Title: Aluminum Rubidium Sulfate
CAS Registry Number: 13530-57-9
Molecular Formula: AlO8RbS2
Molecular Weight: 304.57
Percent Composition: Al 8.86%, O 42.02%, Rb 28.06%, S 21.06%
Line Formula: RbAl(SO4)2
Literature References: Prepn: Gmelins, Aluminum (8th ed) 35B, p 525-527 (1934). Crystal structure of dodecahydrate: Larson, Cromer, Acta Crystallogr. 22, 793 (1967).
Derivative Type: Dodecahydrate
Additional Names: Rubidium alum
Properties: Crystals, mp reported from 99 to 109°. Sol in water. Practically insol in alc.
Melting point: mp reported from 99 to 109°
Status: This monograph has been retired and is no longer subject to revision or update.