The solvents with the highest extraction capacity are dichloromethane, diethyl ether, n-pentane, n-hexane, or mixtures of any of these. Currently, the choice of solvent depends on the compounds to be extracted and how environmentally friendly it is (Costa Freitas et al., 2012). Table 1. ...
Component 1: Element System: C-H Formula: C 8 H 18 Relative Molar Mass: 114.23 CAS Registry Number(s): 540-84-1 Substance Name(s): 2,2,4-trimethylpentane; Pentane, 2,2,4-trimethyl-; 2,4,4-Trimethylpentane; iso-Octane; Isobutyltrimethylmethane; Isooctane; 2,2,4-Trimethylpentan; 2,...
Excess molar volumes of the nine binary mixtures: benzene + n-pentane, + n-heptane, + n-octane, + n-dodecane, + n-hexadecane, + cyclopentane, + cycloheptan... TM Letcher - 《Journal of Chemical Thermodynamics》 被引量: 57发表: 1984年 Thermodynamics of binary mixtures containing alkanenit...
Although they have similar molecular masses (73 and 72 u, respectively), the boiling point of 1-butanamine is much higher (78 degrees Celsius) than that of pentane (36 degrees Celsius). Explain why. If the compounds are at the same temperature...
333 The production of N2H4 (24% yield) was also achieved by the acidification of [Fe(Et2PCH2CH2PEt2)2(N2)] with HOTf in pentane at −78°C, when the yield of NH3 was only 4.5%.334 Download: Download high-res image (190KB) Download: Download full-size image Figure 9. Catalytic...
22. The liquid crystalline medium according to claim 10, wherein the saturated, partially unsaturated or fully unsaturated, optionally substituted polycyclic radicals having 5 to 20 cyclic C atoms, one or more of which may be replaced by heteroatoms, are bicyclo[1.1.1]pentane-1,3-diyl, bicyclo...
Sample preparation. First, flours (150–200 mg) were defatted with pentane/ethanol (95/5, v/v; 2 × 2.0 mL)40. The gliadin fractions from the different defatted flours were extracted as described above30. The gliadin fractions were dried by centrifuging under reduced ...
After distillation, 457 g (91.5% yield) of the dimethyl ester of 2,2,3,3,4,4-hexafluoropentane-1,5-dioic acid was obtained (b.p. 66°-70° C. at 14 torr). The dimethyl ester can be reduced with lithium aluminum hydride to give a hydroxy-terminated compound with a melt point of...
Preferred materials include 1,3-bis(methylamine)-cyclohexane (pKa=10 to 10.5), 1,3 propane diamine (pK1=10.5; pK2=8.8), 1,6 hexane diamine (pK1=11; pK2=10), 1,3 pentane diamine (DYTEK EPC)) (pK1=10.5; pK2=8.9), 2-methyl 1,5 pentane diamine (DYTEK AC)) (pK1=11.2; pK2...
Different fuels including propane (liquid), n-butane (liquid), n-pentane, n-hexane, toluene, jet-A and a blend of alkanes/alkenes centered on C9 were tested. All the fuels, with the exception of n-butane, showed very similar characteristics [20]. According to the conclusion of the ...