1,4-Di-n-hexyl ethers

Di-n-hexyl ether. Use 50 g. (61 ml.) of n-hexyl alcohol (b.p. 156-157°) and 6 g. (3-5 ml.) of concentrated sulphuric acid, and heat until the temperature rises to 180°. Pour the reaction mixture into water, separate the upper layer, wash it twice with 5 per cent, sodium hydroxide solution, then with water, and dry over anhydrous potassium carbonate. Distil from a 50 ml. Claisen flask, and collect the fractions of b.p. (i) 160-221° (17 g.), and (u) 221-223° (17 g.). Reflux fraction (i) with 4 g. of sodium and distil from the excess of sodium 9 - 5 g. of fairly prure n-hexyl ether, fraction (iii), are thus obtained. Combine fractions (ii) and (iii) and distil from a little sodium collect the pure n-hexyl ether (19 g.) at 221 - 5-223°. [Pg.313]

The liquid-phase dehydration of 1-hexanol and 1-pentanol to di-n-hexyl ether (DNHE) and di-n-pentyl ether (DNPE), respectively, has been studied over H-ZSM-5, H-Beta, H-Y, and other zeolites at 160-200°C and 2.1 MPa. Among zeolites with a similar acid sites concentration, large pore H-Beta and H-Y show higher activity and selectivity to ethers than those with medium pores, although activity of H-ZSM-5 (particularly in 1-pentanol) is also noticeable. Increased Si/Al ratio in H-Y zeolites results in lower conversion of pentanol due to reduced acid site number and in enhanced selectivity to ether. Selectivity to DNPE is always higher than to DNHE... [Pg.361]

CYCLOPENTYLHEPTANE 1-CYCLOHEXYLHEXANE 1-OODECANAL n-DODECANOIC ACID n-DOOECANE DI-n-HEXYL ETHER 1-DOOECANOL... [Pg.48]

Liquid membrane enrichment coupled on-line with ion chromatography. Low molecular mass carboxylic acids in low concentrations in air or soil samples can be determined by ion chromatography coupled on-line to a selective enrichment system consisting of a supported liquid membrane, impregnated with tri- -octylphosphine oxide in di-n-hexyl ether [97-98]. The system allows the determination of these carboxylic acids at micromolar levels in the presence of interfering ions such as nitrite, chloride, sulfate, iron, and aluminum. [Pg.580]

The thermal process has been conducted in hot kerosene/ in w-hexadecane/ in o-dichlorobenzene, in di-n-hexyl ether, and in chlorobenzene. Tetrachlorothiophene has been recommended for similar processes. A low concentration is advantages (<1% was recommended in work that showed kerosene to be the optimal solvent. ) As high a temperature as possible has been recommended. - The process has been conducted with alkyl, nitro, ° bromo, - ° methoxyl, hydroxyl, and even (additional) azido groups... [Pg.167]

Difluorodiphenyl, 612 Di-n-hexyl ether, 313 Di-n-hexyl sulphide, 496,498 Dihydrooinnamic acid see Hydrocin-... [Pg.1173]

C12H26O DI-n-HEXYL ETHER experimental/estimate estimate... [Pg.391]

C12H260 DI-n-HEXYL ETHER -18.114 1.2587E+00 -8.1053E-04 2.6448E-07... [Pg.379]

Donor solution 0.1 M sodium hydroxide solution with 20% sodium chloride and 2% acetone organic phase di-n-hexyl ether acceptor solution 0.5 M hydrochloric acid and 500 mM 18-crown-6 ether extraction time of 30 min stirring at 1000 rpm... [Pg.86]

In SLM extraction, the most widely applied type of three-phase membrane extraction, the membrane consists of an organic solvent, which is held by capillary forces in the pores of a hydrophobic porous membrane supporting the membrane liquid. Such membrane support can be either flat porous PTFE or polypropylene membrane sheets or porous polypropylene hollow fibers. Typical solvents are long-chained hydrocarbons like n-undecane or kerosene and more polar compounds like di-n-hexyl ether and di-octyl phosphate. Various additives can increase the efficiency of extraction considerably. The stability of the membrane depends on the... [Pg.381]

Di hexyl ether Di-n-hexyl ether. See n-Hexyl ether... [Pg.1331]

CAS 112-58-3 EINECS/ELINCS 203-987-8 Synonyms Bis (1-hexyl) ether Dihexyl ether Di-n-hexyl ether Ether, dihexyl Hexane, 1,1-oxybis-... [Pg.2036]

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