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Tungsten hexacarbonyl (also called tungsten carbonyl) is an organometallic compound with the formula W(CO) 6. This complex gave rise to the first example of a dihydrogen complex. [2] Like its chromium and molybdenum analogs, this colorless compound is noteworthy as a volatile, air-stable derivative of tungsten in its zero oxidation state.
Values are given in terms of temperature necessary to reach the specified pressure. Valid results within the quoted ranges from most equations are included in the table for comparison. A conversion factor is included into the original first coefficients of the equations to provide the pressure in pascals (CR2: 5.006, SMI: -0.875).
74 W tungsten; use: 806.7 LNG: 806.7 WEL: 800 Zhang et al. 774 75 Re rhenium; use: 704 LNG: 704 WEL: 705 Zhang et al. 707 76 Os osmium; use: 678 LNG: 738 WEL: 630 Zhang et al. 678 77 Ir iridium; use: 564 LNG: 231.8 WEL: 560 Zhang et al. 564 78 Pt platinum; use: 510 LNG: 469 WEL: 490 Zhang et al. 510 79 Au gold; use: 342 CRC: 324 LNG: 324 WEL ...
The crystallinity of the produced tungsten layers can be controlled by altering the WF 6 / H 2 ratio and the substrate temperature: low ratios and temperatures result in (100) oriented tungsten crystallites whereas higher values favor the (111) orientation. Formation of HF is a drawback, as the HF vapor is very aggressive and etches away most ...
This is illustrated in the vapor pressure chart (see right) that shows graphs of the vapor pressures versus temperatures for a variety of liquids. [7] At the normal boiling point of a liquid, the vapor pressure is equal to the standard atmospheric pressure defined as 1 atmosphere, [ 1 ] 760 Torr, 101.325 kPa, or 14.69595 psi.
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)
74 W tungsten; use: 6203 K: 5930 °C: 10706 °F WebEl: 5828 K: 5555 °C: 10031 °F CRC: ... all values refer to the normal boiling point at standard pressure (101.325 ...
A Assuming an altitude of 194 metres above mean sea level (the worldwide median altitude of human habitation), an indoor temperature of 23 °C, a dewpoint of 9 °C (40.85% relative humidity), and 760 mmHg sea level–corrected barometric pressure (molar water vapor content = 1.16%). B Calculated values *Derived data by calculation.