Reid

More attention has been devoted to the photoreactions of cyclic azoalkanes. Diazirines are of particular importance as elimination of nitrogen leads to the formation of carbenes, a reaction that is increasingly used for the generation of such 

Photochemically generated cyclopropylchlorocarbene exhibits competitive intramolecular and intermolecular chemistry. 

The absolute rate constant for the rearrangement of this carbene 

Cyclopropane derivatives are routinely obtained by photoelimination of nitrogen from the corresponding pyrazolines 1,3-biradicals have been shown to be intermediates in these 

0 ]dodeca-4,9-diene (11) can be rationalized in this way as a formal homo-Cope rearrangement in the biradical (12) 

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The third edition of "Properties of Gases and Liquids" by Reid et al. (1977) lists useful group contribution methods for predicting critical properties. Contributions to the second... 

Values of Rj, probably close to the required accuracy, can be estimated from the parachor, P the parachor can be calculated from a group-contribution method given by Reid et al. The... 

The Reid vapor pressure characterizes the light petroleum products it is measured by a standard test (refer to Chapter 7) which can be easily simulated. 

The two chambers are opened to each other and the apparatus is brought to 37.8°C. The relative pressure resulting is called the Reid vapor pressure . 

The Reid vapor pressure is generally barely different from the true vapor pressure at 37.8°C if the light gas content —methane, ethane, propane, and butane— of the sample is small, which is usually the case with petroleum products. The differences are greater for those products containing large quantities of dissolved gases such as the crude oils shown in Table 4.13. 

Reid vapor pressure, bar Vapor pressure crude oil, bar Vapor pressure gasoline, bar R crude oil R stabilized gasoline... 

Relation between the true vapor pressure at 37.8 C and the Reid vapor pressure. R = True vapor pressure/ Reid" vapor pressure. --------------------------------------------------------------------------------i... 

The criterion retained up to now in the specifications is not the true vapor pressure, but an associated value called the Reid vapor pressure, RVP. The procedure is to measure the relative pressure developed by the vapors from a sample of motor fuel put in a metallic cylinder at a temperature of 37.8°C. The variations characteristic of the standard method are around 15 millibar in repeatability and 25 millibar in reproducibility. 

Reid vapor pressures and flash points of selected crude oils. 

Debutanized gasoline cuts from Arabian Light crude. Reid Vapor Pressure as a function of yield, weight %. Aromatics content as a function of yield, volume %. 

Reid vapor pressure NF EN 12 (M 07-007) ISO 3007 ASTM D 323 Pressure in a sample bomb held at 37.8°C... 

Fundamentais of thermodynamics. Appiications to phase transitions. Primariiy directed at physicists rather than chemists. Reid C E 1990 Chemical Thermodynamics (New York McGraw-Fliii)... 

Reid G C 1976 Ion chemistry of the D-region Advances in Atomic and Moiecuiar Physics ed D R Bates and B Bederson (Orlando, FL Academic)... 

Wynne K, Haran G, Reid G D, Moser 0 0, Dutton P L and Hochstrasser R M 1996 Femtosecond infrared spectroscopy of low-lying excited states in reaction centers of Rhodobacter sphaeroides J. Rhys. Chem. 100 5140-8... 

Higgins D A, Reid P J and Barbara P F 1996 Structure and exciton dynamics in J-aggregates studied by polarization-dependent near-field scanning optical microscopy J. Chem. Phys. 100 1174-80... 

R. C. Reid, J. M. Prausnitz, B.E. Polling, The Properties of Gases and Liquids, 4th edition, McGraw-Hill, New York, 1988. 

Chem.ini or Registry Setup of Force Reid Options... 

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