N-Hexane Cyclohexane

Monomethyl paraffins (C10-C15) from monomethyl paraffins, di-isoparaffins, di-isoolefins, aromatics Silicalite-1 Cyclohexane/n- hexane [146,157]... 

Energies, Excess Enthalpies, Excess Volumes, and Isothermal Compressibilities of Cyclohexane + 2,3-Dimethylbutane , J. Client. Thermodyn., 6, 35-41 (1974). J. B. Ott, K. N. Marsh, and R. H. Stokes, Excess Enthalpies, Excess Gibbs Free Energies, and Excess Volumes for (Cyclohexane + n-Hexane), and Excess Gibbs Free Energies and Excess Volumes for (Cyclohexane + Methylcyclohexane) at 298.15 and 308.15 K , J. Chem. Thermodyn., 12, 1139-1148 (1980). 

Therefore, Ache and coworkers studied positron interactions in aqueous and nonpolar detergent systems, i.e., DAP in benzene, cyclohexane, n-hexane, and AOT in benzene. They obtained a rather abrupt drop of the intensity I2 which is a remarkably sensitive indication of critical concentration, as compared with the information obtained from spectroscopic or other standard techniques. The method appears particularly promising regarding CMC determinations in nonpolar surfactant solutions. 

A recent study performed by Mello et al. focuses on a comparison of n-hexane and cyclohexane in the polymerization of BD with the catalyst system NdV/D I BAH/f BuCl. In this study Mello et al. use the pure solvents and mixtures of n-hexane and cyclohexane [423]. Cyclohexane yields BR with a significantly lower molar mass than n-hexane. According to Mello et al. this effect is due to the thermodynamically better solvent quality of cyclohexane. The authors found no strong influence of the cyclohexane/n-hexane ratio neither on catalyst activity nor on microstructure. 

The results in Table II show the effect of adding hexene to thiophene in singleshot experiments. Cyclohexene had a similar effect cyclohexane, n-hexane, and benzene had no effect, though all were shown to adsorb on the catalyst. Thus the effect of adding 3 moles of hexene per mole of thiophene was to lower thiophene conversion by 21% 1 mole per mole of thiophene cut conversion by only 4.5%, so that assuming that butene and hexene behave similarly, the 1 mole of butene formed from each mole of thiophene probably would not retard the reaction appreciably. 

Chemisorption of cyclohexane, n-hexane, and 2,3-dimethylbutane on small platinum clusters has been reported to be quite facile. These species also readily exhibit sequential reactions. Even the platinum atom forms a di-addition product with cyclohexane. The first report of this reaction utilized high-fluence 6.42-eV photons to ionize the reaction products. The resultant mass spectra showed extensive hydrogen loss, and a C H ratio near 1 was found for most product ions (Fig. 2 in Trevor et al. ). As discussed above, extensive hydrogen loss may be due to laser cooking during ionization. More recent experiments, which utilized low-fluence 7.87-eV ionizing pho-... 

The high-temperature solution process is state-of-the-art for the production of ethylene homopolymers as well as ethylene/1-olefin copolymers with a wide range of average molecular mass and copolymer composition [15]. This process is performed in a CSTR or in a cascade of two reactors, like the low-temperature process. Only the downstream equipment is different. The diluent is an aliphatic hydrocarbon such as cyclohexane, n-hexane, or a Cg-Cio alkane fraction. Homogeneous catalyst and co-catalyst are fed into the polymerization reactor mixed with solvent. Ethylene, hydrogen to regulate average molecular mass, and the comonomer are injected either as a gas or as a liquid. Temperature can be con-... 

The addition of HOOH to 2 1 pyridine/acetic acid solutions that contain FeIRPA)2 (PA = picolinate ion) and cyclohexane (C-C6H12) results in the catalyzed transformation of C-C6H12 to cyclohexanone [c-CgHioCO)]. Table 4-5 summarizes the conversion efficiencies and product yields for the oxygenation by the HOOH/Fe(PA)2 combination of several organic substrates (hydrocarbons with methylenic carbons, acetylenes, and aryl olefins). Catalyst turnovers (moles of product per mole of catalyst) are also tabulated. The relative reaction efficiencies for cyclohexane, n-hexane, cyclohexene, and 1,4-cyclohexadiene are roughly... 

