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Phases summary table

In summary, the results show that a small variation in the nature (i.e., polarity and functionality) of the diamine or the epoxidized triglyceride oil leads to a big difference in thermoset morphology in terms of particle-size distribution (Table V) and phase inversion (Table VI). In addition to the nature of the diamines and the oils, other factors, such as their reactivity, are expected to influence the phase-separation process. Although we do not have data, a small difference in the cure rates of the DDM formulations at 75 °C and the DDS formulations at 150 °C might affect both the particle-size distribution and phase inversion. [Pg.116]

As a summary. Table 3.13 lists the features of the main groups of commercially available chiral stationary phases used for preparative chromatography. [Pg.93]

In summary. Table 6.5 contains a list of selected block copolymers containing either two or three blocks also shown are the number of crystalline phases encountered. Although we have chosen to discuss selected systems, Table 6.5 shows that, in fact, many block copolymer pairs have been synthesized. [Pg.210]

Table 5 FTS in slurry phase - Summary of published studies... [Pg.983]

In summary, Table 1 shows that for process analysis, Raman spectroscopy offers the user a unique combination of the information content of MIR and the convenience of sampling of NIR. In view of the complementary nature of both infrared and Raman for the study of molecular vibrations and vibration-rotation (for vapor- and gas-phase analysis), it is possible for Raman and infrared spectroscopies to be applied to similar problems. [Pg.926]

The format for the flow summary table is given in Chapter 1. Each of the conditions (temperature, pressure, flowrate, composition, and phase) should be estimated early in the flowsheet development. All are needed to get preliminary costs, for example. Even estimates based on perfect separations can provide sufficient data to estimate the cost of a recycle versus the value of burning the impure, unreacted feed material as a fuel. [Pg.400]

Thermodynamic properties of alloys containing one or more actinide elements have been critically assessed by Chiotti et al. [18]. This latter monograph includes phase diagrams, structures, and thermodynamic properties, and is not included in the summary tables of this chapter. [Pg.407]

Volume IV/8C summarizes most of the observed values of densities of unsaturated aliphatic hydrocarbons which include normal and branched alkenes, alkadienes, alkynes, and miscellaneous compounds such as alkatrienes and compounds with double and triple bonds in the crystal and liquid phases that have been reported in the world s scientific hterature. The values Usted have been extracted from the TRC Source Database. These data have been collected by the Thermodynamics Research Center over a period of years and used as a basis for density values listed in the TRC Thermodynamic Tables -Hydrocarbons. An additional literature search was made to locate other data and bring the collection np to date. It is believed that this compilation includes at least 90% of the pertinent data reported in the literature. The usual experimental conditions are in contact with air at one atmosphere below the normal boiling point of the hydrocarbon, and in equilibrium with the vapor phase above the normal boiling point. In the summary tables, temperatures are reported on the Kelvin scale. These were obtained by adding 273.15 to temperatures originally given on the Celsius scale. [Pg.5]

Outcomes of the study should be recorded on the Hazard Study 2 Summary Table . The summary table will be developed during hazard study 2 and subsequent studies to provide a concise overview of the hazard control measures. This information should form the basis for phases 3 and 4 of the safety life cycle records for the project. [Pg.95]

There are two problems in the manufacture of PS removal of the heat of polymeriza tion (ca 700 kj /kg (300 Btu/lb)) of styrene polymerized and the simultaneous handling of a partially converted polymer symp with a viscosity of ca 10 mPa(=cP). The latter problem strongly aggravates the former. A wide variety of solutions to these problems have been reported for the four mechanisms described earlier, ie, free radical, anionic, cationic, and Ziegler, several processes can be used. Table 6 summarizes the processes which have been used to implement each mechanism for Hquid-phase systems. Free-radical polymerization of styrenic systems, primarily in solution, is of principal commercial interest. Details of suspension processes, which are declining in importance, are available (208,209), as are descriptions of emulsion processes (210) and summaries of the historical development of styrene polymerization processes (208,211,212). [Pg.521]

A study on the thermodynamic properties of the three SO phases is given in Reference 30. Table 1 presents a summary of the thermodynamic properties of pure sulfur trioxide. A signiftcandy lower value has been reported for the heat of fusion of y-SO, 24.05 kj /kg (5.75 kcal/kg) (41) than that in Table 1, as have slightly different critical temperature, pressure, and density values (32). [Pg.175]

A summary of the data for the Zorbax column obtained by Alhedai et al. [11] is shown in Table 2. It is seen that the distribution of the various chromatographically important volumes within a column is neither simple nor obvious. It would seem that about 70% of the column volume is occupied by mobile phase but only about 50% of that mobile phase is actually moving. [Pg.44]

Applications of carbon adsorption go far beyond conventional water treatment applications which we will discuss in a general sense shortly. Table 8 provides a summary of the key applications of carbon adsorption systems for liquid phase applications. [Pg.415]

A summary of typical experimental conditions used with TSK-PW columns for nonionic polymers is described in Table 20.3. A common mobile phase is an aqueous solution of 0.05 N sodium nitrate. A salt solution of sodium nitrate is a good choice because it is not as corrosive as a solution of sodium chloride. For the descriptions and examples that follow, a bank of either five or six TSK-PW columns in series (G1000-G5000 or G1000-G6000) was used for the aqueous SEC work. These configurations allow for molecular mass characterization from less than 1,000 Da to 1,000,000 Da or greater. [Pg.562]

Scientific (Northbrook, IL) contain a silica support with a -y-glycidoxypropylsi-lane-bonded phase to minimize interaction with anionic and neutral polymers. The columns come in five different pore sizes ranging from 100 to 4000 A. The packing material has a diameter from 5 to 10 /cm and yields in excess of 10,000 plate counts. With a rigid silica packing material, the columns can withstand high pressure (maximum of 3000 psi) and can be used under a variety of salt and/or buffered conditions. A mobile phase above pH 8, however, will dissolve the silica support of the column (21). A summary of the experimental conditions used for Synchropak columns is described in Table 20.8. [Pg.572]

Mourier s report was quickly followed by successful enantiomeric resolutions on stationary phases bearing other types of chiral selectors, including native and deriva-tized cyclodextrins and derivatized polysaccharides. Many chiral compounds of pharmaceutical interest have now been resolved by packed column SFC, including antimalarials, (3-blockers, and antivirals. A summary is provided in Table 12-2. Most of the applications have utilized modified CO, as the eluent. [Pg.303]

Table 20-6 provides a summary of the chemical species and processes involved in the metallurgy of many transition metals. The following survey of several metals provides further examples of the four phases of metallurgy. [Pg.1466]

When pushed to the limit by overriding human health concerns, residue chemists have achieved detection limits of Ippt (Ingkg ) or even into the low ppqr (1 pg kg ) range. An example at the 1 ppt level is provided by methods for 2,3,7,8-tetrachlorodibenzodioxin (TCDD) in milk and TCDD in adipose tissue. Eor relatively clean matrices such as water and air, preconcentration on solid-phase adsorbents followed by GC or gas chromatography/mass spectrometry (GC/MS) can provide detection limits of 1 ng m and less for air (examples in Majewski and Capel ) and 1 ngL and less for water (examples in Larson et A summary of units of weight and concentration used to express residue data is given in Table 1. [Pg.4]


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See also in sourсe #XX -- [ Pg.967 , Pg.968 , Pg.969 ]




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