n-pentane


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Related to n-pentane: N-heptane

n-pentane

[¦en ′pen‚tān]
(organic chemistry)
CH3(CH2)3CH3 A colorless, flammable, water-insoluble hydrocarbon liquid, freezing at -130°C, boiling at 36°C; soluble in hydrocarbons and ethers; used as a chemical intermediate, solvent, and anesthetic.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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In contrast, both crude fat (-0.71 [less than or equal to] r [less than or equal to] -0.60, p<0.001) and reducing sugar contents (-0.49 [less than or equal to] r [less than or equal to] -0.39, p<0.05) were negatively correlated with several volatile compounds, including propanal, pentanal, hexanal, heptanal, octanal, and n-pentane (Table 6).
Sochet, "The chemistry of pre-ignition of n-pentane and 1-pentene," Combustion and Flame, vol.
1, Methane; 2, ethane; 3, propane; 4, isobutane; 5, n-butane; 6, isopentane; 7, n-pentane; 8, methyl cyclopentane; 9, 2-methylpentane; 10, n-hexane; 11, methyl cyclohexane; 12, 2/3-methylhexane; 13, n-heptane; 14, benzene; 15, n-octane; 16, methylbenzene; 17, n-nonane; 18, [beta]-xylene.
Table 4 shows the DAO yield and quality from both processes when conducted with n-pentane and at 25[degrees] C a dosage of 5wt% of Si[O.sub.2] nanoparticles.
To prepare the sodium pentoxide solution, 2 g of metallic sodium was weighed under a hood and placed in anhydrous n-pentane to remove the surface residues of kerosene.
Therefore, n-pentane was used in this work because this is a liquid with which the vapor buoyancy should be taken into account during the calibration near room temperature.
The eleven products concerned are: dibutyl phthalate, 3.4 dichloroaniline, ethylenediaminetetraacetic acid, methyl acetate, tetrasodium ethylenediaminetetraacetic acid, di-isodecyle phthalate, benzznedicarboxylic acid-1,2, dialkyl esters ramified in C9-11, rich in C10, n-pentane and chloracetic acid.
The procedure involves preextraction with XAD-2 resin, elution with tert-butyl methyl ether, hydrolysis with [beta]glucuronidase from Escherichia coli, extraction with n-pentane, and derivatization at 60 [degrees]C for 60 min with a solution containing 1 mL of N-methyl-N-(trimethylsilyl)trifluoroacetamide, 2 [micro]g of [NH.sub.4]I, and 6 [micro]L of 2-mercaptoethanol (3, 4).
Gellert said post-shrinkage (i.e., after conditioning the part for 24 hours after mold release) of test samples of 1.25 lb/[ft.sup.3] apparent density was first studied as a function of blowing agent composition, that is, iso- and n-pentane. This was studied because blowing agent concentration is believed to have the most pronounced effect due to its lowering of the glass transition temperature of the polymer.
The extraction solvents; n-pentane and diethyl ether were purchased from Fisher Scientific (Waltham, MA., USA) and were redistilled using a wire spiral packed double distilling apparatus (Normschliff Geratebau, Wertheim, Germany) before use.
These interactions can provide the adsorption of n-heptane and n-pentane on MWCNT (BuN[H.sub.2])network, which are the weakest interactions between the network and VOCs in this study.