Solutes that Produce no New Intermediates. Methanol, ethyl alcohol, cyclohexene, cyclohexane, n-hexane, 3-methylpentane, and biacetyl also remove the absorption spectrum attributed to (CCV), but no additional new spectra are observed from 3500 to 6000 A. Millimolar concentrations of these solutes remove the long-lived portion of (CC14+) while 0.1 M of all solutes apart from cyclohexane completely removes the short and long-lived (CC14+) cyclohexane O.lAf increases the decay rate of the positive ion. Adding 10 mAf methanol and 20 mAf n-hexane decreases the ti/2... 

Pale yellow crystals, mp 60.5°. So) in benzene, cyclohexane, n -hexane, ether. theRAP cat Hepatoprotectant. 

Given that the validity of formula (16) and the premises of the spin-coherence methods are not obvious, it was important to determine fs for secondary ion pairs in a direct way. The time dependence of the I A and 3 A yields in 0.1 M solutions of biphenyl and napdithalene in cyclohexane, n-hexane, and isooctane was measured [118]. In these solutions, reactions (19), (20), and (21) was over in a fraction of a nanosecond, and reaction (23) was the only source of A and A states between 1 ns and 70 ns. From the derivatives of the G-values of 3A and A, the time-dependent probability ft=l-fs of triplet... 

P-19 - Isomerization of cyclohexane, n-hexane and their mixtures on zeolite catalyst... 

Test Systems.—Cyclohexane + n-hexane at 298.15 K has recently been recommended by the I.U.P.A.C. Commission on Thermodynamics and Thermochemistry. Results for this system obtained in five different laboratories with batch, dilution, and flow calorimeters show no systematic discrepancies. - ... 

Properties Colorless oily liq., char, fatty odor cryst. when cooled sol. in alcohol, chloroform, ether, acetone, benzene, cyclohexane, n-hexane, oxygenated soivs. pract. Insol. In water m.w. 158.24 dens. 0.907 (20/4 C) m.p, 10-12 C b.p, 252-253 C (756 mm) acid no. 351 flash pt. 129 C ref. index 1.433 (20 C) weakly acidic Toxicology LD50 (oral, mouse) 15 g/kg, (IV, mouse) 224 4.6 mg/kg poison by IV route mod. toxic by ing. strong irritant to skin and eyes inh. of mists may cause mild to mod. irritation to nose/throat ing. of Ig. doses may cause mild irritation, sore throat, abdominal pain, nausea, vomiting TSCA listed Precaution Combustible corrosive... 

SOME PHYSICAL PROPERTIES OF THE TERNARY SYSTEM BENZENE-CYCLOHEXANE-N-HEXANE. 

The second criterion for the selection of a proper organic solvent was its effects on the enzyme activity and stability. Seven organic solvents were tested, chloroform, cyclohexane, n-hexane, n-octane, isooctane, dodecanol, and n-decane, with logP values of 2.0, 3.2, 3.5, 4.5, 4.5, 5.0, and 5.6, respectively. The logP of a solvent, the logarithm of the partition coefficient of the solvent in a standard mixture of 1-octanol and water, is a parameter often used for predicting its biocompatibility, and is usually more indicative of the dissolved solvent. 

Ott, J. B. Marsh, K. N. Stokes, R. H. Excess enthalpies, excess Gibbs free energies, and excess volumes for (cyclohexane + n-hexane), and excess Gibbs free energies and excess volumes for (cyclohexane + methylcyclohexane) at 298.15 tmd 308.15 K J. Chem. Themtodyn. 1980,72,1139-1148... 

During the summer 2002 the efficiencies of the miniplant columns and heat losses were verified. The efficiency of the packing used was tested with cyclohexane - n-hexane mixture. Binary composition, pressure and reboiler duty were the adjusted parameters. The amount of the ideal plate per meter was measured to be from 15 to 20, which gives an approximate height of 5 - 6.5 cm for one ideal plate. Heat losses were evaluated for... 

O Connor et al. investigated the partial oxidation of gasoline and gasoline components, such as cyclohexane, n-hexane and isooctane over washceramic monoliths carrying 5 wt.% rhodium supported by y-alumina [248]. The stoichiometric O/C ratio of 1.0 revealed the best results with respect to activity and selectivity. 

Higher hydrocarbons and their derivatives Benzene-N2, cyclohexane, n-hexane, diisodecylphthalate h I... 

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