K-Mass

Biemann, K., Mass Spectrometry Organic Chemical Applications, McGraw-Hill, New York, 1962. 

For weU-defined reaction zones and irreversible, first-order reactions, the relative reaction and transport rates are expressed as the Hatta number, Ha (16). Ha equals (k- / l ) where k- = reaction rate constant, = molecular diffusivity of reactant, and k- = mass-transfer coefficient. Reaction... 

A = effective surface area for heat and mass transfer in m L = latent heat of vaporization at in kj/kg k = mass-transfer coefficient in kg/ (sm kPa) t = mean source temperature for all components of heat transfer in K t = Hquid surface temperature in K p = Hquid vapor pressure at in kPa p = partial pressure of vapor in the gas environment in kPa. It is often useful to express this relationship in terms of dry basis moisture change. For vaporization from a layer of material ... 

FIG. 17-14 Biihhling-hed model of Kunii and Levenspiel. dy = effective hiih-ble diameter, = concentration of A in hiihhle, = concentration of A in cloud, = concentration of A in emulsion, y = volumetric gas flow into or out of hiihhle, ky,- = mass-transfer coefficient between bubble and cloud, and k,. = mass-transfer coefficient between cloud and emulsion. (From Kunii and Leoen-spiel, Fluidization Engineering, Wiley, New York, 1.96.9, and Ktieger, Malahar, Fla., 1977.)... 

K, Mass transfer coefficient g0 Volumetric void fraction of dry... 

K , Mass transfer coefficient for equimolecular eoimterdiffusion kmol s/kg m NM- L- l... 

After dosing methyl radicals and chlorine molecules onto CuaSi samples which were cooled to 180 K, mass spectrometry was used to identify the gas phase reaction products upon heating. The silane products have been identified by monitoring their characteristic ions, which include SiCU" " (m/e=168), CHaSiCla (m/e=148), SiCla" " (m/e=133), (CHa)2SiCl2+ (m/e=128), CHaSiCl2+ (m/e=113), (CHa)2SiCl+ (m/e=93), SKCHala" " (m/e=73). All of these ions are detected. On the other hand, no CHaCl (m/e=53) or SiH4+ (m/e=32) are observed. 

Adachi, K., Mass fragmentographic determination of polymethylbiphenyl in foods contaminated with petroleum products, Bull. Environ. Contain. Toxicol., 26, 737, 1981. (CA95 113485s)... 

Biemann, K. Mass Spectrometry McGraw-Hill New York, 1962 p 130. 

Bieman, K. Mass Spectrometry , Organic Chemical Applications, p. 223. New York McGraw Hill 1962. 

Meyerson, S. Drews, H. Field, E.K. Mass Spectra of Ortho-Substituted Diaryl-methanes. J. Am. Chem. Soc. 1964, 86, 4964-4967. 

Hites, R.A. Biemann, K. Mass Spectrometer-Computer System Particularly Suited for Gas Chromatography of Com-... 

Mackay, D. and Yeun, A.T.K. Mass transfer coefficient correlations for volatilization of organic solutes from water. Environ. Sci Technol, 17(4) 211-217, 1983. 

Mathews, AP Panda, KK Ananthi, S Padmanabhan, K. Mass transfer and oxidation kinetics in an in situ ozone generator. Water Science and Technology, 2004 49, 13-18. 

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