N -Propanol

In the maximum-likelihood method used here, the "true" value of each measured variable is also found in the course of parameter estimation. The differences between these "true" values and the corresponding experimentally measured values are the residuals (also called deviations). When there are many data points, the residuals can be analyzed by standard statistical methods (Draper and Smith, 1966). If, however, there are only a few data points, examination of the residuals for trends, when plotted versus other system variables, may provide valuable information. Often these plots can indicate at a glance excessive experimental error, systematic error, or "lack of fit." Data points which are obviously bad can also be readily detected. If the model is suitable and if there are no systematic errors, such a plot shows the residuals randomly distributed with zero means. This behavior is shown in Figure 3 for the ethyl-acetate-n-propanol data of Murti and Van Winkle (1958), fitted with the van Laar equation. 

Figure 6-3. Residuals for the system ethyl acetate(1)-n-propanol(2) at eooc. Data of Murti and van Winkle, 1958.

N-PROPANOL -I I784E403 3 S836E fr04 -0 5452E 02 2 0549E 02... 

Fig. X-1. Adsorption isotherms for n-octane, n-propanol, and n-butanol on a powdered quartz of specific surface area 0.033 m /g at 30°C. (From Ref. 23.)...

Calculate for n-propanol from its contact ancle on PTFE using y = 19.4 mJ/m for PTFE and (a) including and (b) neglecting Tsl-... 

Alcohols. Methanol, ethanol, n propanol, propan-i-ol.n-butanol, glycol, glycerol, benzyl alcohol, cyclohexanol. 

A mixture of n-heptane, tetrahydrofuran, 2-butanone, and n-propanol elutes in this order when using a polar stationary phase such as Carbowax. The elution order is exactly the opposite when using a nonpolar stationary phase such as polydimethyl siloxane. Explain the order of elution in each case. 

Celanese Corp., Tange Finding Toxicity Test on n-Propanol, Industrial Hygiene Foundation of America, Inc., Pittsburgh, Pa., July 1962. 

Some oxidations in slurry reac tors include cumene with metal oxides, cyclohexene with metal oxides, phenol with CuO, and n-propanol with Pt. 

Water with ethanol, n-propanol and isopropanol, tcrt-butanol, propionic acid, butyric acid, pyridine, methanol with methyl iodide, methyl acetate, chloroform,... 

Trimethylamine hydrochloride [593-81-7] M 95.7, m >280°(dec). Crystd from CHCI3, EtOH or n-propanol, and dried under vacuum. It has also been crystd from benzene/MeOH, MeOH/diethyl ether and dried under vacuum over paraffin wax and H2SO4. Stood over P2O5. It is hygroscopic. 

Tetra-n-propylammonium perruthenate (TPAP, tetrapropyl tetraoxoruthenate) [114615-82-6] M 351.4, m 160"(dec). It is a strong oxidant and may explode on heating. It can be washed with aq n-propanol, then H2O and dried over KOH in a vac. It is stable at room temp but best stored in a refrigerator. It is sol in CH2CI2 and MeCN. [Dengel et al. Transition Met Chem 10 98 1985 Griffith et al. J Chem Soc, Chem Commun 1625 1987.] Polymer supported reagent is available commercially. 

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