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Hydrogen carbonate, 221 table

Table 3 shows results obtained from a five-component, isothermal flash calculation. In this system there are two condensable components (acetone and benzene) and three noncondensable components (hydrogen, carbon monoxide, and methane). Henry s constants for each of the noncondensables were obtained from Equations (18-22) the simplifying assumption for dilute solutions [Equation (17)] was also used for each of the noncondensables. Activity coefficients for both condensable components were calculated with the UNIQUAC equation. For that calculation, all liquid-phase composition variables are on a solute-free basis the only required binary parameters are those for the acetone-benzene system. While no experimental data are available for comparison, the calculated results are probably reliable because all simplifying assumptions are reasonable the... [Pg.61]

Hydroxide ion lies below phenol m Table 1 7 hydrogen carbonate ion lies above phe nol The practical consequence of the reactions shown is that NaOH is a strong enough base to convert phenol to phenoxide ion but NaHCOs is not... [Pg.45]

Table 4 summarizes commercial and precommercial gas separation appHcations (86,87). The first large-scale commercial appHcation of gas separation was the separation of hydrogen from nitrogen ia ammonia purge gas streams. This process, launched ia 1980 by Monsanto, was followed by a number of similar appHcations, such as hydrogen—methane separation ia refinery off-gases and hydrogen—carbon monoxide adjustment ia oxo-chemical synthetic plants. [Pg.85]

It can be summarized from the available data in Table 3 that supported palladium catalysts selectively hydrogenated carbon-carbon double bonds in the presence of the nitrile group in NBR. However, there is no detailed fundamental study on heterogeneous catalytic hydrogenation of nitrile rubber in the literature that can provide an insight into the reaction. The available information is limited since most of the literature is patented. [Pg.559]

Low smoke emission is also often associated with a high carbon hydrogen ratio. Table 18.15 gives some collected data for the limiting oxygen index. [Pg.935]

Next, we take into account the proton-transfer equilibrium involving hydrogen carbonate anion. To do this, we complete a second concentration table, using as initial concentrations those calculated for the first equilibrium ... [Pg.1254]

C. E. Moore, Tables of Spectra of Hydrogen, Carbon, Nitrogen, and Oxygen Atoms and Ions (CRC Press, Boca Raton, 1993). [Pg.326]

Table 14.1 Relative abundances of the stable isotopes of hydrogen, carbon, nitrogen, oxygen and sulfur (Hoefs 1996 Schoeller 1999)... Table 14.1 Relative abundances of the stable isotopes of hydrogen, carbon, nitrogen, oxygen and sulfur (Hoefs 1996 Schoeller 1999)...
Table 19.1. The stable isotopes of hydrogen, carbon, oxygen, and sulfur, and their approximate terrestrial abundances (Wedepohl et al., 1978)... Table 19.1. The stable isotopes of hydrogen, carbon, oxygen, and sulfur, and their approximate terrestrial abundances (Wedepohl et al., 1978)...
For double bond of 2P1-orbital the carbon atom has PE-parameter - (8.5043 eV) - similar to PE-parameter of hydrogen atom (table 1). Therefore one of the freed hydrogen atoms join the double bond C=C available in NADPN with the formation of single bond with carbon atom [9],... [Pg.98]

Another parameter investigated was the usefulness of different substituents other than hydrogen or hydroxyl on the Of-carbon. Table II provides the relative activity of several diphenylmethyl substituted 5-pyrimidines. Clearly, the hydroxyl substituted compound is the most active against bean powdery mildew. [Pg.76]

Once again, each carbon has exactly four bonds. Of course, the triple bond between carbons allows each carbon to bond to only one more atom. In acetylene, the single bond is to hydrogen, but in other alkynes, the single bond is to another carbon. Table 6-3 compares 3 hydrocarbons that contain the same number of carbon atoms. [Pg.62]

The metals known to be active for hydrogenating carbon monoxide to hydrocarbons and alcohols are Fe, Ni, Co and Ru. Rhodium is also receiving considerable attention by many research workers for the production of alcohols. The relative prices of these metals are given in Table I. [Pg.24]

It is apparent from Table IV that trace elements determined by the x-ray fluorescence method are limited to those occurring in whole coals at concentrations of at least a few parts per million. Elements such as selenium, mercury, and antimony, which are generally present in whole coal at levels below 1 ppm, cannot be determined by this method. The major elements in coal, hydrogen, carbon, oxygen, and nitrogen, cannot be determined by x-ray fluorescence, but this should not inhibit the use of the method for trace and minor element determinations. [Pg.81]


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