| Identification | More | [Name]
RUBIDIUM ACETATE | [CAS]
563-67-7 | [Synonyms]
ACETIC ACID, RUBIDIUM SALT
RUBIDIUM ACETATE
Rubidiumacetatewhitextl
RUBIDIUM ACETATE, 99.8+%
RUBIDIUM ACETATE 98%
RUBIDIUM ACETATE, 99.8% (METALS BASIS)
RUBIDIUM ACETATE 99% (METALS BASIS)
RUBIDIUM ACETATE, 99.999%
Rubidiumacetate(99%-Rb)
acetic acid, rubidium salt rubidium acetate
Rubidium acetate, Puratronic, 99.975% (metals basis) | [EINECS(EC#)]
209-255-4 | [Molecular Formula]
C2H3O2Rb | [MDL Number]
MFCD00013058 | [Molecular Weight]
144.51 | [MOL File]
563-67-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [Melting point ]
246°C (dec.) | [Boiling point ]
246°C | [solubility ]
very soluble in H2O | [form ]
crystal | [color ]
white | [Stability:]
Stable. Moisture sensitive. Incompatible with strong oxidizing agents. | [Water Solubility ]
Slightly soluble in water. | [Hydrolytic Sensitivity]
0: forms stable aqueous solutions | [Sensitive ]
Hygroscopic | [InChI]
InChI=1S/C2H4O2.Rb/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1 | [InChIKey]
FOGKDYADEBOSPL-UHFFFAOYSA-M | [SMILES]
C([O-])(=O)C.[Rb+] | [CAS DataBase Reference]
563-67-7(CAS DataBase Reference) | [EPA Substance Registry System]
Acetic acid, rubidium salt (563-67-7) |
| Hazard Information | Back Directory | [Chemical Properties]
white powder | [Uses]
Rubidium acetate has been reported to modify the acid/base character of the catalyst supports like silica, alumina, and titania. It can be used in the preparation of nanosized rubidium ferrite, and as a promoter on the palladium-catalyzed synthesis of vinyl acetate in heterogeneous gas reaction. It is used in medical and in research laboratories. | [Structure and conformation]
Rubidium acetate (RbOAc) has two polymorphic crystal structures. A phase transition occurs at approximately 500 K, with the high-temperature phase being orthorhombic (Pmmn) and the low-temperature phase monoclinic (P2₁/m). Six oxygen atoms surround the Rb⁺ ion (one in a bidentate coordination mode and four in monodentate bridging modes), forming a polymeric bilayer structure. Both acid salts are obtained simultaneously during synthesis.
Comparison of sodium, potassium, and rubidium acetates: Sodium, potassium, and rubidium acetates all exhibit layered structures (β-NaOAc represents the sodium salt). As the cation radius increases, the metal–oxygen distance increases, the interlayer spacing decreases, and hygroscopicity increases (NaOAc is the least hygroscopic, whereas RbOAc deliquesces immediately). The phase-transition temperature increases with increasing cation radius (Na: 259 K; K: 423 K; Rb: 498 K), whereas the order of the melting points is reversed. |
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