Deaning

SHINSKEY Feedback Controllers for the Process Industries SHUGAR, DEAN The Chemist s Ready Reference Handbook SHUGAR, BALLINGER The Chemical Technicians Ready Reference Handbook... 

Viscosity can be expressed as a function of reduced density to which the viscosity of the ideal gas must by added. We will use the formulation proposed by Dean and Stiel in 1965 ... 

When the reduced density is low, the Dean and Stiel (1965) relationship extended to mixtures can be used to determine the viscosity ... 

The Dean and Stiei (1965) method is based on the principle of corresponding states ... 

Venkatesh P K, Dean A M, Cohen M H and Carr R W 1999 Master equation analysis of intermolecular energy transfer in multiple-well, multiple-channel unimolecular reactions. II. Numerical methods and application to the mechanism of the C. + O2 reaction J. Chem. Phys. Ill 8313... 

Morrison S R 1980 Electrochemistry at Semiconductor and Oxidized Metal Electrodes (New York Plenum) Dean M FI and Slimming U 1987 J. Electroanal. Chem. 228 135 Boehni FI 1987 Langmuir 3 924... 

Dean S Wand Rhea E C (eds) 1982 Atmosphehc Corrosion of Mefa/s (Philadelphia, PA ASTM)... 

Dean P M (Editor) 1995. Molecular Similarity in Drug Design. London, Blackie Academic and Professional. 

This is essentially a Dean and Stark tube (employed for determinations of moisture) but uncalibrated the capacity of this receiver is 7-5-10 ml. A tube calibrated in 0 -1 ml. may, of course, be employed, but for large classes the cheaper uncalibrated tube possesses obvious advantages. 

Place a mixture of 53 g. of A.R. lactic acid (85-88 per cent, acid), 75 g. (85-5 ml.) of commercial anhydrous isopropyl alcohol, 300 ml. of benzene and 20 g. of Zeo-Karb 225/H (1) in a 700 ml. bolt-head flask, equipped with an automatic water separator (e.g., a large modified Dean and Stark apparatus with a stopcock at the lower end, see Fig. Ill, 126, 1) carrying an efficient reflux condenser at its upper end, and a mercury-sealed stirrer (alternatively, the hquid-sealed stirrer shown in Fig. 11,7,11, c. may be used). Reflux the mixture, with stirring, on a steam bath for 5 hours or until water no longer collects in appreciable amount in the water separator run off the water from time to time. Filter off the resin at the pump and wash it with two 25 ml. portions of benzene. Shake the combined filtrate and washings with about 5 g. of precipit-ated calcium... 

Ethyl bromoacetate (1). Fit a large modified Dean and Stark apparatus provided with a stopcock at the lower end (a convenient size is shown in Fig. Ill, 126, 1) to the 1-htre flask containing the crude bromoacetic acid of the previous preparation and attach a double surface condenser to the upper end. Mix the acid with 155 ml. of absolute ethyl alcohol, 240 ml. of sodium-dried benzene and 1 ml. of concentrated sulphuric acid. Heat the flask on a water bath water, benzene and alcohol will collect in the special apparatus and separate into two layers, the lower layer consisting of approximately 50 per cent, alcohol. Run ofi the lower layer (ca. 75 ml.), which includes all the water formed in the... 

Source L. Meites, ed., Handbook of Analytical Chemistry, McGraw-Hill, New York, 1963. J. A. Dean, ed.. Analytical... 

From J. A. Dean and T. C. Rains, Standard Solutions for Flame Spectrometry, in Flame Emission and Atomic Absorption Spectrometry, J. A. Dean and T. C. Rains (Eds.), Vol. 2, Chap. 13, Marcel Dekker, New York, 1971. 

Source All values from Dean, J. A. Analytical Chemistry Handbook. McGraw-Hill New York, 1995. 

Dean, R. (1997) Atomic Absorption and Plasma Spectroscopy, 2nd edition, John Wiley, Chichester. 

For reviews on furan chemistry see References 1, 4—7. The monograph by Dunlop and Peters (1), pubHshed in 1953 remains as the most comprehensive review of furan chemistry available. Unfortunately, it has never been revised, has been out of print for many years, and is not readily available. An excellent, review by Dean (7) covers advances in furan chemistry up through about 1982. 

A procedure using 48% HBr with a Dean-Stark water trap gives good yields of 4-bromobutanol [33036-62-3] free of diol and dibromo compound... 

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