Ethylene glycol density

When dealing with esters of water-soluble, non steam-volatile, poly-hydric alcohols e.g., ethylene glycol or glycerol), the distillate consists of water only (density 1 00). The water soluble, non-volatile alcohol may be isolated by evaporation of the alkahne solution to a thick syrup on a water bath and extraction of the polyhydric alcohol from the salt with cold ethyl alcohol. 

C12-0064. Ethylene glycol, an automobile coolant, has the chemical formula HOCH2 CH2 OH. Calculate the vapor pressure of water above a coolant solution containing 65.0 g of ethylene glycol dissolved in 0.500 L of water (density = 1.00 g/mL), at 100 °C, the boiling point of pure water. 

Fig. 31. Approximation of van der Waals cross-sections of inclusion channels in 1 alcohol clathrates21 (dimensions are in A hatched regions represent O atoms of the host matrix continous solid lines indicate surfaces of apolar attribute) (a) 1 MeOH (1 2) (approximately parallel to the 0(I -Cul vectors, cf. Fig. 17a) (b) 1 2-PrOH (1 2) (orientation as before) (c) 1 2-BuOH (1 1) (through a center of symmetry at 1,1/2,1/2, cf. Fig. 30c non-zero electron density contours) (d) 1 ethylene glycol (1 1) (in the plane of the C—C single bonds of a guest molecule, indicated by projected stick models non-zero electron density contours)...

The reason that OH does not attack the u-carbon in 63, in contrast to the reaction in Eq. (17), would be due to the stronger electron donation by the /3-carbon in 63, which increases the electron density at the a-carbon atom. Addition of ethylene glycol vinyl ether to the p-toluenesulfonate salt of 64 in CDC13 catalytically yields 2-methyl-1,3-dioxolane (Eq. (18)). The reaction proceeds almost instantaneously, and a 50-fold equivalent of the substrate is completely converted to 2-methyl-1,3-dioxolane, which was confirmed by -NMR. After the reaction, the Pt(III) dimer complex without alkyl ligand is left in the solution, which is still capable of catalysis. The reaction is shown as Eq. (18). 

The growth rates of anodic oxides depend on electrolyte composition and anodization conditions. The oxide thickness is reported to increase linearly with the applied bias at a rate of 0.5-0.6 nm V-1 for current densities in excess of 1 mA cnT2 and ethylene glycol-based electrolytes of a low water content [Da2, Ja2, Crl, Mel2] (for D in nm and V in V) ... 

TOA were determined, in the supernatant prepared as described by Hissett et al (25), by the method of Montgomery et al (26). The organic acids were esterified with acidified ethylene glycol. The esters were then reacted with hydroxylamine and the hydroxamic acids thus formed were converted to their ferric complexes and their concentrations were determined by optical density measurements at 500u. 

Tse, G., Orbey, H., and Sandler, S.I. Infinite dilution activity coefficients and Henry s law coefficients of some priority water pollutants determined by a relative gas chromatographic method, Environ. Sci Tecbnol, 25(10) 2017-2022, 1992. Tsierkezos, N.G., Kelarakis, A.E., and Palaiologou, M.M. Densities, viscosities, refractive indices, and surface tensions of dimethyl sulfoxide + butyl acetate mixtures at (293.15, 303.15, and 313.15) K, /. Chem. Eng. Data, 45(2) 395-398, 2000. Tsierkezos, N.G. and Molinou, I.E. Densities and viscosities of ethylene glycol mixtures at 293.15 K, /. Chem. Eng. Data, 44(5) 955-958, 1999. 

AN, ammonium nitrate DMNB, 2,3-dimethyl-2,3-dinitrobutane 2,4-DNT EGDN, ethylene glycol dinitrate HMX, C4H8N8O8 NG, nitroglycerin NM PETN, pentaerythritol tetranitrate RDX, C3H6N6O6 TATP, triacetone triperoxide TNT, trinitrotoluene UN, urea nitrate TMD, theoretical maximum density. 

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