18909-69-8

Basic information

• Product Name: CAESIUM TETRAFLUOROBORATE
• Synonyms: CAESIUM TETRAFLUOROBORATE;CESIUM FLUOROBORATE;cesium tetrafluoroborate
• CAS NO: 18909-69-8
• Molecular Formula: BF₄*Cs
• Molecular Weight: 219.71
• Mol File: 18909-69-8.mol
• Article Data: 9

Chemical Properties

• Melting Point: decomposes at 555℃ [KIR78]
• Appearance: /
• Density: 3.200
• Water Solubility: 1.6g/100mL H2O (17°C), 30g/100mL H2O (100°C) [KIR78]
• CAS DataBase Reference: CAESIUM TETRAFLUOROBORATE(CAS DataBase Reference)
• NIST Chemistry Reference: CAESIUM TETRAFLUOROBORATE(18909-69-8)
• EPA Substance Registry System: CAESIUM TETRAFLUOROBORATE(18909-69-8)

Safety Data

• Hazard Codes: Xi
• Hazardous Substances Data: 18909-69-8(Hazardous Substances Data)

Usage

Chemical Properties

white; ortho-rhomb below 140°C, a=0.7647 nm, b=0.9675nm, c=0.5885 nm; cub above 140°C [KIR78]

Upstream product

• 69525-31-1 nitrosylchloroborate 
• 15690-63-8 cesium chloride 
• 7637-07-2 boron trifluoride 
• 13400-13-0 cesium fluoride 
• 13709-36-9 xenon difluoride 
• 534-17-8 caesium carbonate 
• 7664-39-3 hydrogen fluoride 
• 7787-69-1 caesium bromide 
• 7782-41-4 fluorine 

Downstream Products

• 7637-07-2 boron trifluoride 
• 13400-13-0 cesium fluoride 
• 49756-77-6 [XeF₅]⁽¹⁺⁾*[BF₄]^(1-)=[XeF₅][BF₄] 
• 16949-12-5 cesium hexafluoroantimonate 
• 478167-76-9 chlorine pentafluoride 
• 18424-16-3 cesium hexafluoroarsenate 
• 85662-38-0 ClF₆⁽¹⁺⁾*BF₄^(1-)=ClF₆BF₄ 

Relevant articles and documents

A diazenidoborate: Formation and structure of Cs[(CF3)3BN=NCF3]

Cs[(CF3)3BNH2] reacts with CF3NO to form cesium trans-trifluoromethyldiazenido-tris(trifluoromethyl)borate Cs[(CF3)3BN=NCF3] (2), the structure of which has been investigated by single-crystal X-ray diffraction. The diazene nature of the anion is confirmed by the length of the N=N bond, 1.231(6) ?, and the size of the N-N-B angle, 115.5(4)°the B-N bond length being 1.559(7) ?. Compound 2 is hitherto the first diazenidoborate which has been fully characterized.

Synthesis and characterization of the water-soluble, all-inorganic composition, Keggin-type triniobium(V)-substituted SiW9Nb3O407- heteropolyoxoanions with alkali metal countercations (Li+, Na+, K+, and Cs+)

The Keggin-type triniobium(V)-substituted tungstoheteropolyanion, A-β- SiW9Nb3O407-, was synthesized as its hepta alkali-metal salts of Li+, Na+, K+, and Cs+ countercations. These alkali-metal salts were useful for allowing the crystallization of SiW9Nb3O407-, itself, and/or the SiW9Nb3O407--supported organometallic complexes, as well as controlling the water solubility of these complexes. The analytically pure compounds, obtained as homogeneous colorless solids via a stoichiometric reaction of the (Bu4N)6H2Si2W18Nb6O77, (Nb-O-Nb)3-bridged anhydride with the corresponding alkali tetrafluoroborates and then with the alkali hydroxides, were compositionally characterized by complete elemental analyses, TG/DTA and FABMS spectra. They were structurally characterized by FT-IR and solution 183W NMR measurements, as well as solid-state CP/MAS and GHD/MAS 29Si NMR and solution 29Si NMR measurements. The cation-dependent properties of these heteropolytungstates in the solid state were observed in the thermal stabilities, the amounts of hydrated water and adsorbed water, the solubilities in water and in organic solvents, and in the ease of crystallization.

Vapour pressure and standard enthalpy of sublimation of alkali-metal fluoroborates

The temperature dependence of the vapour pressures of solid alkali-metal fluoroborates MBF4 (M = Na, Rb or Cs) were experimentally determined using an improvised transpiration technique. The vapour pressure of NaBF4 could be represen

Fluorinated amino polyhedral borate compounds

This invention provides a compound comprising fluorinated aminoborate monoanion of the formula: [R1R2R3N—BaHbFc]?1??I methods for preparing the same, and uses thereof, where R1, R2, R3, a, b, and c are those defined herein.