, forms rhombic crystals isomorphous with those of potassium sulphate, melting at 1074° C., the density at 20° C. being 3.6113, and at 60° C. 3.5943. It exists in two modifications, the transition-point being 657° C. The heat of formation from the elements is 344.68 Cal., and the heat of solution -6.66 Cal. at 15° C. The solubility is given in the appended table:

Solubility of Rubidium Sulphate

Temperature, °C.0102030405060708090100
Grams of Rb2SO4 per 100 g. of water36.442.648.253.558.563.167.471.475.078.781.8


The boiling-point of the saturated solution in contact with excess of sulphate is 103.5° C. at 760 mm. pressure. With aluminium and ferric sulphates it forms well-crystallized alums. It exhibits radioactivity.

Last articles

Zn in 7L0B
Zn in 7KZZ
Zn in 7KZL
Zn in 7L3O
Zn in 7L52
Zn in 7L6T
Zn in 7KZ7
Zn in 7L6R
Zn in 7KKM
Zn in 7KKQ
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy