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CAS No.: | 13470-13-8 |
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Name: | TUNGSTEN TETRACHLORIDE |
Article Data: | 33 |
Molecular Structure: | |
Formula: | Cl4W |
Molecular Weight: | 325.662 |
Synonyms: | Tungstenchloride (WCl4) (6CI,7CI,8CI); Tetrachlorotungsten; Tungsten tetrachloride;Tungstenyl tetrachloride |
Density: | 4,624 g/cm3 |
Melting Point: | decomposes [CRC10] |
Boiling Point: | °Cat760mmHg |
Flash Point: | °C |
Appearance: | Black Conforms to Requirement |
Hazard Symbols: | C |
Risk Codes: | R34 |
Safety: | S26-27-28-36/37/39-45 |
Transport Information: | UN 3260 8 |
PSA: | 0.00000 |
LogP: | 2.75800 |
Conditions | Yield |
---|---|
strong HCl; | 100% |
strong HCl; | 100% |
tungsten(VI) chloride
tungsten(IV) chloride
Conditions | Yield |
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With Sn In 1,2-dichloro-ethane byproducts: SnCl4; absence of air and moisture; stirring with Sn-powder at room temp. for 17 h, then at 80-90°C for 2 d; centrifugation, washing (CH2Cl2), drying (vac., room temp.); elem. anal.; | 98% |
With Sb In neat (no solvent) byproducts: SbCl3, WOCl4, WCl5; absence of air and moisture; sealed evacuated glass tube, 75-80°C(12 h), 105°C (12 h), 130°C (12 h); distn. off of byproducts (130°C, 1d; then 160°C, 1 d; then215°C, 1 d); elem. anal.; | 97% |
With red phosphorus In neat (no solvent) byproducts: PCl3, WOCl4, WCl5; absence of air and moisture; sealed evacuated glass tube, slow heating to 200°C (over 12 h), then to 300°C (over further 12 h); sublimation off of byproducts (230-240°C, 1 d, trap at liquid N2-temp.; further byproduct: POCl3); elem. anal.; | 94% |
Conditions | Yield |
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In neat (no solvent) byproducts: PCl3; WCl6 and red P (1:1.34) mixed (Ar), sealed (vac.) in silica tube, heatedat 500°C for 24 h; sublimated, XRD; | A 95% B 5% |
Conditions | Yield |
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In 1,2-dichloro-ethane at 20℃; for 17h; | 93% |
hydrogenchloride
aluminium trichloride
tungsten(VI) chloride
aluminium
sodium chloride
B
tungsten(IV) chloride
Conditions | Yield |
---|---|
In neat (no solvent, solid phase) other Radiation; sealing WCl6, Al, AlCl3 and NaCl and Mo into SiO2 ampoule (1E-2 Torr N2), microwave oven (200 W, 60 min, cooling to room temp., further irradiation at 200 W for 60 min), opening, dissoln. in hot concd. HCl; filtration (Celite), crystn. on cooling, washing (cold. concd. HCl, Et2O), drying (overnight); elem. anal.; | A 48% B n/a |
tungsten(VI) chloride
tungsten
A
tungsten(VI) oxychloride
C
tungsten(IV) chloride
Conditions | Yield |
---|---|
reaction of WCl6 with W at 270-750°C for 14 h under a vacuum; removal of WCl4 and WOCl4 byproducts by sublimation, intermediate (H3O)2W6Cl14*6H2O obtained after recrystn. from boiling HCl and cooling to -10°C; intermediate heated at 450°C under a dynamic vacuum; | A n/a B 25% C n/a |
tetrachloromethane
B
tungsten(VI) chloride
C
tungsten(IV) chloride
D
tungsten dioxydichloride
Conditions | Yield |
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In neat (no solvent) reaction on heating WO2 with CCl4 to 250°C in a closed tube for 8h;; | |
In neat (no solvent) reaction on heating WO2 with CCl4 to 250°C in a closed tube for 8h;; |
Conditions | Yield |
---|---|
In gas Kinetics; Irradiation (UV/VIS); stationary photolysis in a glass cell; flash photolysis in a sealed quartz cell; vac. distn.; |
hydrogen
tungsten(VI) chloride
A
tungsten(V) chloride
B
chlorine
C
tungsten(IV) chloride
Conditions | Yield |
---|---|
In gas Kinetics; byproducts: HCl; Irradiation (UV/VIS); flash photolysis in a sealed quartz cell at 388 K and 403 K; stationaryphotolysis in a sealed glass cell at 140°C; vac. distn.; |
Conditions | Yield |
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In neat (no solvent) sealed ampoule (270-280 °C, 15 h), molar ratio WCl6:Al = 1:1.5; | |
In neat (no solvent, solid phase) reaction in glass ampules at 400°C; |