The vapor pressures of the elements have been presented in tabular and graphical form.[3] Figure 6.1 shows the vapor pressures of selected materials as a function of temperature. Note that the slopes of the vapor pressure curves are strongly temperature-dependent (about 10 Torr/100°C for Cd ...
2023 Vapor Pressures of the Chemical Elements More Engineering Resources Battery capacity tester for small and tiny cells Custom design and manufacture of state-of-the-art battery chargers, DC/DC Converters, and power supplies I occasionally need to evaporate some metal or other, or want to know...
Thus the vapor pressures of many refractory metals can be unerringly extrapolated to lower temperatures even though it may be impossible to measure them directly. For this to be practical the thermodynamic data that are available must be accurate. Sign in to download full-size image Figure 3-1...
1.It is found that the main parameters affecting the evaporation rate include the activity coefficients andsaturation vapor pressures of the elements.建立了TiAl合金蒸发和沉积数学模型,采用活度系数体现溶池中不同组元的相互作用,影响组元蒸发速率的因素主要有元素饱和蒸气压和活度系数,计算值与试验值符合良好。
A method for the measurement of evaporation rates and vapor pressures of low volatility compounds was developed and applied to the homologous series of C4-C10 and C12 dicarboxylic acids. Proton-transfer chemical ionization mass spectrometry was used to follow directly the temperature-dependent evaporation...
Vapor pressures of non-aqueous electrolyte solutions. Part 1. Alkali metal salts in methanol Precise vapor pressure data for solutions of NaCl, NaBr, NaI, NaClO 4 , KBr, KI, RbI, and CsI in methanol at 25°C in the concentration range 0.02≤m (mol-... J Barthel,R Neueder,G Lauermann...
To predict atmospheric partitioning of organic compounds between gas and aerosol particle phase based on explicit models for gas phase chemistry, saturation vapor pressures of the compounds need to be estimated. Estimation methods based ... UK Krieger,F Siegrist,C Marcolli,... - 《Atmospheric Measu...
An arc discharge lamp giving a peak intensity in the region 5050-5500 Angstrom has a ceramic (e.g. poly-crystalline alumina) envelope and a filling, in addition to a starter gas, of sodium with at least two of the elements mercury, cadmium and thallium, the filling being generated from ...
The high vapor pressure of some elements requires target preparation methods in which these elements are converted into chemical compounds. These compounds must have low enough vapor pressures in order to withstand the elevated temperatures which are on these targets during ion bombardment. A method ...
For bioalcohol–water solutions the composition of the vapor phase and the partial pressures of the components at the membrane cell inlet were calculated using the nonrandom two-liquid (NRTL) model. Parameters for NRTL modeling were taken from several studies (Gmehling, Onken, & Arlt, 1978; Kog...