Dibutyl carbitol

Uses Antistat, dye carrier, humectant, lubricant, release agent, plasticizer for adhesives, capsules, ceramic glazes, creams and lotions, deodorant sticks, inks, lipsticks food-pkg. adhesives and food-contact articles surfactant intermediate Regulatory FDA21CFR 175.105,178.3750,178.3910 EPA regulated Properties Liq. sol. in water, methanol, ethanol, acetone, trichloroethylene, Cello-solve , Carbitol , dibutyl phthalate, toluene m.w. 380420 sp.gr. 1.1254 dens. 9.39 Ib/gal vise. 7.3 cSt (210 F) fp. 4-8 C flash pt. (CCC) > 350 F ref index 1.465 pH 4.5-7.5 (5% aq.) surf. tens. 44.5 dynes/cm Carbowax PEG 540 Blend [Dow]... 

Actinide ions form complex ions with a large number of organic substances (12). Their extractabiUty by these substances varies from element to element and depends markedly on oxidation state. A number of important separation procedures are based on this property. Solvents that behave in this way are thbutyl phosphate, diethyl ether [60-29-7J, ketones such as diisopropyl ketone [565-80-5] or methyl isobutyl ketone [108-10-17, and several glycol ether type solvents such as diethyl CeUosolve [629-14-1] (ethylene glycol diethyl ether) or dibutyl Carbitol [112-73-2] (diethylene glycol dibutyl ether). 

Liu, M. Zhang, S. Sun, S. The industrial practice of utilizing dibutyl carbitol in solvent extraction of gold. Kuangye Gongcheng 1995, 15, 37 10. 

Dibutyl adipate, dl52 Dibutyl carbitol, bl51... 

Butex A process for separating the radioactive components of spent nuclear fuel by solvent extraction from nitric acid solution, using diethylene glycol dibutyl ether (also called Butex, or dibutyl carbitol) as the solvent. Developed by the Ministry of Supply (later the UK Atomic Energy Authority) in the late 1940s. Operated at Windscale from 1952 until 1964 when it was superseded by the Purex process. 

For dibutyl carbitol, spectrophotometric and other data234 have been interpreted in terms of the formation of species such as [H+(H20)4(DBC)n]AuCl4-. Since the PGM themselves are not extracted to any significant extent by these extractants, useful separations of gold from other precious metals can be made readily. 

The extraction of gold from PGM solutions by dibutyl carbitol is used by Inco,226 whereas extraction by methyl isobutyl ketone is used by Matthey Rustenburg Refiners.224 In both instances, the extraction of the gold immediately precedes the respective extraction steps for palladium described previously. Base-metal anions, such as FeCl4 , which are extracted at high concentrations of aqueous chloride, can be removed by contacting the loaded organic phase with water or dilute hydrochloric acid. Under these conditions, the base-metal chloro anions are converted to the aquated cations, e.g. 

OCTADECENYL)OXY)STANNANE (Z,Z) see DEJOOO DIBUTYL BUTANEPHOSPHONATE see DDV800 DIBUTYL BUTYLPHOSPHONATE see DDV800 DIBUTYL CARBITOL see DDW200 DIBUTYL-o-(o-CARBOXYBENZOYI,) GLYCOLATE see BQP750... 

CeH5C-0-C-0C4H9- ) was studied in dibutyl carbitol at 155 °C . Unfortunately, the first-order rate coefficients were irreproducible and increased as the reaction proceeded. The rate coefficients varied between 2 and 13 x 10 sec at 155°. The course of the reaction is... 

Table 2. Kinetic data for the thermolysis of -XC8H4(C6H5)2CN3 in dibutyl carbitol and migration aptitudes in absence of solvent ...

Rate of decomposition of Ph3CN3(X=H) in dibutyl carbitol defined as 1-00. 

Natural successors to diethyl ether as an extractant were various ethers, polyethers, and alcohols such as dibutyl carbitol, known as "triether," dibutoxytetraethylene glycol, known as "pentaether," and ketones such as methyl isobutyl ketone, known as "MIBK" or, hexoneM (4). Most applications for the ether extractants required the addition of high concentrations of... 

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