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Between 2.3 and 17 °C, tungsten hexafluoride condenses into a colorless liquid having the density of 3.44 g/cm 3 at 15 °C. [7] At 2.3 °C it freezes into a white solid having a cubic crystalline structure, the lattice constant of 628 pm and calculated density 3.99 g/cm 3.
Boiling liquid oxygen. This is a list of gases at standard conditions, ... Tungsten hexafluoride: WF 6: 17.1 1.9 294 7783-82-6 1-Chloro-1,2,2-trifluoroethane: CHClFCHF 2:
Tungsten hexafluoride (tungsten(VI) fluoride) This page was last edited on 18 July 2023, at ...
ref T c (K) T c (°C) P c (MPa) P c (other) V c (cm 3 /mol) ρ c (g/cm 3) ; 1 H hydrogen; use: 32.97: −240.18: 1.293: CRC.a: 32.97: −240.18: 1.293: 65: KAL: 33.2: 1.297: 65.0: SMI: −239.9: 13.2 kgf/cm 2: 0.0310 1 H hydrogen (equilibrium)
Tungsten disilicide layers can be prepared by chemical vapor deposition, e.g. using monosilane or dichlorosilane with tungsten hexafluoride as source gases. The deposited film is non-stoichiometric, and requires annealing to convert to more conductive stoichiometric form. Tungsten disilicide is a replacement for earlier tungsten films. [2]
A hexafluoride is a chemical compound with the general formula QX n F 6, QX n F 6 m−, or QX n F 6 m+. Many molecules fit this formula. Many molecules fit this formula. An important hexafluoride is hexafluorosilicic acid (H 2 SiF 6 ), which is a byproduct of the mining of phosphate rock .
Tungsten(VI) oxytetrafluoride can be synthesized by the reaction of fluorine and tungsten trioxide. [4] It can also be obtained by treating tungsten with a mixture of oxygen and fluorine at high temperatures. [1] Partial hydrolysis of tungsten hexafluoride will also produce WOF 4. [9] WF 6 + H 2 O → WOF 4 + 2 HF
David R. Lide (ed), CRC Handbook of Chemistry and Physics, 84th Edition.CRC Press. Boca Raton, Florida, 2003; Section 6, Fluid Properties; Vapor Pressure Uncertainties of several degrees should generally be assumed.