7488-54-2

Basic information

• Product Name: Rubidium sulfate
• Synonyms: RUBIDIUM SULFATE, 99% (METALS BASIS);RUBIDIUM SULFATE REAGENT;rubidium sulfate, puratronic;Rubidium sulfate, Puratronic(R), 99.975% (metals basis);RUBIDIUM SULFATE, PURE;Rubidium sulfate/ 99.9%;Rubidium Sulphate 99%;Rubidium sulfate 99.8% trace metals basis
• CAS NO: 7488-54-2
• Molecular Formula: O4Rb2S
• Molecular Weight: 267
• EINECS: 231-301-7
• Product Categories: Inorganic Salts;Rubidium Salts;RubidiumMetal and Ceramic Science;Salts;Synthetic Reagents;Hematology and Histology;Hematology StainsSynthetic Reagents;Rubidium;metal sulfate;Chemical Synthesis;Inorganic Salts;Materials Science;Metal and Ceramic Science;Rubidium Salts;Synthetic Reagents
• Mol File: 7488-54-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: 1050 °C
• Boiling Point: 1700 °C
• Appearance: white/crystal
• Density: 3.613 g/mL at 25 °C(lit.)
• Refractive Index: 1.513
• Water Solubility: soluble
• CAS DataBase Reference: Rubidium sulfate(CAS DataBase Reference)
• NIST Chemistry Reference: Rubidium sulfate(7488-54-2)
• EPA Substance Registry System: Rubidium sulfate(7488-54-2)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 2
• RTECS: WS8350000
• TSCA: Yes
• Hazardous Substances Data: 7488-54-2(Hazardous Substances Data)

Usage

Physical Properties

White orthogonal crystal; density 3.6 g/cm3; melts at 1,050°C; very soluble in water, 36 g/100g at 0°C and 82 g/100g at 100°C.

Preparation

Rubidium sulfate can be prepared by neutralization of a solution of rubidium hydroxide or carbonate with sulfuric acid: 2RbOH + H2SO4 → Rb2SO4 + 2H2O Rb2CO3 + H2SO4 →Rb2SO4 + H2O + CO2 Alternatively, Rb sulfate may be obtained by treating a hot solution of rubidium aluminum sulfate (rubidium alum) with ammonia solution. Aluminum hydroxide precipitates. The product mixture is filtered. The filtrate on evaporation crystallizes rubidium sulfate.

Chemical Properties

colorless crystal(s) [MER06] [HAW93]

Uses

Rubidium sulfate is used in hematology stain.

Purification Methods

Crystallise the sulfate from water (1.2mL/g) between 100o and 0o.

InChI:InChI=1/H2O4S.Rb/c1-5(2,3)4;/h(H2,1,2,3,4);