Materials used include ASTM Standard Reference Blacks (SRB), i.e., A2, B2, C, D, E and F; carbon black samples of different grades (N134, N220, N330, N326, N339, N550, N660 and new generation carbon blacks); non-ionic surfactant (Nonidet P40 [LD] and Triton X-100 [DCP]); ethanol LR grade;
dodecane; and demineralized water.
The main components of the hexane extract were 9-octadecenoic acid([omega]-9), 9, 12- octadecadienoic acid (linoleic acid or [omega]- 6), hexadecanoic acid, (palmitic acid), 1,2-benzenedicarboxylic acid diisooctyl,
dodecane and [gamma]- linolenic acid.
While chain alkanes (such as branched octane,
dodecane, and hexadecane) have previously been derived from cellulose for use in jet fuel, the researchers believe this is the first study to produce more complex polycycloalkane compounds that can be used as high-density aviation fuel.
(4)
Dodecane (n[C.sub.12][H.sub.26]) decomposition reactions to [C.sub.12][H.sub.25] are important at both low and moderate temperatures and it is due to the low activation energy of n-dodecane decomposition to [C.sub.12][H.sub.25] isomers.
Alginate, also a carbohydrate, showed consistently small amounts of undecane and
dodecane released upon degradation (Fig.
Effective flotation of lignite using a mixture of
dodecane and 4-dodecyl-phenol (ddp) as a collector.
Of the 3 chemicals that were classified as non-irritants in the Draize test, only
dodecane was classified correctly in all 3 test laboratories.
The 2% PAHs and crude oil utilization by the bacterial isolate using Bacto Bushnell Hass broth was studied using decanol, hexadecane, toluene,
dodecane, engine oil, benzene, octane, oleic acid, and naphthalene as sole carbon source and checked for utilization.
Nonetheless, the authors demonstrated detection of 1-octyne within
dodecane solvent at [lambda] = 1532nm with a minimal detectable absorption of 0.033 [cm.sup.-1].
Category Main components Aromatic hydrocarbons Ethylbenzene, 1,3-dimethyl benzene, 1-methylene lH-indene, butylated hydroxy toluene, 1-methylnaphthalene, 2-methylnaphthalene Alkanes Undecane,
dodecane, tridecane, tetradecane, pentadecane, hexadecane, 2,6,10-trimethyl dodecyl, 4-(prop-2 loxypropangl)octane, 2,6-dimethyl decane Alkenes 2-Propenylidene cyclobutene, cedrene, Seychelles alkene Aldehydes and ketones Hexanal, nonanal, benzaldehyde, acetophenone, undecanal Esters Butyl butyrate, 3-methyl heptanol acetate, 2 acrylic acid 2 ethylhexyl ester, oxalic acid acrylate Others TV-butyl ether